Typical Application Minimum Input Voltage

Size: px
Start display at page:

Download "Typical Application Minimum Input Voltage"

Transcription

1 Features n V IN Range:.9V to 1V n Dropout Votage: 145mV Typica n Output Current: 1A n Adjustabe Output (V REF = V OUT(MIN) = 2mV) n Stabe with Low ESR, Ceramic Output Capacitors (1µF Minimum) n.5% Typica Load Reguation from 1mA to 1A n Quiescent Current: 4µA Typica n 7.5µA Typica Quiescent Current in Shutdown n Current Limit Protection n Reverse-Battery Protection with No Reverse Current n Therma Limiting with Hysteresis n 16-Lead (5mm 3mm) DFN and MSOP Packages Appications n High Efficiency Linear Reguators n Battery-Powered Systems n Logic Suppies n Post Reguator for Switching Suppies n Wireess Modems n FPGA Core Suppies Description LT322 1A,.9V to 1V, Very Low Dropout Linear Reguator The LT 322 is a very ow dropout votage (VLDO ) inear reguator that operates from singe input suppies down to.9v. The device suppies 1A output current with 145mV typica dropout votage. The LT322 is idea for ow input votage to ow output votage appications, providing comparabe eectrica efficiency to a switching reguator. The reguator optimizes stabiity and transient response with ow ESR ceramic output capacitors as sma as 1µF. Other LT322 features incude.5% typica ine reguation and.5% typica oad reguation. In shutdown, quiescent current typicay drops to 7.5µA. Interna protection circuitry incudes reverse-battery protection, current imiting, therma imiting with hysteresis and reverse-current protection. The LT322 is avaiabe as an adjustabe device with an output votage range down to the 2mV reference. The LT322 reguator is avaiabe in the thermay enhanced ow profie (.75mm) 16-ead (5mm 3mm) DFN and MSOP packages. L, LT, LTC, LTM, Linear Technoogy and the Linear ogo are registered trademarks of Linear Technoogy Corporation. VLDO is a trademark of Linear Technoogy Corporation. A other trademarks are the property of their respective owners. Typica Appication Minimum Input Votage V IN 1.2V 1.2V to.9v, 1A VLDO Reguator 1µF IN OUT LT322 SHDN ADJ GND 698Ω 1% 2Ω 1% 322 TA1a 1µF V OUT.9V 1A MINIMUM INPUT VOLTAGE (V) TA1b 322f

2 LT322 Absoute Maximum Ratings IN Pin Votage... ±1V OUT Pin Votage... ±1V Input-to-Output Differentia Votage... ±1V ADJ Pin Votage... ±1V SHDN Pin Votage... ±1V Output Short-Circuit Duration... Indefinite (Note 1) Operating Junction Temperature Range E-, I-Grades (Notes 2, 3)... 4 C to 125 C Storage Temperature Range C to 15 C Lead Temperature (Sodering, 1 sec) MSOP Package... 3 C Pin Configuration TOP VIEW NC NC OUT OUT ADJ AGND AGND NC GND 16 NC 15 NC 14 IN 13 IN 12 IN 11 PGND 1 PGND 9 SHDN DHC PACKAGE 16-LEAD (5mm 3mm) PLASTIC DFN T JMAX = 125 C, θ JA = 38 C/W*, θ JC = 4 C/W EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB *SEE THE APPLICATIONS INFORMATION SECTION NC NC OUT OUT ADJ AGND AGND NC TOP VIEW 17 GND NC NC IN IN IN PGND PGND SHDN MSE PACKAGE 16-LEAD PLASTIC MSOP T JMAX = 125 C, θ JA = 38 C/W*, θ JC = 5 C/W TO 1 C/W EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB *SEE THE APPLICATIONS INFORMATION SECTION Order Information LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT322EDHC#PBF LT322EDHC#TRPBF Lead (5mm 3mm) Pastic DFN 4 C to 125 C LT322IDHC#PBF LT322IDHC#TRPBF Lead (5mm 3mm) Pastic DFN 4 C to 125 C LT322EMSE#PBF LT322EMSE#TRPBF Lead Pastic MSOP 4 C to 125 C LT322IMSE#PBF LT322IMSE#TRPBF Lead Pastic MSOP 4 C to 125 C LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT322EDHC LT322EDHC#TR Lead (5mm 3mm) Pastic DFN 4 C to 125 C LT322IDHC LT322IDHC#TR Lead (5mm 3mm) Pastic DFN 4 C to 125 C LT322EMSE LT322EMSE#TR Lead Pastic MSOP 4 C to 125 C LT322IMSE LT322IMSE#TR Lead Pastic MSOP 4 C to 125 C Consut LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a abe on the shipping container. For more information on ead free part marking, go to: For more information on tape and ree specifications, go to: 322f

3 Eectrica Characteristics The denotes the specifications which appy over the fu operating temperature range, otherwise specifications are at T A = 25 C. LT322 PARAMETER CONDITIONS MIN TYP MAX UNITS Minimum Input Votage (Notes 4, 6) I LOAD = 1A, T A > C I LOAD = 1A, T A C ADJ Pin Votage (Notes 5, 6) V IN = 1.5V, I LOAD = 1mA 1.15V < V IN < 1V, 1mA < I LOAD < 1A Line Reguation (Note 7) V IN = 1.15V to 1V, I LOAD = 1mA mv Load Reguation (Note 7) V IN = 1.15V, I LOAD = 1mA to 1A mv mv Dropout Votage (Notes 8, 9) I LOAD = 1mA mv 135 mv I LOAD = 1mA 55 9 mv 175 mv I LOAD = 5mA mv 235 mv I LOAD = 1A mv 285 mv GND Pin Current, V IN = V OUT(NOMINAL) +.4V (Notes 9, 1) Output Votage Noise I LOAD = ma I LOAD = 1mA I LOAD = 1mA I LOAD = 5mA I LOAD = 1A C OUT = 1µF, I LOAD = 1A, BW = 1Hz to 1kHz, V V mv mv µa ma ma ma ma 165 µv RMS ADJ Pin Bias Current (Notes 7, 11) V ADJ =.2V, V IN = 1.5V 3 1 na Shutdown Threshod V OUT = Off to On.64.9 V V OUT = On to Off V SHDN Pin Current (Note 12) V SHDN = V, V IN = 1V V SHDN = 1V, V IN = 1V 3 Quiescent Current in Shutdown V IN = 6V, V SHDN = V µa Rippe Rejection (Note 13) V IN V OUT = 1V, V RIPPLE =.5V P-P, 55 7 db f RIPPLE = 12Hz, I LOAD = 1A Current Limit (Note 9) V IN = 1V, V OUT = V 2.6 A V IN = V OUT(NOMINAL) +.5V, V OUT 5% A Input Reverse Leakage Current (Note 14) V IN = 1V, V OUT = V 4 2 µa Reverse Output Current (Notes 15, 16), V IN = V.1 5 µa Minimum Required Output Current V IN = 1.6V, 1 ma ±1 9.5 µa µa Note 1: Stresses beyond those isted under Absoute Maximum Ratings may cause permanent damage to the device. Exposure to any Absoute Maximum Rating condition for extended periods may affect device reiabiity and ifetime. Note 2: The LT322 reguator is tested and specified under puse oad conditions such that T J T A. The LT322 is 1% tested at T A = 25 C. Performance of the LT322E over the fu 4 C and 125 C operating junction temperature range is assured by design, characterization and correation with statistica process contros. The LT322I reguators are guaranteed over the fu 4 C to 125 C operating junction temperature range. High junction temperatures degrade operating ifetime. Operating ifetime is derated at junction temperatures greater than 125 C. Note 3: This IC incudes overtemperature protection that is intended to protect the device during momentary overoad conditions. Junction temperature wi exceed 125 C when overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device reiabiity. Note 4: Minimum input votage is the votage required by the LT322 to reguate the output votage and suppy the rated 1A output current. This specification is tested at V OUT =.2V. For higher output votages, the minimum input votage required for reguation equas the reguated output votage V OUT pus the dropout votage or 1.1V, whichever is greater. Note 5: Maximum junction temperature imits operating conditions. The reguated output votage specification does not appy for a possibe combinations of input votage and output current. Limit the output current range if operating at maximum input votage. Limit the input-to-output votage differentia range if operating at maximum output current. 322f

4 LT322 Eectrica Characteristics Note 6: The LT322 typicay suppies 1A output current with a.9v input suppy. The guaranteed minimum input votage for 1A output current is 1.1V, especiay if cod temperature operation is required. Note 7: The LT322 is tested and specified for these conditions with ADJ tied to OUT. Note 8: Dropout votage is the minimum input to output votage differentia needed to maintain reguation at a specified output current. In dropout the output votage equas: (V IN V DROPOUT ). Note 9: The LT322 is tested and specified for these conditions with an externa resistor divider (3.92k and 19.6k) setting V OUT to 1.2V. The externa resistor divider adds 5µA of oad current. Note 1: GND pin current is tested with V IN = V OUT(NOMINAL) +.4V and a current source oad. GND pin current increases in dropout. See GND pin current curves in the Typica Performance Characteristics section. Note 11: Adjust pin bias current fows out of the ADJ pin. Note 12: Shutdown pin current fows into the SHDN pin. Note 13: The LT322 is tested and specified for this condition with an externa resistor divider (3.92k and 5.9k) setting V OUT to.5v. The externa resistor divider adds 5µA of oad current. The specification refers to the change in the.2v reference votage, not the.5v output votage. Note 14: Input reverse eakage current fows out of the IN pin. Note 15: Reverse output current is tested with IN grounded and OUT forced to the rated output votage. This current fows into the OUT pin and out of the GND pin. Note 16: Reverse current is higher for the case of (rated_output) < V OUT < V IN, because the no-oad recovery circuitry is active in this region and is trying to restore the output votage to its nomina vaue. Typica Performance Characteristics DROPOUT VOLTAGE (mv) Dropout Votage Guaranteed Dropout Votage Dropout Votage T J = 125 C T J = 4 C OUTPUT CURRENT (ma) GUARANTEED DROPOUT VOLTAGE (mv) = TEST POINTS T J = 125 C OUTPUT CURRENT (ma) DROPOUT VOLTAGE (mv) I L = 1mA I L = 5mA I L = 1mA G1 322 G2 322 G3 MINIMUM INPUT VOLTAGE (V) Minimum Input Votage G4 ADJ PIN VOLTAGE (mv) ADJ Pin Votage 26 I L = 1mA G5 322f

5 Typica Performance Characteristics LT322 ADJ PIN BIAS CURRENT (na) ADJ Pin Bias Current Quiescent Current Quiescent Current QUIESCENT CURRENT (µa) V IN = 6V I L = V SHDN = V IN V SHDN = V QUIESCENT CURRENT (ma) V SHDN = V IN V SHDN = V INPUT VOLTAGE (V) I L = 322 G6 322 G7 322 G8 QUIESCENT CURRENT (ma) Quiescent Current Quiescent Current GND Pin Current V SHDN = V IN V SHDN = V INPUT VOLTAGE (V) V OUT = 1.5V I L = QUIESCENT CURRENT (ma) V SHDN = V IN V SHDN = V INPUT VOLTAGE (V) V OUT = 1.8V I L = GND PIN CURRENT (ma) R L = 2.4Ω I L = 5mA R L = 12Ω I L = 1mA R L = 1.2Ω R L = 12Ω I L = 1mA INPUT VOLTAGE (V) R L = 1.2k I L = 1mA 322 G9 322 G1 322 G GND Pin Current V OUT = 1.5V GND Pin Current V OUT = 1.8V GND PIN CURRENT (ma) R L = 3Ω I L = 5mA R L = 15Ω I L = 1mA R L = 1.5Ω R L = 15Ω I L = 1mA R L = 1.5k I L = 1mA GND PIN CURRENT (ma) R L = 3.6Ω I L = 5mA R L = 1.8Ω R L = 18Ω I L = 1mA R L = 18Ω I L = 1mA R L = 1.8k I L = 1mA INPUT VOLTAGE (V) INPUT VOLTAGE (V) 322 G G13 322f

6 LT322 Typica Performance Characteristics GND PIN CURRENT (ma) GND Pin Current vs I LOAD SHDN Pin Threshod SHDN Pin Input Current V IN = 1.6V V SHDN = 1V LOAD CURRENT (ma) SHDN PIN THRESHOLD (V) I L = 1mA SHDN PIN INPUT CURRENT (µa) SHDN PIN VOLTAGE (V) 322 G G G16 SHDN PIN INPUT CURRENT (µa) SHDN Pin Input Current Current Limit Reverse Input Leakage Current V IN = 1V V SHDN = 1V CURRENT LIMIT (A) V OUT = V V IN = 1V V IN = 1.7V INPUT CURRENT (µa) V OUT = V V SHDN = 1V INPUT VOLTAGE (V) 322 G G G19 INPUT CURRENT (µa) Reverse Input Leakage Current Reverse Output Current Input Rippe Rejection V IN = 1V V OUT = V V SHDN = 1V G2 REVERSE OUTPUT CURRENT (µa) V IN = V I OUT FLOWS INTO OUT PIN I IN FLOWS OUT OF IN PIN I OUT I IN 322 G21 INPUT RIPPLE REJECTION (db) V IN = 1.5V + 5mV RMS RIPPLE V OUT =.5V 1 1 C OUT = 1µF 1k 1k 1k 1M 1M FREQUENCY (Hz) C OUT = 47µF 322 G22 322f

7 Typica Performance Characteristics LT322 INPUT RIPPLE REJECTION (db) Input Rippe Rejection Line Reguation Load Reguation V IN = 1.5V +.5V P-P RIPPLE AT 12Hz V OUT =.5V C OUT = 1µF LINE REGULATION (mv) V IN = 1.15V TO 1V V OUT =.2V I L = 1mA LOAD REGULATION (mv) V IN = 1.15V V OUT =.5V I L = 1mA TO 1A LOAD REGULATION NUMBER REFERS TO CHANGE IN THE 2mV REFERENCE VOLTAGE G G G25 OUTPUT SINK CURRENT (ma) No-Load Recovery Threshod No-Load Recovery Threshod Output Noise Spectra Density 3 TJ = 25 C OUTPUT OVERSHOOT (%) OUTPUT OVERSHOOT (%) I OUT(SINK) = 5mA I OUT(SINK) = 1mA OUTPUT NOISE SPECTRAL DENSITY (µv/ Hz) C OUT = 1µF C OUT = 47µF k 1k 1k 1M FREQUENCY (Hz) 322 G G G28 RMS Output Noise vs Load Current (1Hz to 1kHz) Start-Up from Shutdown Transient Response OUTPUT NOISE (µv RMS ) 2 VOUT = 1.2V C OUT = 1µF LOAD CURRENT (ma) V OUT.5V/DIV V SHDN 1V/DIV R L = 1.2Ω V IN = 1.5V C OUT = 1µF 5µs/DIV 322 G3 V OUT 5mV/DIV I OUT 5mA/DIV V IN = 1.5V 5µs/DIV I OUT = 1mA to 1A C OUT = 22µF t RISE = t FALL = 1ns 322 G G29 322f

8 LT322 Pin Functions NC (Pins 1, 2, 8, 15, 16): No Connect Pins. These pins have no connection to interna circuitry. These pins may be foated, tied to V IN or tied to GND for improved therma performance. OUT (Pins 3, 4): These pins suppy power to the oad. Use a minimum output capacitor of 1µF to prevent osciations. Large oad transient appications require arger output capacitors to imit peak votage transients. See the Appications Information section for more information on output capacitance and reverse-output characteristics. The LT322 requires a 1mA minimum oad current to ensure proper reguation and stabiity. ADJ (Pin 5): This pin is the error ampifier inverting termina. Its 3nA typica input bias current fows out of the pin (see curve of ADJ Pin Bias Current vs Temperature in the Typica Performance Characteristics). The ADJ pin reference votage is 2mV (referred to AGND). AGND (Pins 6, 7): Anaog Ground. Tie these pins directy to PGND (Pins 1, 11) and the exposed backside GND (Pin 17). Connect the bottom of the externa resistor divider, setting output votage, directy to AGND for optimum reguation. SHDN (Pin 9): Puing the SHDN pin ow puts the LT322 into a ow power state and turns the output off. Drive the SHDN pin with either ogic or an open-coector/drain device with a pu-up resistor. The resistor suppies the pu-up current to the open coector/drain ogic, normay severa microamperes, and the SHDN pin current, typicay 3µA. If unused, connect the SHDN pin to V IN. The LT322 does not function if the SHDN pin is not connected. PGND (Pins 1, 11): Power Ground. The majority of ground pin current fows out of PGND. Tie these pins directy to AGND (Pins 6, 7) and the exposed backside GND (Pin 17). IN (Pins 12, 13,14): These pins suppy power to the device. The LT322 requires a bypass capacitor at IN if ocated more than six inches from the main input fiter capacitor. Incude a bypass capacitor in battery-powered circuits as a battery s output impedance rises with frequency. A minimum bypass capacitor of 1µF suffices. The LT322 withstands reverse votages on the IN pin with respect to ground and the OUT pin. In the case of a reversed input, which occurs if a battery is pugged in backwards, the LT322 behaves as if a diode is in series with its input. No reverse current fows into the LT322 and no reverse votage appears at the oad. The device protects itsef and the oad. GND (Pin 17): Exposed Pad. Tie this pin directy to AGND (Pins 6, 7), PGND (Pins 1, 11) and the PCB ground. This pin provides enhanced therma performance with its connection to the PCB ground. See the Appications Information section for therma considerations and cacuating junction temperature. 322f

9 Bock Diagram LT322 9 SHDN SHUTDOWN THERMAL SHUTDOWN R3 IN 12, 13, 14 D1 Q3 2mV BIAS CURRENT AND REFERENCE GENERATOR 213mV + ERROR AMP NO-LOAD RECOVERY CURRENT GAIN Q1 PGND 1, 11 D2 Q2 R2 OUT 3, 4 IDEAL DIODE 25k NOTE: R1 AND R2 ARE EXTERNAL TIE PGND, AGND AND THE EXPOSED PAD TOGETHER R1 322 BD ADJ AGND 6, Appications Information The LT322 very ow dropout inear reguator is capabe of.9v input suppy operation. It suppies 1A output current and dropout votage is typicay 145mV. Quiescent current is typicay 4µA and drops to 7.5µA in shutdown. The LT322 incorporates severa protection features, making it idea for use in battery-powered systems. The device protects itsef against reverse-input and reverse-output votages. If the output is hed up by a backup battery when the input is pued to ground in a battery backup appication, the LT322 behaves as if a diode is in series with its output, preventing reverse current fow. In dua suppy appications where the reguator oad is returned to a negative suppy, puing the output beow ground by as much as 1V does not affect start-up or norma operation. Technoogy recommends choosing resistor divider vaues to satisfy this requirement. A 2Ω R1 vaue sets a 1mA resistor divider current. In shutdown, the output is off and the divider current is zero. Curves of ADJ Pin Votage vs Temperature and ADJ Pin Bias Current vs Temperature appear in the Typica Performance Characteristics section. Specifications for output votages greater than 2mV are proportiona to the ratio of desired output votage to 2mV (V OUT /2mV). For exampe, oad reguation for an output current change of 1mA to 1A is typicay.1mv at V ADJ = 2mV. At V OUT = 1.5V, oad reguation is: 1. 5V. 1mV = 75µV 2mV Adjustabe Operation The LT322 s output votage range is.2v to 9.5V. Figure 1 shows that the externa resistor ratio sets output votage. The device reguates the output to maintain ADJ at 2mV referred to ground. R1 s current equas 2mV/R1. R2 s current is R1 s current minus the ADJ pin bias current. The 3nA ADJ pin bias current fows out of the pin. Use Figure 1 s formua to cacuate output votage. Given the LT322 s 1mA minimum oad current requirement, Linear + V IN IN OUT LT322 SHDN ADJ GND V OUT : 2mV (1 + R2/R1) (I ADJ R2) V ADJ : 2mV I ADJ : 3nA AT 25 C OUTPUT RANGE:.2V TO 9.5V R2 R1 322 F1 Figure 1. Adjustabe Operation V OUT 322f

10 LT322 Appications Information Tabe 1 shows 1% resistor divider vaues for some common output votages with a resistor divider current equaing or about 1mA. Tabe 1 V OUT (V) R1 (Ω) R2 (Ω) Output Capacitance and Transient Response The LT322 s design is stabe with a wide range of output capacitors, but is optimized for ow ESR ceramic capacitors. The output capacitor s ESR affects stabiity, most notaby with sma vaue capacitors. Use a minimum output capacitor of 1µF with an ESR of ess than.1ω to prevent osciations. The LT322 is a ow votage device and output oad transient response is a function of output capacitance. Larger vaues of output capacitance decrease the peak deviations and provide improved transient response for arge oad current changes. Ceramic capacitors require extra consideration. Manufacturers make ceramic capacitors with a variety of dieectrics; each with a different behavior across temperature and appied votage. The most common dieectrics are Z5U, Y5V, X5R and X7R. Z5U and Y5V dieectrics provide high C-V products in a sma package at ow cost, but exhibit strong votage and temperature coefficients. X5R and X7R dieectrics yied highy stabe characteristics and are more suitabe for use as the output capacitor at fractionay increased cost. X5R and X7R dieectrics both exhibit exceent votage coefficient characteristics. X7R works over a arger temperature range and exhibits better temperature stabiity whereas X5R is ess expensive and is avaiabe in higher vaues. Figures 2 and 3 show votage coefficient and temperature coefficient comparisons between Y5V and X5R materia. CHANGE IN VALUE (%) BOTH CAPACITORS ARE 16V, 121 CASE SIZE, 1µF X5R Y5V DC BIAS VOLTAGE (V) F2 Figure 2. Ceramic Capacitor DC Bias Characteristics CHANGE IN VALUE (%) Y5V X5R 8 BOTH CAPACITORS ARE 16V, 121 CASE SIZE, 1µF F3 Figure 3. Ceramic Capacitor Temperature Characteristics Votage and temperature coefficients are not the ony sources of probems. Some ceramic capacitors have a piezoeectric response. A piezoeectric device generates votage across its terminas due to mechanica stress, simiar to the way a piezoeectric acceerometer or microphone works. For a ceramic capacitor, the stress can be induced by vibrations in the system or therma transients. The resuting votages produced can cause appreciabe amounts of noise. A ceramic capacitor produced Figure 4 s trace in response to ight tapping from a penci. Simiar vibration induced behavior can masquerade as increased output votage noise f

11 Appications Information 1mV/DIV V OUT = 1.3V C OUT = 1µF I LOAD = 1ms/DIV 322 F4 Figure 4. Noise Resuting from Tapping on a Ceramic Capacitor No-Load/Light-Load Recovery A possibe transient oad step that occurs is where the output current changes from its maximum eve to zero current or a very sma oad current. The output votage responds by overshooting unti the reguator owers the amount of current it deivers to the new eve. The reguator oop response time and the amount of output capacitance contro the amount of overshoot. Once the reguator has decreased its output current, the current provided by the resistor divider (which sets V OUT ) is the ony current remaining to discharge the output capacitor from the eve to which it overshot. The amount of time it takes for the output votage to recover easiy extends to miiseconds with minimum divider current and many microfarads of output capacitance. To eiminate this probem, the LT322 incorporates a no-oad or ight oad recovery circuit. This circuit is a votage-controed current sink that significanty improves the ight oad transient response time by discharging the output capacitor quicky and then turning off. The current sink turns on when the output votage exceeds 6.5% of the nomina output votage. The current sink eve is then proportiona to the overdrive above the threshod up to a maximum of about 24mA. Consut the curve in the Typica Performance Characteristics for the No-Load Recovery Threshod. LT322 If externa circuitry forces the output above the no-oad recovery circuit s threshod, the current sink turns on in an attempt to restore the output votage to nomina. The current sink remains on unti the externa circuitry reeases the output. However, if the externa circuitry pus the output votage above the input votage or the input fas beow the output, the LT322 turns the current sink off and shuts down the bias current/reference generator circuitry. Therma Considerations The LT322 s maximum rated junction temperature of 125 C imits its power handing capabiity. Two components comprise the power dissipation of the device: 1. Output current mutipied by the input-to-output votage differentia: (I LOAD ) (V IN V OUT ) and 2. GND pin current mutipied by the input votage: (I GND ) (V IN ) GND pin current is found by examining the GND pin current curves in the Typica Performance Characteristics. Power dissipation equas the sum of the two components isted. The LT322 s interna therma imiting (with hysteresis) protects the device during overoad conditions. For norma continuous conditions, do not exceed the maximum junction temperature rating of 125 C. Carefuy consider a sources of therma resistance from junction to ambient incuding other heat sources mounted in proximity to the LT322. The underside of the LT322 DHC and MSE packages has exposed meta from the ead frame to the die attachment. Heat transfers directy from the die junction to the printed circuit board meta, aowing maximum junction temperature contro. The dua-in-ine pin arrangement aows meta to extend beyond the ends of the package on the topside (component side) of a PCB. Connect this meta to GND on the PCB. The mutipe IN and OUT pins of the LT322 aso assist in spreading heat to the PCB. Copper board stiffeners and pated throughhoes can aso be used to spread the heat generated by power devices. 322f 11

12 LT322 Appications Information The foowing tabes ist therma resistance as a function of copper area in a fixed board size. A measurements are taken in sti air on a 4-ayer FR-4 board with 1oz soid interna panes, and 2oz externa trace panes with a tota board thickness of 1.6mm. For more information on therma resistance and high therma conductivity test boards, refer to JEDEC standard JESD51, notaby JESD51-12 and JESD51-7. Achieving ow therma resistance necessitates attention to detai and carefu PCB ayout. Tabe 2. Measured Therma Resistance for DHC Package COPPER AREA THERMAL RESISTANCE TOPSIDE* BACKSIDE BOARD AREA (JUNCTION-TO-AMBIENT) 25mm 2 25mm 2 25mm 2 35 C/W 1mm 2 25mm 2 25mm 2 37 C/W 225mm 2 25mm 2 25mm 2 38 C/W 1mm 2 25mm 2 25mm 2 4 C/W *Device is mounted on topside Tabe 3. Measured Therma Resistance for MSE Package COPPER AREA THERMAL RESISTANCE TOPSIDE* BACKSIDE BOARD AREA (JUNCTION-TO-AMBIENT) 25mm 2 25mm 2 25mm 2 35 C/W 1mm 2 25mm 2 25mm 2 37 C/W 225mm 2 25mm 2 25mm 2 38 C/W 1mm 2 25mm 2 25mm 2 4 C/W *Device is mounted on topside. Cacuating Junction Temperature Exampe: Given an output votage of 1.5V, an input votage range of 1.7V to 1.9V, an output oad current range of 1mA to 1A and a maximum ambient temperature of 85 C, what is the maximum junction temperature for an appication using the DHC package? The power dissipated by the device equas: I LOAD(MAX) (V IN(MAX ) V OUT ) + I GND (V IN(MAX) ) where: I LOAD(MAX) = 1A V IN(MAX) = 1.9V I GND at (I LOAD = 1A, V IN = 1.9V) = 18mA so: P = 1A (1.9V 1.5V) + 18mA (1.9V) =.434W 12 The therma resistance is about 38 C/W depending on the copper area. So the junction temperature rise above ambient is approximatey equa to:.434w (38 C/W) = 16.5 C The maximum junction temperature equas the maximum junction temperature rise above ambient pus the maximum ambient temperature or: T JMAX = 85 C C = 11.5 C Protection Features The LT322 incorporates severa protection features that make it idea for use in battery-powered circuits. In addition to the norma protection features associated with monoithic reguators, such as current imiting and therma imiting, the device aso protects against reverse-input votages, reverse-output votages and reverse output-toinput votages. Current imit protection and therma overoad protection protect the device against current overoad conditions at its output. For norma operation, do not exceed 125 C junction temperature. The typica therma shutdown temperature is 165 C and the therma shutdown circuit incorporates about 7 C of hysteresis. The IN pins withstand reverse votages of 1V. The LT322 imits current fow to ess than 1µA and no negative votage appears at OUT. The device protects both itsef and the oad against batteries that are pugged in backwards. The LT322 incurs no damage if OUT is pued beow ground. If IN is eft open-circuited or grounded, OUT can be pued beow ground by 1V. No current fows from the pass transistor connected to OUT. However, current fows in (but is imited by) the resistor divider that sets the output votage. Current fows from the bottom resistor in the divider and from the ADJ pin s interna camp through the top resistor in the divider to the externa circuitry puing OUT beow ground. If IN is powered by a votage source, OUT sources current equa to its current imit capabiity and the LT322 protects itsef by therma imiting. In this case, grounding SHDN turns off the LT322 and stops OUT from sourcing current. 322f

13 LT322 Appications Information The LT322 incurs no damage if the ADJ pin is pued above or beow ground by 1V. If IN is eft open-circuited or grounded and ADJ is pued above ground, ADJ acts ike a 25k resistor in series with two diodes. ADJ acts ike a 25k resistor if pued beow ground. If IN is powered by a votage source and ADJ is pued beow its reference votage, the LT322 attempts to source its current imit capabiity at OUT. The output votage increases to V IN V DROPOUT with V DROPOUT set by whatever oad current the LT322 supports. This condition can potentiay damage externa circuitry powered by the LT322 if the output votage increases to an unreguated high votage. If IN is powered by a votage source and ADJ is pued above its reference votage, two situations can occur. If ADJ is pued sighty above its reference votage, the LT322 turns off the pass transistor, no output current is sourced and the output votage decreases to either the votage at ADJ or ess. If ADJ is pued above its no-oad recovery threshod, the no-oad recovery circuitry turns on and attempts to sink current. OUT is activey pued ow and the output votage camps at a Schottky diode above ground. Pease note that the behavior described above appies to the LT322 ony. If a resistor divider is connected under the same conditions, there wi be additiona V/R current. In circuits where a backup battery is required, severa different input/output conditions can occur. The output votage may be hed up whie the input is either pued to ground, pued to some intermediate votage or is eft open circuit. In the case where the input is grounded, there is ess than 1µA of reverse output current. If the LT322 IN pin is forced beow the OUT pin or the OUT pin is pued above the IN pin, input current drops to ess than 1µA typicay. This occurs if the LT322 input is connected to a discharged (ow votage) battery and either a backup battery or a second reguator circuit hods up the output. The state of the SHDN pin has no effect on the reverse output current if OUT is pued above IN. Input Capacitance and Stabiity The LT322 design is stabe with a minimum of 1µF capacitor paced at the IN pin. Very ow ESR ceramic capacitors may be used. However, in cases where ong wires connect the power suppy to the LT322 s input and ground, use of ow vaue input capacitors combined with an output oad current of greater than 2mA may resut in instabiity. The resonant LC tank circuit formed by the wire inductance and the input capacitor is the cause and not a resut of LT322 instabiity. The sef-inductance, or isoated inductance, of a wire is directy proportiona to its ength. However, the wire diameter has ess infuence on its sef inductance. For exampe, the sef-inductance of a 2-AWG isoated wire with a diameter of.26" is about haf the inductance of a 3-AWG wire with a diameter of.1". One foot of 3-AWG wire has 465nH of sef-inductance. Severa methods exist to reduce a wire s sef-inductance. One method divides the current fowing towards the LT322 between two parae conductors. In this case, pacing the wires further apart reduces the inductance; up to a 5% reduction when paced ony a few inches apart. Spitting the wires connects two equa inductors in parae. However, when paced in cose proximity to each other, mutua inductance adds to the overa sef inductance of the wires. The most effective technique to reducing overa inductance is to pace the forward and return current conductors (the input wire and the ground wire) in cose proximity. Two 3-AWG wires separated by.2" reduce the overa sef-inductance to about one-fifth of a singe wire. If a battery, mounted in cose proximity, powers the LT322, a 1µF input capacitor suffices for stabiity. However, if a distanty ocated suppy powers the LT322, use a arger vaue input capacitor. Use a rough guideine of 1µF (in addition to the 1µF minimum) per 8 inches of wire ength. The minimum input capacitance needed to stabiize the appication aso varies with power suppy output impedance variations. Pacing additiona capacitance on the LT322 s output aso heps. However, this requires an order of magnitude more capacitance in comparison with additiona LT322 input bypassing. Series resistance between the suppy and the LT322 input aso heps stabiize the appication; as itte as.1ω to.5ω suffices. This impedance dampens the LC tank circuit at the expense of dropout votage. A better aternative is to use higher ESR tantaum or eectroytic capacitors at the LT322 input in pace of ceramic capacitors. 322f 13

14 LT322 Package Description DHC Package 16-Lead Pastic DFN (5mm 3mm) (Reference LTC DWG # ) (2 SIDES) PACKAGE OUTLINE (2 SIDES) BSC RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 5..1 (2 SIDES) R =.2 TYP 9 R =.115 TYP PIN 1 TOP MARK (SEE NOTE 6).2 REF 3..1 (2 SIDES) (2 SIDES)..5 NOTE: 1. DRAWING PROPOSED TO BE MADE VARIATION OF VERSION (WJED-1) IN JEDEC PACKAGE OUTLINE MO DRAWING NOT TO SCALE 3. ALL DIMENSIONS ARE IN MILLIMETERS 4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED.15mm ON ANY SIDE 5. EXPOSED PAD SHALL BE SOLDER PLATED 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE BSC (2 SIDES) BOTTOM VIEW EXPOSED PAD PIN 1 NOTCH (DHC16) DFN f

15 Package Description MSE Package 16-Lead Pastic MSOP, Exposed Die Pad (Reference LTC DWG # Rev A) LT322 BOTTOM VIEW OF EXPOSED PAD OPTION (.112.4) (.35.5) (.112.4) REF 5.23 (.26) MIN (.12.15) TYP RECOMMENDED SOLDER PAD LAYOUT GAUGE PLANE.254 (.1) (.65.4) ( ) DETAIL A.5 (.197) BSC 6 TYP (.193.6) (.65.4) DETAIL B (.159.4) (NOTE 3) (.11.3) REF (.118.4) (NOTE 4).12 REF DETAIL B CORNER TAIL IS PART OF THE LEADFRAME FEATURE. FOR REFERENCE ONLY NO MEASUREMENT PURPOSE.18 (.7) DETAIL A (.21.6) 1.1 (.43) MAX (.34) REF NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE SEATING PLANE (.7.11) TYP.5 (.197) BSC 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED.152mm (.6") PER SIDE 4. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED.152mm (.6") PER SIDE 5. LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE.12mm (.4") MAX (.4.2) MSOP (MSE16) 68 REV A Information furnished by Linear Technoogy Corporation is beieved to be accurate and reiabe. However, no responsibiity is assumed for its use. Linear Technoogy Corporation makes no representation that the interconnection of its circuits as described herein wi not infringe on existing patent rights. 322f 15

16 LT322 Typica Appication 1.5V to 1.2V, 1A VLDO Reguator V IN 1.5V 1µF IN OUT LT322 SHDN ADJ GND 1k 1% 2Ω 1% 1µF V OUT 1.2V 1A 322 TA2 Reated Parts PART NUMBER DESCRIPTION COMMENTS LT32 1mA, Low Votage VLDO Linear Reguator V IN :.9V to 1V, V OUT :.2V to 9.5V, V DO =.15V, I Q = 12µA, Noise: <25µV RMS, Stabe with 2.2µF Ceramic Capacitors, DFN-8, MS8 Packages LT321 5mA, Low Votage, VLDO Linear Reguator V IN :.9V to 1V, Dropout Votage: 16mV Typica, Adjustabe Output (V REF = V OUT(MIN) = 2mV), Fixed Output Votages: 1.2V, 1.5V, 1.8V, Stabe with Low ESR, Ceramic Output Capacitors, 16-Pin DFN (5mm 5mm) and 8-Lead SO Packages LTC 325 3mA Micropower VLDO Linear Reguator V IN =.9V to 5.5V, Dropout Votage: 45mV, Low Noise 8µV RMS, Low I Q : 54µA, 2mm 2mm 6-Lead DFN Package LTC325-1/LTC325-2/ LTC325-3/LTC mA Micropower VLDO Linear Reguator in 2mm 2mm DFN V IN =.9V to 5.5V, Dropout Votage: 75mV, Low Noise 8µV RMS, Low I Q : 54µA, Fixed Output: 1.2V (LTC325-2), 1.5V (LTC325-3), 1.8V (LTC325-4); Adjustabe Output Range:.4V to 3.6V (LTC325-1), 2mm 2mm 6-Lead DFN Package LTC A, Low Input Votage VLDO Linear Reguator V IN : 1.14V to 3.5V (Boost Enabed), 1.14V to 5.5V (with Externa 5V), V DO =.1V, I Q = 95µA, Stabe with 1µF Ceramic Capacitors, 1-Lead MSOP and DFN-1 Packages LT329 LTC335 LT38/LT38-1 LT385 Dua 5mA/5mA, Low Dropout, Low Noise, Micropower Linear Reguator 3mA VLDO Linear Reguator with Charge Pump Bias Generator 1.1A, Paraeabe, Low Noise, Low Dropout Linear Reguator 5mA, Paraeabe, Low Noise, Low Dropout Linear Reguator Output Current: 5mA per Channe, Low Dropout Votage: 3mV Low Noise: 2µV RMS (1Hz to 1kHz), Low Quiescent Current: 55µA per Channe, Wide Input Votage Range: 1.8V to 2V (Common or Independent Input Suppy), Adjustabe Output: 1.215V Reference, Very Low Quiescent Current in Shutdown: <1µA per Channe Stabe with 3.3µF Minimum Output Capacitor, Stabe with Ceramic, Tantaum or Auminum Eectroytic Capacitors, Reverse- Battery, Reverse-Output and Reverse Output-to-Input Protection, Thermay Enhanced 16-Lead MSOP and 16-Lead (4mm 3mm) DFN Packages V IN = 1.7V to 5.5V, V OUT :.4V to 3.6V, Dropout Votage: 45mV, I Q : 1µA, 3mm 2mm DFN-8 3mV Dropout Votage (2-Suppy Operation), Low Noise: 4µV RMS, V IN : 1.2V to 36V, V OUT : V to 35.7V, Current-Based Reference with 1-Resistor V OUT Set; Directy Paraeabe (No Op Amp Required), Stabe with Ceramic Capacitors, TO-22, SOT-223, MSOP-8 and 3mm 3mm DFN-8 Packages; LT38-1 Has Integrated Interna Baast Resistor 275mV Dropout Votage (2-Suppy Operation), Low Noise: 4µV RMS, V IN : 1.2V to 36V, V OUT : V to 35.7V, Current-Based Reference with 1-Resistor V OUT Set; Directy Paraeabe (No Op Amp Required), Stabe with Ceramic Capacitors, MSOP-8 and 2mm 3mm DFN-6 packages 16 Linear Technoogy Corporation 163 McCarthy Bvd., Mipitas, CA (48) FAX: (48) LINEAR TECHNOLOGY CORPORATION f LT 41 PRINTED IN USA

LT3014B 20mA, 3V to 80V Low Dropout Micropower Linear Regulator FEATURES

LT3014B 20mA, 3V to 80V Low Dropout Micropower Linear Regulator FEATURES LT314B 2mA, 3V to 8V Low Dropout Micropower Linear Reguator FEATURES n Wide Input Votage Range: 3V to 8V n Low Quiescent Current: 7µA n Low Dropout Votage: 35 n Output Current: 2mA n LT314BHV Survives

More information

LT mA, 3V to 80V Low Dropout Micropower Linear Regulator DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION

LT mA, 3V to 80V Low Dropout Micropower Linear Regulator DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION FEATURES n Wide Input Votage Range: 3V to 8V n Low Quiescent Current: 7µA n Low Dropout Votage: 35mV n Output Current: 2mA n LT31HV Survives 1V Transients (2ms) n No Protection Diodes Needed n Adjustabe

More information

LT mA, 3V to 80V Low Dropout Micropower Linear Regulator with PWRGD DESCRIPTION FEATURES

LT mA, 3V to 80V Low Dropout Micropower Linear Regulator with PWRGD DESCRIPTION FEATURES FEATURES n Wide Input Votage Range: 3V to 8V n Low Quiescent Current: 46 n Low Dropout Votage: 3 n Output Current: 5mA n PWRGD Fag with Programmabe Deay n No Protection Diodes Needed n Adjustabe Output

More information

APPLICATIO S TYPICAL APPLICATIO. LT3020/LT / LT /LT mA, Low Voltage, Very Low Dropout Linear Regulator DESCRIPTIO FEATURES

APPLICATIO S TYPICAL APPLICATIO. LT3020/LT / LT /LT mA, Low Voltage, Very Low Dropout Linear Regulator DESCRIPTIO FEATURES LT32/LT32-1.2/ LT32-1.5/LT32-1.8 1mA, Low Voltage, Very Low Dropout Linear Regulator FEATURES V IN Range:.9V to 1V Minimum Input Voltage:.9V Dropout Voltage: 15mV Typical Output Current: 1mA Adjustable

More information

LT mA, 4V to 80V Low Dropout Micropower Linear Regulator DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION

LT mA, 4V to 80V Low Dropout Micropower Linear Regulator DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION FEATURES n Wide Input Votage Range: 4V to 8V n Low Quiescent Current: 4μA n Low Dropout Votage: 4 n Output Current: 25mA n No Protection Diodes Needed n Adjustabe Output from.24v to 6V n μa Quiescent Current

More information

FEATURES APPLICATIONS TYPICAL APPLICATION

FEATURES APPLICATIONS TYPICAL APPLICATION FEATURES n Reguates Whie Sourcing or Sinking Current n Provides Termination for up to 27 SCSI Lines n μa Quiescent Current n Utraow Power Shutdown Mode n Current Limit and Therma Shutdown Protection n

More information

LT1176/LT Step-Down Switching Regulator FEATURES APPLICATIONS DESCRIPTION TYPICAL APPLICATION

LT1176/LT Step-Down Switching Regulator FEATURES APPLICATIONS DESCRIPTION TYPICAL APPLICATION Step-Down Switching Reguator FEATURES n 1.2A Onboard Switch n 100kHz Switching Frequency n Exceent Dynamic Behavior n DIP and Surface Mount Packages n Ony 8mA Quiescent Current n Preset 5 Output Avaiabe

More information

LT3009 Series 3µA I Q, 20mA Low Dropout Linear Regulators DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION

LT3009 Series 3µA I Q, 20mA Low Dropout Linear Regulators DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION LT39 Series 3µA I Q, 2mA Low Dropout Linear Reguators FEATURES n Utraow Quiescent Current: 3μA n Input otage Range: 1. to 2 n Output Current: 2mA n Dropout otage: 28 n Adjustabe Output ( ADJ = OUT(MIN)

More information

LTC Linear Phase 8th Order Lowpass Filter FEATURES APPLICATIONS DESCRIPTION TYPICAL APPLICATION

LTC Linear Phase 8th Order Lowpass Filter FEATURES APPLICATIONS DESCRIPTION TYPICAL APPLICATION LTC69-7 Linear Phase 8th Order Lowpass Fiter FEATURES n 8th Order, Linear Phase Fiter in SO-8 Package n Raised Cosine Ampitude Response n 43 Attenuation at 2 f CUTOFF n Wideband Noise: 4μV RMS n Operates

More information

LTC6652 Precision Low Drift Low Noise Buffered Reference FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION

LTC6652 Precision Low Drift Low Noise Buffered Reference FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION FEATURES n Low Drift: A Grade 5ppm/ C Max B Grade ppm/ C Max n High Accuracy: A Grade ±.5%, B Grade ±.% n Low Noise: ppm p-p (.Hz to Hz) n Fuy Specifi ed Over 4 C to 5 C Temperature Range n Sinks and Sources

More information

LT3065 Series 45V V IN, 500mA Low Noise, Linear Regulator with Programmable Current Limit and Power Good. Applications. Typical Application

LT3065 Series 45V V IN, 500mA Low Noise, Linear Regulator with Programmable Current Limit and Power Good. Applications. Typical Application Features n Input Votage Range: 1.8V to 45V n Output Current: 5mA n Dropout Votage: 3 n Programmabe Precision Current Limit: ±1% n Power Good Fag n Low Noise: 25µV RMS (1Hz to 1kHz) n Adjustabe Output (V

More information

LTC kHz Continuous Time, Linear Phase Lowpass Filter FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION

LTC kHz Continuous Time, Linear Phase Lowpass Filter FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION FEATURES DESCRIPTION n th Order, 0kHz Linear Phase Fiter in an SO- n Differentia Inputs and Outputs n Operates on a Singe or a ± Suppy n Low Offset: m Typica n db THD and SNR n db SNR n Shutdown Mode n

More information

LT V, 200mA, Ultralow Noise, Ultrahigh PSRR RF Linear Regulator APPLICATIONS TYPICAL APPLICATION

LT V, 200mA, Ultralow Noise, Ultrahigh PSRR RF Linear Regulator APPLICATIONS TYPICAL APPLICATION FEATURES n Utraow RMS Noise:.µV RMS (Hz to khz) n Utraow Spot Noise: nv/ Hz at khz n Utrahigh PSRR: 79dB at MHz n Output Current: ma n Wide Input Votage Range:.V to V n Singe Capacitor Improves Noise and

More information

DESCRIPTIO FEATURES APPLICATIO S. LT1129/LT /LT Micropower Low Dropout Regulators with Shutdown TYPICAL APPLICATIO

DESCRIPTIO FEATURES APPLICATIO S. LT1129/LT /LT Micropower Low Dropout Regulators with Shutdown TYPICAL APPLICATIO Micropower Low Dropout Regulators with Shutdown FEATRES.4V Dropout Voltage 7mA Output Current µa Quiescent Current No Protection Diodes Needed Adjustable Output from 3.8V to 3V 3.3V and V Fixed Output

More information

FEATURES DESCRIPTIO TYPICAL APPLICATIO. LT3028 Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulators with. Independent Inputs APPLICATIO S

FEATURES DESCRIPTIO TYPICAL APPLICATIO. LT3028 Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulators with. Independent Inputs APPLICATIO S FEATURES Low Noise: 2µV RMS (1Hz to 1kHz) Low Quiescent Current: 3µA/Output Independent Inputs Wide Input Voltage Range: 1.8V to 2V Output Current: 1mA/5mA Very Low Shutdown Current:

More information

FEATURES DESCRIPTIO TYPICAL APPLICATIO. LT3027 Dual 100mA, Low Dropout, Low Noise, Micropower Regulator with. Independent Inputs APPLICATIO S

FEATURES DESCRIPTIO TYPICAL APPLICATIO. LT3027 Dual 100mA, Low Dropout, Low Noise, Micropower Regulator with. Independent Inputs APPLICATIO S FEATURES Low Noise: 2µV RMS (1Hz to 1kHz) Low Quiescent Current: 25µA/Channel Independent Inputs Wide Input Voltage Range: 1.8V to 2V Output Current: 1mA/Channel Very Low Shutdown Current:

More information

LT1630/LT MHz, 10V/µs, Dual/Quad Rail-to-Rail Input and Output Precision Op Amps. Applications. Typical Application

LT1630/LT MHz, 10V/µs, Dual/Quad Rail-to-Rail Input and Output Precision Op Amps. Applications. Typical Application Features n Gain-Bandwidth Product: 3MHz n Sew Rate: V/µs n Low Suppy Current per Ampifier: 3.5mA n Input Common Mode Range Incudes Both Rais n Output Swings Rai-to-Rai n Input Offset Votage, Rai-to-Rai:

More information

LTC /LTC V Microprocessor Supervisory Circuits APPLICATIONS TYPICAL APPLICATION

LTC /LTC V Microprocessor Supervisory Circuits APPLICATIONS TYPICAL APPLICATION Microprocessor Supervisory Circuits FEATURES n Guaranteed Reset Assertion at = 1 n Pin Compatibe with LTC69/LTC695 for Systems n 2μA Typica Suppy Current n Fast (ns Typ) Onboard Gating of RAM Chip Enabe

More information

LT6658 Precision Dual Output, High Current, Low Noise, Voltage Reference. Applications. Typical Application

LT6658 Precision Dual Output, High Current, Low Noise, Voltage Reference. Applications. Typical Application Features Dua Output Tracking Reference Each Output Configurabe to 6 Output : ma Source/2mA Sink Output 2: ma Source/2mA Sink Low Drift: A-Grade: ppm/ C Max B-Grade: 2ppm/ C Max High Accuracy: A-Grade:

More information

LT1782 Micropower, Over-The-Top SOT-23, Rail-to-Rail Input and Output Op Amp DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION

LT1782 Micropower, Over-The-Top SOT-23, Rail-to-Rail Input and Output Op Amp DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION FEATURES n Operates with Inputs Above n Rai-to-Rai Input and Output n Micropower: Suppy Current Max n Operating Temperature Range: 4 C to 2 C n Low Profie (mm) ThinSOT Package n Low Input Offset otage:

More information

DESCRIPTIO FEATURES TYPICAL APPLICATIO. LT mA, Low Noise, Low Dropout Negative Micropower Regulator in ThinSOT APPLICATIO S

DESCRIPTIO FEATURES TYPICAL APPLICATIO. LT mA, Low Noise, Low Dropout Negative Micropower Regulator in ThinSOT APPLICATIO S 2mA, Low Noise, Low Dropout Negative Micropower Regulator in ThinSOT FEATRES Low Profile (1mm) ThinSOT TM Package Low Noise: 3µV RMS (1Hz to 1kHz) Low Quiescent Current: 3µA Low Dropout Voltage: 34mV Output

More information

AIC mA, 1.2MHz Synchronous Step-Up Converter

AIC mA, 1.2MHz Synchronous Step-Up Converter 700mA, 1.2MHz Synchronous Step-Up Converter FEATURES V IN Start Up Voltage: 0.9V Output Voltage Range: from 2.7V to 5.25V. Up to 94% Efficiency 1.2MHz Fixed Frequency Switching Built-in current mode compensation

More information

AIC1596 3A STEP-DOWN PWM CONVERTER

AIC1596 3A STEP-DOWN PWM CONVERTER 3A STEP-DOWN PWM CONVERTER FEATURES Operating Input Voltage From 4.5V to 30V 3.3V, 5V, 12V and Adjustable Output Version Adjustable Version Output Voltage Range, 1.25V to 30V ± 4% max Over ine and oad

More information

LT1498/LT MHz, 6V/µs, Dual/Quad Rail-to-Rail Input and Output Precision C-Load Op Amps FEATURES DESCRIPTION APPLICATIONS

LT1498/LT MHz, 6V/µs, Dual/Quad Rail-to-Rail Input and Output Precision C-Load Op Amps FEATURES DESCRIPTION APPLICATIONS FEATURES n Rai-to-Rai Input and Output n 475 Max V OS from V + to V n Gain-Bandwidth Product: MHz n Sew Rate: 6V/μs n Low Suppy Current per Ampifi er: 1.7mA n Input Offset Current: 65 Max n Input Bias

More information

LT6203X High Temperature 175 C Dual 100MHz, Rail-to-Rail Input and Output, Ultralow 1.9nV/ Hz Noise, Low Power Op Amp Description

LT6203X High Temperature 175 C Dual 100MHz, Rail-to-Rail Input and Output, Ultralow 1.9nV/ Hz Noise, Low Power Op Amp Description Features Appications LT3X High Temperature 7 C Dua MHz, Rai-to-Rai Input and Output, Utraow.9nV/ Hz Noise, Low Power Op Amp Description Extreme High Temperature Operation: C to 7 C Low Noise Votage:.9nV/

More information

LT6100 Precision, Gain Selectable High Side Current Sense Amplifier. Applications. Typical Application

LT6100 Precision, Gain Selectable High Side Current Sense Amplifier. Applications. Typical Application Features n Input Offset otage: 3µ (Max) n Sense Inputs Up to 8 n.5 Gain Accuracy n Pin Seectabe Gain:, 2.5, 2, 25,, 5/ n Separate Power Suppy: 2.7 to 36 n Operating Current: 6µA n Sense Input Current (

More information

AIC2304 1A Synchronous PWM Step-Down DC/DC Converter

AIC2304 1A Synchronous PWM Step-Down DC/DC Converter 1A Synchronous PWM Step-Down DC/DC Converter FEATURES 2.5V to 5.5V Input Voltage Range 1.0A Guaranteed Output Current Up to 95% Efficiency ow R DS(ON) Internal Switche: 280mΩ No Schottky Diode Required

More information

LTC2050/LTC2050HV Zero-Drift Operational Amplifi ers in SOT-23 DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION

LTC2050/LTC2050HV Zero-Drift Operational Amplifi ers in SOT-23 DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION FEATURES n Maximum Offset Votage of μv n Maximum Offset Votage Drift of nv/ C n Noise:.μV P-P (.Hz to Hz Typ) n Votage Gain: (Typ) n PSRR: (Typ) n CMRR: (Typ) n Suppy Current:.8mA (Typ) n Suppy Operation:.7V

More information

RT A, Low Input Voltage, Ultra-Low Dropout LDO Regulator with Enable. Features. General Description. Applications. Ordering Information

RT A, Low Input Voltage, Ultra-Low Dropout LDO Regulator with Enable. Features. General Description. Applications. Ordering Information RT2516 2A, Low Input Voltage, Ultra-Low Dropout LDO Regulator with Enable General Description The RT2516 is a high performance positive voltage regulator designed for use in applications requiring ultra-low

More information

LT6011/LT6012 Dual/Quad 135µA, 14nV/ Hz, Rail-to-Rail Output Precision Op Amp. Applications. Typical Application

LT6011/LT6012 Dual/Quad 135µA, 14nV/ Hz, Rail-to-Rail Output Precision Op Amp. Applications. Typical Application Features n 6 Maximum Offset Votage n 3 Maximum Input Bias Current n 3µA Suppy Current per Ampifier n Rai-to-Rai Output Swing n 2dB Minimum Votage Gain, V S = ±V n./ C Maximum V OS Drift n 4nV/ Hz Input

More information

LT3070 5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION

LT3070 5A, Low Noise, Programmable Output, 85mV Dropout Linear Regulator FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION FEATURES Output Current: 5A Dropout Votage: 85mV Typica Digitay Programmabe :.8V to 1.8V Digita Output Margining: ±1%, ±3% or ±5% Low Output Noise: 25µV RMS (1Hz to 1kHz) Parae Mutipe Devices for 1A or

More information

Linear LT3086 Cable Drop Compensation Datasheet

Linear LT3086 Cable Drop Compensation Datasheet Linear LT386 Cabe Drop Compensation Datasheet http://www.manuaib.com/inear/t386-cabe-drop-compensation-datasheet.htm The LT 386 is a muti-feature, ow dropout, ow noise.a inear reguator that operates over

More information

AIC2354 1A Synchronous PWM/PSM Step-Down DC/DC Converter

AIC2354 1A Synchronous PWM/PSM Step-Down DC/DC Converter 1A Synchronous PWM/PSM Step-Down DC/DC Converter FEATURES.5V to 5.5V Input Voltage Range 1.0A Guaranteed Output Current Up to 95% Efficiency ow R DS(ON) Internal Switche: 80mΩ No Schottky Diode Required

More information

Low Noise 300mA LDO Regulator General Description. Features

Low Noise 300mA LDO Regulator General Description. Features Low Noise 300mA LDO Regulator General Description The id9301 is a 300mA with fixed output voltage options ranging from 1.5V, low dropout and low noise linear regulator with high ripple rejection ratio

More information

id id mA, Low Dropout, Low Noise Ultra-Fast With Soft Start CMOS LDO Regulator Features General Description Applications

id id mA, Low Dropout, Low Noise Ultra-Fast With Soft Start CMOS LDO Regulator Features General Description Applications 500mA, Low Dropout, Low Noise Ultra-Fast With Soft Start CMOS LDO Regulator General Description The is a 500mA, low dropout and low noise linear regulator with high ripple rejection ratio. It has fixed

More information

DATASHEET. Features. Applications. Related Literature ISL V, Low Quiescent Current, 50mA Linear Regulator. FN7970 Rev 2.

DATASHEET. Features. Applications. Related Literature ISL V, Low Quiescent Current, 50mA Linear Regulator. FN7970 Rev 2. DATASHEET ISL8136 4V, Low Quiescent Current, 5mA Linear Regulator The ISL8136 is a high voltage, low quiescent current linear regulator ideally suited for always-on and keep alive applications. The ISL8136

More information

MP20041 Dual, Ultra Low Noise, High PSRR 300mA Linear Regulator

MP20041 Dual, Ultra Low Noise, High PSRR 300mA Linear Regulator MP20041 Dual, Ultra Low Noise, High PSRR 300mA Linear Regulator DESCRIPTION The MP20041 is a dual-channel, micropower, ultra low noise, low dropout and high PSRR linear regulator. The output voltage of

More information

APPLICATIONS n Driving A/D Converters n Low Voltage Signal Processing n Active Filters n Rail-to-Rail Buffer Amplifi ers n Video Line Driver

APPLICATIONS n Driving A/D Converters n Low Voltage Signal Processing n Active Filters n Rail-to-Rail Buffer Amplifi ers n Video Line Driver FEATURES n 3dB Bandwidth: 3MHz, A V = n Gain-Bandwidth Product: 8MHz, A V n Sew Rate: 3V/μs n Wide Suppy Range:.V to.v n Large Output Current: 8mA n Low Distortion, MHz: 9dBc n Input Common Mode Range

More information

DESCRIPTIO APPLICATIO S TYPICAL APPLICATIO. LT1764 Series 3A, Fast Transient Response, Low Noise, LDO Regulators FEATURES

DESCRIPTIO APPLICATIO S TYPICAL APPLICATIO. LT1764 Series 3A, Fast Transient Response, Low Noise, LDO Regulators FEATURES A, Fast Transient Response, Low Noise, LDO Regulators FEATURES Optimized for Fast Transient Response Output Current: A Dropout Voltage: mv at A Low Noise: µv RMS (Hz to khz) ma Quiescent Current Wide Input

More information

300mA, Micropower, VLDO Linear Regulator UM165XX SOT23-3

300mA, Micropower, VLDO Linear Regulator UM165XX SOT23-3 General Description UM165XX 300mA, Micropower, VLDO Linear Regulator UM165XX SOT23-3 The UM165XX series are VLDO (very low dropout) linear regulators designed for low power portable applications. Typical

More information

LTC4365 UV, OV and Reverse Supply Protection Controller APPLICATIONS TYPICAL APPLICATION

LTC4365 UV, OV and Reverse Supply Protection Controller APPLICATIONS TYPICAL APPLICATION , and Reverse Suppy Protection Controer FEATURES n Wide Operating Votage Range: 2.5V to 34V n Overvotage Protection to 6V n Reverse Suppy Protection to 4V n Bocks 5Hz and 6Hz AC Power n No Input Capacitor

More information

LT3572 Dual Full-Bridge Piezo Driver with 900mA Boost Converter DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION

LT3572 Dual Full-Bridge Piezo Driver with 900mA Boost Converter DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION Dual Full-Bridge Piezo Driver with 900mA Boost Converter FEATURES 2.7V to 0V Input Voltage Range 900mA Boost Converter Dual Full-Bridge Piezo Drivers Up to 00kHz PWM Frequency Programmable Switching Frequency

More information

RT9198/A. 300mA, Low Noise, Ultra-Fast CMOS LDO Regulator. General Description. Ordering Information RT9198/A- Features. Marking Information

RT9198/A. 300mA, Low Noise, Ultra-Fast CMOS LDO Regulator. General Description. Ordering Information RT9198/A- Features. Marking Information RT9198/A 3mA, Low Noise, Ultra-Fast CMOS LDO Regulator General Description The RT9198/A is designed for portable RF and wireless applications with demanding performance and space requirements. The RT9198/A

More information

150mA, Low-Dropout Linear Regulator with Power-OK Output

150mA, Low-Dropout Linear Regulator with Power-OK Output 9-576; Rev ; /99 5mA, Low-Dropout Linear Regulator General Description The low-dropout (LDO) linear regulator operates from a +2.5V to +6.5V input voltage range and delivers up to 5mA. It uses a P-channel

More information

RT9041F. 500mA, Low Voltage, LDO Regulator with External Bias Supply. General Description. Features. Applications. Ordering Information

RT9041F. 500mA, Low Voltage, LDO Regulator with External Bias Supply. General Description. Features. Applications. Ordering Information 500mA, Low Voltage, LDO Regulator with External Bias Supply General Description The is a low voltage, low dropout linear regulator with an external bias supply input. The bias supply drives the gate of

More information

RT mA, Low Input Voltage, Low Dropout, Low Noise Ultra- Fast Without Bypass Capacitor CMOS LDO Regulator. General Description.

RT mA, Low Input Voltage, Low Dropout, Low Noise Ultra- Fast Without Bypass Capacitor CMOS LDO Regulator. General Description. RT9030 150mA, Low Input Voltage, Low Dropout, Low Noise Ultra- Fast Without Bypass Capacitor CMOS LDO Regulator General Description The RT9030 is a high-performance, 150mA LDO regulator, offering extremely

More information

RT9041E. 500mA, Low Voltage, LDO Regulator with External Bias Supply. General Description. Features. Applications. Ordering Information RT9041E-

RT9041E. 500mA, Low Voltage, LDO Regulator with External Bias Supply. General Description. Features. Applications. Ordering Information RT9041E- RT9041E 500mA, Low Voltage, LDO Regulator with External Bias Supply General Description The RT9041E is a low voltage, low dropout linear regulator with an external bias supply input. The bias supply drives

More information

id9309 Ultra-Low Noise Ultra-Fast 300mA LDO Regulator Features

id9309 Ultra-Low Noise Ultra-Fast 300mA LDO Regulator Features Ultra-Low Noise Ultra-Fast 300mA LDO Regulator General Description The id9309 is a 300mA, low dropout and low noise linear regulator with high ripple rejection ratio and fast turn-on time. It has fixed

More information

MP20142 Dual Channel, 200mA Linear Regulator With Programmable Output Voltage and Output Discharge

MP20142 Dual Channel, 200mA Linear Regulator With Programmable Output Voltage and Output Discharge The Future of Analog IC Technology MP20142 Dual Channel, 200mA Linear Regulator With Programmable Output Voltage and Output Discharge DESCRIPTION The MP20142 is a dual-channel, low noise, low dropout and

More information

RT2517B. 1A, 6V, Ultra-Low Dropout Linear Regulator. General Description. Features. Applications. Ordering Information. Marking Information

RT2517B. 1A, 6V, Ultra-Low Dropout Linear Regulator. General Description. Features. Applications. Ordering Information. Marking Information RT2517B 1A, 6V, Ultra-Low Dropout Linear Regulator General Description The RT2517B is a high performance positive voltage regulator designed for use in applications requiring ultralow input voltage and

More information

HEXFET Power MOSFET V DSS = 20V. R DS(on) = 0.045Ω

HEXFET Power MOSFET V DSS = 20V. R DS(on) = 0.045Ω Utra Low On-Resistance N-Channe MOSFET SOT-23 Footprint Low Profie (

More information

HEXFET Power MOSFET V DSS = 20V. R DS(on) = 0.045Ω

HEXFET Power MOSFET V DSS = 20V. R DS(on) = 0.045Ω Utra Low On-Resistance N-Channe MOSFET SOT-23 Footprint Low Profie (

More information

LTC1515 Series Step-Up/Step-Down Switched Capacitor DC/DC Converters with Reset DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION

LTC1515 Series Step-Up/Step-Down Switched Capacitor DC/DC Converters with Reset DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION LTC Series Step-p/Step-Down Switched Capacitor DC/DC Converters with Reset FEATRES Adjustable/Selectable 3V, 3.3V or V Output Voltages V to V Input Voltage Range p to ma Output Current Only Three External

More information

LTC1798 Series Micropower Low Dropout References FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION

LTC1798 Series Micropower Low Dropout References FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION Micropower Low Dropout References FEATURES n mv Max Dropout at ma Output Current n µa Typical Quiescent Current n.% Max Initial Accuracy n No Output Capacitor Required n Output Sources ma, Sinks ma n ppm/

More information

TOP VIEW. OUTPUT PRESET 2.5V TO 5V 200mA SHDN 3 4 BP GND. Maxim Integrated Products 1

TOP VIEW. OUTPUT PRESET 2.5V TO 5V 200mA SHDN 3 4 BP GND. Maxim Integrated Products 1 19-2584; Rev ; 1/2 Low-Noise, Low-Dropout, 2mA General Description The low-noise, low-dropout linear regulator operates from a 2.5V to 6.5V input and delivers up to 2mA. Typical output noise is 3µV RMS,

More information

RT2515A. 2A, Low Input Voltage, Ultra-Low Dropout Linear Regulator with Enable. General Description. Features. Applications

RT2515A. 2A, Low Input Voltage, Ultra-Low Dropout Linear Regulator with Enable. General Description. Features. Applications 2A, Low Input Voltage, Ultra-Low Dropout Linear Regulator with Enable General Description The is a high performance positive voltage regulator designed for use in applications requiring ultralow input

More information

RT2517A. 1A, 6V, Ultra Low Dropout Linear Regulator. General Description. Features. Applications. Ordering Information. Marking Information

RT2517A. 1A, 6V, Ultra Low Dropout Linear Regulator. General Description. Features. Applications. Ordering Information. Marking Information RT2517A 1A, 6V, Ultra Low Dropout Linear Regulator General Description The RT2517A is a high performance positive voltage regulator designed for applications requiring low input voltage and ultra low dropout

More information

LT1881/LT1882 Dual and Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps DESCRIPTION FEATURES

LT1881/LT1882 Dual and Quad Rail-to-Rail Output, Picoamp Input Precision Op Amps DESCRIPTION FEATURES FEATURES n Offset Votage: 5 Maximum (LT88A) n Input Bias Current: 2 Maximum (LT88A) n Offset Votage Drift:.8/ C Maximum n Rai-to-Rai Output Swing n Suppy Range: 2.7V to 36V n Operates with Singe or Spit

More information

RT μA I Q, 300mA Low-Dropout Linear Regulator. General Description. Features. Pin Configuration. Applications

RT μA I Q, 300mA Low-Dropout Linear Regulator. General Description. Features. Pin Configuration. Applications RT978 2μA I Q, 3mA Low-Dropout Linear Regulator General Description The RT978 is a low-dropout (LDO) voltage regulator with enable function that operates from 1.2V to 5.5V. It provides up to 3mA of output

More information

PART MAX1658C/D MAX1659C/D TOP VIEW

PART MAX1658C/D MAX1659C/D TOP VIEW 19-1263; Rev 0; 7/97 350mA, 16.5V Input, General Description The linear regulators maximize battery life by combining ultra-low supply currents and low dropout voltages. They feature Dual Mode operation,

More information

RT A, Ultra-Low Dropout Voltage Regulator. General Description. Features. Applications. Pin Configurations. Ordering Information

RT A, Ultra-Low Dropout Voltage Regulator. General Description. Features. Applications. Pin Configurations. Ordering Information RT9059 3A, Ultra-Low Dropout Voltage Regulator General Description The RT9059 is a high performance positive voltage regulator designed for use in applications requiring very low input voltage and very

More information

RT mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator. General Description. Features. Applications. Ordering Information. Marking Information

RT mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator. General Description. Features. Applications. Ordering Information. Marking Information 3mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator General Description The is designed for portable RF and wireless applications with demanding performance and space requirements. The performance is optimized

More information

Enpirion Power Datasheet EY V, Low Quiescent Current, 50mA Linear Regulator

Enpirion Power Datasheet EY V, Low Quiescent Current, 50mA Linear Regulator Enpirion Power Datasheet EY162 4V, Low Quiescent Current, 5mA Linear Regulator DS-146 Datasheet The Altera Enpirion EY162 is a wide input voltage range, low quiescent current linear regulator ideally suited

More information

RT mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator. General Description. Features. Applications. Ordering Information. Marking Information

RT mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator. General Description. Features. Applications. Ordering Information. Marking Information 3mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator General Description The RT9193 is designed for portable RF and wireless applications with demanding performance and space requirements. The RT9193 performance

More information

LTC6702 Tiny Micropower, Low Voltage Dual Comparators DESCRIPTION FEATURES

LTC6702 Tiny Micropower, Low Voltage Dual Comparators DESCRIPTION FEATURES LTC672 Tiny Micropower, Low Votage Dua Comparators FEATURES n Low Suppy Operation:.7V Minimum n Low Suppy Current: 3μA/Comparator Maximum n Propagation Deay: ns Maximum ( C to 2 C) n 3.2MHz Togge Frequency

More information

MAX8863T/S/R, MAX8864T/S/R. Low-Dropout, 120mA Linear Regulators. General Description. Benefits and Features. Ordering Information.

MAX8863T/S/R, MAX8864T/S/R. Low-Dropout, 120mA Linear Regulators. General Description. Benefits and Features. Ordering Information. General Description The MAX8863T/S/R and low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 12mA. A PMOS pass transistor allows the low, 8μA supply current to remain

More information

HEXFET Power MOSFET V DSS = 100V. R DS(on) = 23mΩ I D = 57A

HEXFET Power MOSFET V DSS = 100V. R DS(on) = 23mΩ I D = 57A Advanced Process Technoogy Utra Low On-Resistance Dynamic dv/dt Rating 175 C Operating Temperature Fast Switching Fuy Avaanche Rated Lead-Free Description Advanced HEXFET Power MOSFETs from Internationa

More information

RT A, Ultra-Low Dropout Voltage Regulator. General Description. Features. Applications. Pin Configurations. Ordering Information RT9059(- )

RT A, Ultra-Low Dropout Voltage Regulator. General Description. Features. Applications. Pin Configurations. Ordering Information RT9059(- ) RT9059 3A, Ultra-Low Dropout Voltage Regulator General Description The RT9059 is a high performance positive voltage regulator designed for use in applications requiring very low input voltage and very

More information

HEXFET Power MOSFET V DSS = 20V. R DS(on) = 0.045Ω

HEXFET Power MOSFET V DSS = 20V. R DS(on) = 0.045Ω Utra Low On-Resistance N-Channe MOSFET SOT-23 Footprint Low Profie (

More information

MP2002 Low Input Voltage 500mA Linear Regulator

MP2002 Low Input Voltage 500mA Linear Regulator The Future of Analog IC Technology DESCRIPTION The MP2002 is a low-current, low-dropout linear regulator operating over a single input supply between.v to.v. The output voltage of the MP2002 is adjustable

More information

Ultra-Low Noise Ultra-Fast 300mA LDO Regulator. Features

Ultra-Low Noise Ultra-Fast 300mA LDO Regulator. Features Ultra-Low Noise Ultra-Fast 300mA LDO Regulator General Description The is a 300mA, low dropout and low noise linear regulator with high ripple rejection ratio and fast turn-on time. It offers 1% initial

More information

FEATURES n Low Noise Voltage: 0.95nV/ Hz (100kHz) n Gain Bandwidth Product: LT6200/LT MHz A V = 1 LT MHz A V 5 LT GHz A V 10

FEATURES n Low Noise Voltage: 0.95nV/ Hz (100kHz) n Gain Bandwidth Product: LT6200/LT MHz A V = 1 LT MHz A V 5 LT GHz A V 10 FEATURES n Low Noise Votage:.9nV/ Hz (khz) n Gain Bandwidth Product: LT6/LT6 6MHz A V = LT6- MHz A V LT6-.6GHz A V n Low Distortion: at MHz, R L = Ω n Dua LT6 in Tiny DFN Package n Input Common Mode Range

More information

50 ma, High Voltage, Micropower Linear Regulator ADP1720

50 ma, High Voltage, Micropower Linear Regulator ADP1720 5 ma, High Voltage, Micropower Linear Regulator ADP72 FEATURES Wide input voltage range: 4 V to 28 V Maximum output current: 5 ma Low light load current: 28 μa at μa load 35 μa at μa load Low shutdown

More information

RT mA Dual LDO Regulator. General Description. Features. Applications. Ordering Information. Pin Configurations (TOP VIEW) Marking Information

RT mA Dual LDO Regulator. General Description. Features. Applications. Ordering Information. Pin Configurations (TOP VIEW) Marking Information RT9055 300mA Dual LDO Regulator General Description The RT9055 is a dual channel, low noise, and low dropout regulator sourcing up to 300mA at each channel. The output voltage range is from 0.9V to 3.5V

More information

RT9041A/B. 500mA, Low Voltage, LDO Regulator with External Bias Supply. General Description. Features. Applications. Ordering Information

RT9041A/B. 500mA, Low Voltage, LDO Regulator with External Bias Supply. General Description. Features. Applications. Ordering Information RT9041A/B 500mA, Low Voltage, LDO Regulator with External Bias Supply General Description The RT9041A/B are low voltage, low dropout linear regulators with an external bias supply input. The bias supply

More information

Distributed by: www.jameco.com -8-83-4242 The content and copyrights of the attached material are the property of its owner. FEATRES Regulates While Sourcing or Sinking Current Provides Termination for

More information

LTC3260 Low Noise Dual Supply Inverting Charge Pump APPLICATIONS TYPICAL APPLICATION

LTC3260 Low Noise Dual Supply Inverting Charge Pump APPLICATIONS TYPICAL APPLICATION LTC Low Noise Dual Supply Inverting Charge Pump FEATURES n V IN Range:.V to V n Inverting Charge Pump Generates V IN n Charge Pump Output Current Up to ma n Low Noise Negative LDO Post Regulator (I LDO

More information

RT2517B. 1A, 6V, Ultra-Low Dropout Linear Regulator. Features. General Description. Applications. Ordering Information. Marking Information

RT2517B. 1A, 6V, Ultra-Low Dropout Linear Regulator. Features. General Description. Applications. Ordering Information. Marking Information Sample & Buy 1A, 6V, Ultra-Low Dropout Linear Regulator General Description The is a high performance positive voltage regulator designed for use in applications requiring ultralow input voltage and ultra-low

More information

MP2013A 40V, 150mA, Low-Quiescent Current Linear Regulator

MP2013A 40V, 150mA, Low-Quiescent Current Linear Regulator The Future of Analog IC Technology DESCRIPTION The MP2013A is a low-power, linear regulator that supplies power to systems with highvoltage batteries. It includes a wide 2.5V to 40V input range, low-dropout

More information

RT mA, Low Input Voltage, Low Dropout, Low Noise Ultra- Fast Without Bypass Capacitor CMOS LDO Regulator. General Description.

RT mA, Low Input Voltage, Low Dropout, Low Noise Ultra- Fast Without Bypass Capacitor CMOS LDO Regulator. General Description. Applications CDMA/GSM Cellular Handsets Portable Information Appliances Laptop, Palmtops, Notebook Computers Hand-Held Instruments Mini PCI & PCI-Express Cards PCMCIA & New Cards RT9030 150mA, Low Input

More information

MP2494 2A, 55V, 100kHz Step-Down Converter

MP2494 2A, 55V, 100kHz Step-Down Converter The Future of Analog IC Technology MP2494 2A, 55V, 100kHz Step-Down Converter DESCRIPTION The MP2494 is a monolithic step-down switch mode converter. It achieves 2A continuous output current over a wide

More information

RT μA I Q, 250mA Low-Dropout Linear Regulator. General Description. Features

RT μA I Q, 250mA Low-Dropout Linear Regulator. General Description. Features RT9073 1μA I Q, 250mA Low-Dropout Linear Regulator General Description The RT9073 is a low-dropout (LDO) voltage regulators with enable function that operates from 1.2V to 5.5V. It provides up to 250mA

More information

RT9187C. 600mA, Ultra-Low Dropout, CMOS Regulator. General Description. Features. Applications. Ordering Information. Pin Configurations (TOP VIEW)

RT9187C. 600mA, Ultra-Low Dropout, CMOS Regulator. General Description. Features. Applications. Ordering Information. Pin Configurations (TOP VIEW) 600mA, Ultra-Low Dropout, CMOS Regulator General Description The is a high-performance, 600mA LDO regulator, offering extremely high PSRR and ultra-low dropout. This chip is ideal for portable RF and wireless

More information

LT2178/LT µA Max, Dual and Quad, Single Supply, Precision Op Amps DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION

LT2178/LT µA Max, Dual and Quad, Single Supply, Precision Op Amps DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION FEATURES n SO Package with Standard Pinout n Suppy Current per Ampifi er: 7μA Max n Offset otage: 7μ Max n Offset Current: 25pA Max n Input Bias Current: 5nA Max n otage Noise:.9μ P-P,.Hz to Hz n Current

More information

MP2009 Ultra-Low-Noise Low-Dropout, 120mA Linear Regulator

MP2009 Ultra-Low-Noise Low-Dropout, 120mA Linear Regulator MP2009 Ultra-Low-Noise Low-Dropout, 120mA Linear Regulator DESCRIPTION The MP2009 is an ultra low noise, low dropout linear regulator. The output voltage of MP2009 ranges from 1.5V to 4.5V in 100mV increments

More information

RT V, 2μA, I Q, 100mA Low Dropout Voltage Linear Regulator. General Description. Features. Ordering Information RT2558- Applications

RT V, 2μA, I Q, 100mA Low Dropout Voltage Linear Regulator. General Description. Features. Ordering Information RT2558- Applications RT2558 36V, 2μA, I Q, 100mA Low Dropout Voltage Linear Regulator General Description The RT2558 is a high voltage linear regulator offering the benefits of high input voltage, low dropout voltage, low

More information

RTQ2569-QA. 200mA, 36V, 2 A IQ, Low Dropout Voltage Linear Regulator. Features. General Description. Applications

RTQ2569-QA. 200mA, 36V, 2 A IQ, Low Dropout Voltage Linear Regulator. Features. General Description. Applications 200mA, 36V, 2 A IQ, Low Dropout Voltage Linear Regulator General Description Features The RTQ2569 is a high input voltage (36V), low quiescent current (2 A), low-dropout linear regulator (LDO) capable

More information

RTQ2516-QT. 2A, Low Input Voltage, Ultra-Low Dropout LDO Regulator with Enable. General Description. Features. Applications. Ordering Information

RTQ2516-QT. 2A, Low Input Voltage, Ultra-Low Dropout LDO Regulator with Enable. General Description. Features. Applications. Ordering Information RTQ2516-QT 2A, Low Input Voltage, Ultra-Low Dropout LDO Regulator with Enable General Description The RTQ2516 is a high performance positive voltage regulator designed for use in applications requiring

More information

OUTPUT UP TO 300mA C2 TOP VIEW FAULT- DETECT OUTPUT. Maxim Integrated Products 1

OUTPUT UP TO 300mA C2 TOP VIEW FAULT- DETECT OUTPUT. Maxim Integrated Products 1 19-1422; Rev 2; 1/1 Low-Dropout, 3mA General Description The MAX886 low-noise, low-dropout linear regulator operates from a 2.5 to 6.5 input and is guaranteed to deliver 3mA. Typical output noise for this

More information

AIC1841/2 High Efficiency 1.5X charge Pump For White LEDs Backlighting

AIC1841/2 High Efficiency 1.5X charge Pump For White LEDs Backlighting High Efficiency.5X charge Pump For White EDs Backlighting FEATURES MHz Switching Frequency.7V to 5.5V Input Voltage Range ow Shutdown Current: μa Regulated 0mA Full-Scale Output Current 3-Position inear

More information

LT V, Ultralow Noise, Precision Op Amp. Applications. Typical Application Precision Low Noise Buffer

LT V, Ultralow Noise, Precision Op Amp. Applications. Typical Application Precision Low Noise Buffer LT618 36V, Utraow Noise, Precision Op Amp Features Utraow Votage Noise 3nV P-P Noise:.1Hz to 1Hz 1.2nV/ Hz Typica at Hz Maximum Offset Votage: μv Maximum Offset Votage Drift:.μV/ C CMRR: 124 (Minimum)

More information

LTC2053/LTC2053-SYNC Precision, Rail-to-Rail, Zero-Drift, Resistor-Programmable Instrumentation Amplifier. Applications. Typical Application

LTC2053/LTC2053-SYNC Precision, Rail-to-Rail, Zero-Drift, Resistor-Programmable Instrumentation Amplifier. Applications. Typical Application Features n CMRR Independent of Gain n Maximum Offset Votage: µv n Maximum Offset Votage Drift: nv/ C n Rai-to-Rai Input n Rai-to-Rai Output n -Resistor Programmabe Gain n Suppy Operation:.V to ±.V n Typica

More information

MP20051 Low Noise, High PSRR, 1A Linear Regulator

MP20051 Low Noise, High PSRR, 1A Linear Regulator The Future of Analog IC Technology DESCRIPTION The MP20051 is a low-dropout linear regulator that supplies up to 1A current with a 140m dropout voltage. The externally-adjustable output voltage has a range

More information

RT9187B. 600mA, Ultra-Low Dropout, Ultra-Fast CMOS LDO Regulator. General Description. Features. Applications. Ordering Information RT9187B

RT9187B. 600mA, Ultra-Low Dropout, Ultra-Fast CMOS LDO Regulator. General Description. Features. Applications. Ordering Information RT9187B 6mA, Ultra-Low Dropout, Ultra-Fast CMOS LDO Regulator General Description The is a high-performance, 6mA LDO regulator, offering extremely high PSRR and ultra-low dropout. This chip is ideal for portable

More information

MP62130/MP V/5V, Single-Channel 500mA Current-Limited Power Distribution Switch with Output Discharge

MP62130/MP V/5V, Single-Channel 500mA Current-Limited Power Distribution Switch with Output Discharge The Future of Analog IC Technology MP6230/MP623 3.3V/5V, Single-Channel 500mA Current-Limited Power Distribution Switch with Output Discharge DESCRIPTION The MP6230/MP623 Power Distribution Switch features

More information

LT1815/LT1816/LT1817 Single/Dual/Quad 220MHz, 1500V/µs Operational Amplifiers with Programmable Supply Current FEATURES DESCRIPTION

LT1815/LT1816/LT1817 Single/Dual/Quad 220MHz, 1500V/µs Operational Amplifiers with Programmable Supply Current FEATURES DESCRIPTION LT8/LT86/LT87 Singe/Dua/Quad 22, /µs Operationa Ampifiers with Programmabe Suppy Current FEATURES DESCRIPTION n 22 Gain-Bandwidth Product n /μs Sew Rate n 6. Suppy Current per Ampifi er n Programmabe Current

More information

MP20045 Low Noise, 1A Linear Regulator

MP20045 Low Noise, 1A Linear Regulator MP20045 Low Noise, 1A Linear Regulator DESCRIPTION The MP20045 is a low-dropout linear regulator supplies up to 1A current with 140mV dropout voltage. The output voltage is set externally which ranges

More information

TOP VIEW. OUTPUT 1.5V TO 3.3V AT 200mA MAX8532 MAX8532EBT

TOP VIEW. OUTPUT 1.5V TO 3.3V AT 200mA MAX8532 MAX8532EBT 19-2733; Rev 1; 2/12 EVALUATION KIT AVAILABLE General Description The offers the benefits of low-dropout voltage and ultra-low power regulation in a subminiaturized UCSP, making it ideal for space-restricted

More information

RT mA, Low Dropout, Low Noise Ultra-Fast Without Bypass Capacitor CMOS LDO Regulator. Features. General Description.

RT mA, Low Dropout, Low Noise Ultra-Fast Without Bypass Capacitor CMOS LDO Regulator. Features. General Description. 5mA, Low Dropout, Low Noise Ultra-Fast Without Bypass Capacitor CMOS LDO Regulator General Description The RT913 is a high-performance, 5mA LDO regulator, offering extremely high PSRR and ultra-low dropout.

More information

MPQ8904 Industrial/Automotive-Grade 500mA Linear Regulator AEC-Q100 Qualified

MPQ8904 Industrial/Automotive-Grade 500mA Linear Regulator AEC-Q100 Qualified The Future of Analog IC Technology DESCRIPTION The MPQ90 is a low-current, low-dropout, linear regulator that operates on a single 2.Vto-.V input supply. An external resistor controls the output voltage.

More information