Features. 7V 40V Unregulated DC Input 1 +V IN + C IN
|
|
- Magnus Webb
- 6 years ago
- Views:
Transcription
1 LM76 khz Simple 3A Buck Regulator General Description The LM76 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator. Fixed versions are available with a 3.3V, V, or 1V fixed output. Adjustable versions have an output voltage range from 1.3V to 37V. Both versions are capable of driving a 3A load with excellent line and load regulation. These regulators are simple to use because they require a minimum number of external components and include internal frequency compensation and a fixed-frequency oscillator. The LM76 series offers a high efficiency replacement for popular three-terminal adjustable linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required. A standard series of inductors available from several different manufacturers are ideal for use with the LM76 series. This feature greatly simplifies the design of switch-mode power supplies. The feedback voltage is guaranteed to ±% tolerance for adjustable versions, and the output voltage is guaranteed to ±3% for fixed versions, within specified input voltages and output load conditions. The oscillator frequency is guaranteed to ±1%. External shutdown is included, featuring less than µa standby current. The output switch includes cycle-bycycle current limiting and thermal shutdown for full protection under fault conditions. Features 3.3V, V, 1V, and adjustable output versions Voltage over specified line and load conditions: Fixed version: ±3% max. output voltage Adjustable version: ±% max. feedback voltage Guaranteed 3A output current Wide input voltage range: V to V Wide output voltage range 1.3V to 37V Requires only external components khz fixed frequency internal oscillator Low power standby mode I Q typically < µa 8% efficiency (adjustable version typically > 8%) Uses readily available standard inductors Thermal shutdown and current limit protection 1% electrical thermal limit burn-in Applications Simple high-efficiency step-down (buck) regulator Efficient pre-regulator for linear regulators On-card switching regulators Positive to negative converter (inverting Buck-Boost) Isolated Flyback Converter using minimum number of external components Negative Boost Converter Typical Applications 7V V Unregulated DC Input 1 V IN C IN 1µF 3 Gnd LM7-. On/Off Feedback Output L1 33µH D1 1N8 V, 1A Regulated Output C OUT 33µF 7V V Unregulated DC Input 1 V IN C IN 1µF 3 Gnd LM7 On/Off Feedback Output L1 33µH D1 1N8 C OUT 33µF V, 1A Regulated Output R 3.9k R1 1k Note: Pin numbers are for TO- Package Note: Pin numbers are for TO- Package ( ) V R OUT = R1 Fixed Regulator in Typical Application Adjustable Regulator in Fixed Output Application 18 Fortune Drive San Jose, CA 9131 USA tel 1 (8) 9-8 fax 1 (8) August 1 M B
2 Ordering Information Part Number Temperature Standard RoHS Compliant** Range Package LM76BT* LM76WT* C to 8 C TO-- LM76-3.3BT LM76-3.3WT C to 8 C TO-- LM76-.BT LM76-.WT C to 8 C TO-- LM76-1BT LM76-1WT C to 8 C TO-- LM76BU* LM76WU* C to 8 C TO-63- LM76-3.3BU LM76-3.3WU C to 8 C TO-63- LM76-.BU LM76-.WU C to 8 C TO-63- LM76-1BU LM76-1WU C to 8 C TO-63- * Adjustable output regulators. **RoHS compliant with "hot-melting solder" exemption. Contact factory for bent or staggered leads option. Pin Configurations GND -LEAD TO- (T) - ON/OFF - FEEDBACK 3- GROUND - OUTPUT 1- VIN GND -LEAD TO-63 (U) - ON/OFF - FEEDBACK 3- GROUND - OUTPUT 1- VIN M B August
3 Absolute Maximum Ratings (Note 1) Maximum Supply Voltage V ON/OFF Pin Input Voltage.3V V V Output Voltage to Ground (Steady State) 1V Power Dissipation Internally Limited Storage Temperature Range 6 C to 1 C Minimum ESD Rating C = 1pF, R = 1.kΩ kv FB Pin 1 kv Lead Temperature (soldering, 1 sec.) 6 C Maximum Junction Temperature 1 C Operating Ratings Temperature Range Supply Voltage C T J 1 C V Electrical Characteristics Specifications with standard typeface are for T J = C, and those with boldface type apply over full Operating Temperature Range. Unless otherwise specified, V IN = 1V, and I LOAD = ma. LM76 Symbol Parameter Conditions Typ Limit Units (Note ) (Limits) SYSTEM PARAMETERS, ADJUSTABLE REGULATORS (Note 3) Test Circuit Figure 1 Feedback Voltage V IN = 1V, I LOAD =.A 1.3 V = V 1.17 V(min) 1.3 V(max) Feedback Voltage.A I LOAD 3A, 8V V IN V 1.3 V LM76 = V 1.193/1.18 V(min) 1.67/1.8 V(max) η Efficiency V IN = 1V, I LOAD = 3A, = V 8 % SYSTEM PARAMETERS, 3.3V REGULATORS (Note 3) Test Circuit Figure 1 Output Voltage V IN = 1V, I LOAD =.A 3.3 V = 3.3V 3.3 V(min) V(max) Output Voltage.A I LOAD 3A, 6V V IN V 3.3 V LM = 3.3V 3.168/3.13 V(min) 3.3/3.6 V(max) η Efficiency V IN = 1V, I LOAD = 3A 7 % SYSTEM PARAMETERS, V REGULATORS (Note 3) Test Circuit Figure 1 Output Voltage V IN = 1V, I LOAD =.A. V = V.9 V(min).1 V(max) Output Voltage.A I LOAD 3A, 8V V IN V. V LM76-. = V.8/.7 V(min)./. V(max) η Efficiency V IN = 1V, I LOAD = 3A 8 % SYSTEM PARAMETERS, 1V REGULATORS (Note 3) Test Circuit Figure 1 Output Voltage V IN = V, I LOAD =.A 1 V = 1V V(min) 1. V(max) Output Voltage.A I LOAD 3A, 1V V IN V 1 V LMLM76-1 = 1V 11./11. V(min) 1.8/1.6 V(max) η Efficiency V IN = V, I LOAD = 3A 88 % August 3 M B
4 Electrical Characteristics (continued) LM76 Units Symbol Parameter Conditions Typ Limit (Limits) (Note ) DEVICE PARAMETERS, ADJUSTABLE REGULATOR I B Feedback Bias Current = V 1/ na DEVICE PARAMETERS, FIXED and ADJUSTABLE REGULATORS f O Oscillator Frequency khz 7/ khz (min) 8/63 khz (max) V SAT Saturation Voltage I OUT = 3A (Note ) 1. V 1.8/. V(max) DC Max Duty Cycle (ON) (Note ) 98 % 93 %(min) I CL Current Limit Peak Current, t ON 3µs (Note ).8 A./3. A(min) 6.9/7. A(max) I L Output Leakage Current V IN = V, (Note 6), Output = V ma(max) Output = 1V 7. ma (Note 6) Output = 1V 3 ma(max) I Q Quiescent Current (Note 6) ma 1 ma(max) I STBY Standby Quiescent ON/OFF Pin = V (OFF) µa Current µa(max) θ JA Thermal Resistance T,U Package, Junction to Ambient (Note 7) 6 C/W θ JA T,U Package, Junction to Ambient (Note 8) θ JC T,U Package, Junction to Case M B August
5 Electrical Characteristics (continued) LM76 Units Symbol Parameter Conditions Typ Limit (Limits) (Note ) ON/OFF CONTROL, FIXED and ADJUSTABLE REGULATORS Test Circuit Figure 1 V IH ON/OFF Pin Logic = V 1../. V(min) V IL Input Level = V 1. 1./.8 V(max) I IH ON /OFF Pin Logic ON /OFF Pin = V (OFF) µa Current 3 µa(max) I IL ON/OFF Pin = V (ON).1 µa 1 µa(max) Note 1: Absolute Maximum Rating indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. Note : All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold type face). All room temperature limits are 1% production tested. All limits at temperature extreme are guaranteed via testing. Note 3: External components such as the catch diode, inductor, input and output capacitors can affect switching regulator system performance. When the LM76/LM176 is used as shown in Figure 1 test circuit, system performance will be shown in system parameters section of Electrical Characteristics. Note : Output (pin ) sourcing current. No diode, inductor or capacitor connected to output. Note : Feedback (pin ) removed from output and connected to V. Note 6: Feedback (pin ) removed from output and connected to 1V to force the output transistor OFF. Note 7: Junction to ambient thermal resistance (no external heat sink) for the -lead TO- package mounted vertically, with 1/" leads in a socket, or on PC board with minimum copper area. Note 8: Junction to ambient thermal resistance (no external heat sink) for the -lead TO- package mounted vertically, with 1/" leads soldered to PC board containing approximately square inches of copper area surrounding the leads. Note 9: Junction to ambient thermal resistance with approximately 1 square inch of pc board copper surrounding the leads. Additional copper will lower thermal resistance further. Typical Performance Characteristics NORMALIZED FEEDBACK VOLTAGE (mv) Normalized Feedback Voltage* V IN = 1V I LOAD = ma Normalized to T J = C FEEDBACK VOLTAGE CHANGE (mv) Feedback Voltage vs Duty Cycle* ILOAD = ma VIN = 7V VIN = V DUTY CYCLE (%) * Adjustable version only August M B
6 Typical Performance Characteristics (continued) (Circuit of Figure 1) Supply Current Supply Current vs. Duty Cycle Standby Quiescent Current SUPPLY CURRENT (ma) Measured at 18 Ground Pin T J = C 16 = V I LOAD to 1A SUPPLY CURRENT (ma) I LOAD = ma.. V IN from 7V to V STANDBY QUIESCENT CURRENT (µa) V IN = V V ON/OFF = V V IN = 1V INPUT VOLTAGE (V) DUTY CYCLE (%) OUTPUT CURRENT (A) 3 1 Current Limit VI N = V SATURATION VOLTAGE (V) 1. Switch Saturation Voltage 1. - C - C.8 C.6 1 C 1 C EFFICIENCY (%) Efficiency = 1V 1A ma ma 1A = 3V SWITCH CURRENT (A) INPUT VOLTAGE (V) Minimum Operating Voltage Line Regulation Feedback Pin Current INPUT VOLTAGE (V) = 1.3V 1. I LOAD = ma NORMALIZED FEEDBACK VOLTAGE (mv) 1 1 Normalized to V IN = 1V V 1 OUT = V I 8 LOAD = ma T J = INPUT VOLTAGE (V) STANDBY QUIESCENT CURRENT (µa) OUTPUT VOLTAGE CHANGE (mv) Normalized Output Voltage VIN = 1V ILOAD = ma Normalized to TJ = C NORMALIZED FREQUENCY (%) Oscillator Frequency 8 Normalized at C 6 - V IN = V V IN = 1V INPUT-OUTPUT DIFFERENTIAL (V) Dropout Voltage ILOAD = 1A I LOAD = ma VOUT = % RIND =.Ω M B 6 August
7 Typical Performance Characteristics (Circuit of Figure 1) Load Transient Response 1mV Output Voltage Change -1mV 3A Output Current A 1A 1 µs/div. A B C D V A A A A Switching Waveforms µs/div. = V V IN = V A: Output pin voltage V/div B: Output pin current A/div C: Inductor current A/div D: Output ripple voltage mv/div., AC coupled Horizontal Time Base: µs/div August 7 M B
8 Test Circuits and Layout Guidelines FEEDBACK 7V - V UNREGULATED DC INPUT V IN 1 µf C IN 1 LM7 GND 3 ON/OFF OUTPUT L1 33 µh D1 MBR36 C OUT 7µF R R1.V L O A D C IN 1µF, 7V Aluminum Electrolytic C OUT 7µF, 1V Aluminum Electrolytic D1 Schottky, MBR36 L1 33µH, 1-96 (AIE) R1 1k,.1% R 3.6k,.1% -pin TO- socket 936 (Loranger Mfg. Co.) -pin TO-3 socket 811-AG7 (Augat Inc.) FEEDBACK 7V - V UNREGULATED DC INPUT V IN 1 µf C IN 1 LM7-. GND 3 ON/OFF OUTPUT L1 33 µh D1 11DQ6 C OUT µf.v L O A D C IN 1µF, 7V Aluminum Electrolytic C OUT 33µF, 1V Aluminum Electrolytic D1 Schottky, 11DQ6 L1 1µH, 1-96 (AIE) -pin TO- socket 936 (Loranger Mfg. Co.) -pin TO-3 socket 811-AG7 (Augat Inc.) Note: Pin numbers are for TO- Package Figure 1. As in any switching regulator, layout is very important. Rapidly switching currents associated with wiring inductance generate voltage transients which can cause problems. For minimal stray inductance and ground loops, the length of the leads indicated by heavy lines should be kept as short as possible. Single-point grounding (as indicated) or ground plane construction should be used for best results. Block Diagrams V IN 1 INTERNAL REGULATOR ON/OFF ON/OFF V IN 1 INTERNAL REGULATOR ON/OFF ON/OFF FEED- BACK 3.1k 1.k - FIXED GAIN ERROR AMP - COMPARATOR DRIVER 3 AMP SWITCH OUTPUT FEED- BACK - FIXED GAIN ERROR AMP - COMPARATOR DRIVER 3 AMP SWITCH OUTPUT 1.3V BAND-GAP REFERENCE khz OSCILLATOR RESET THERMAL SHUTDOWN CURRENT LIMIT 3 GND 1.3V BAND-GAP REFERENCE khz OSCILLATOR RESET THERMAL SHUTDOWN CURRENT LIMIT 3 GND Note: Pin numbers are for the TO- package Fixed Regulator Adjustable Regulator M B 8 August
9 Package Information.18 ±. (.7 ±.13).1 D ±. (3.81 D ±.13). ±.1 (1.16 ±.38).1 ±.17 (6.1 ±.3).177 ±.8 (. ±.). ±. (1.7 ±.13).78 ±.18 (1.68 ±.6) SEATING PLANE. ±.1 (13.97 ±.) 7 Typ..67 ±. (1.7 ±.17).68 REF (6.81 REF).3 ±. (.81 ±.13).18 ±.8 (.6 ±.).13 ±.13 (.6±.33) Dimensions: inch (mm) -Lead TO- (T).6 ±.1 ±.±..±..176 ±..6 ±..36±..6±. SEATING.. PLANE.8.67±..3 ±.3 DIM. = INCH 8 MAX.1 ±.1.1 ±. -Lead TO-63 (U) MICREL INC. 18 FORTUNE DRIVE SAN JOSE, CA 9131 USA TEL 1 (8) 9-8 FAX 1 (8) 7-1 WEB This information furnished by Micrel in this data sheet is believed to be accurate and reliable. However no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. Micrel, Incorporated. August 9 M B
10 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Micrel: LM76-.WU LM76WU LM76WT LM76-1WU LM76-3.3WU LM76-.WT LM76WU TR LM76-1WT LM76WU-TR Microchip: LM76-.WU-TR LM76-3.3WU-TR LM76-1WU-TR
LM2576/LM2576HV Series 3A Step-Down Switching Regulator
/H /H Series 3A Step-Down Switching Regulator DESCRIPTION The series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable
More informationFeatures V IN LM2574 OUT PWR GND SIG GND ON/ 11DQ05 OFF. Figure 1. Fixed Output Regulator Circuit
52kHz Simple.5A Buck Regulator General Description The family is a series of easy to use fixed and adjustable switching voltage regulators. The contains all of the active circuitry necessary to construct
More informationD2576. DMS2576 Series 3A Step-Down Voltage Regulator. Description. Features. Applications. 1 Power Mos Microelectronic Limited
DMS2576 Series 3A Step-Down oltage Regulator Description The DMS2576 series of regulators are mono-lithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator,
More informationLM2596 3A Step-Down Voltage Regulator
LM296 3A Step-Down oltage Regulator GENARAL DESCRIPTION The LM296 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator,
More informationLM2596 SIMPLE SWITCHER Power Converter 150 khz 3A Step-Down Voltage Regulator
SIMPLE SWITCHER Power Converter 150 khz 3A Step-Down Voltage Regulator General Description The series of regulators are monolithic integrated circuits that provide all the active functions for a step-down
More informationLM2596 SIMPLE SWITCHER Power Converter 150 khz 3A Step-Down Voltage Regulator
LM2596 SIMPLE SWITCHER Power Converter 150 khz 3A Step-Down Voltage Regulator General Description The LM2596 series of regulators are monolithic integrated circuits that provide all the active functions
More informationSP3613. Order Information PIN CONFIGURATIONN PIN NAME DISCRIPTION TYPICAL APPLICATION. 1 VIN Input
60, 3A STEP DOWN OLTAGE SWITCHING REGULATOR DESCRIPTION The SP3613 series is designed to provide all the active function for a step-down (buck) switching regulator, and drives a maximum load current as
More informationMIC4575. Features. General Description. Applications. Typical Application. 200kHz Simple 1A Buck Regulator
00kHz Simple 1A Buck Regulator General Description The is a series of easy to use fixed and adjustable BiCMOS step-down (buck) switch-mode voltage regulators. The 00kHz duplicates the pinout and function
More informationAT2596 3A Step Down Voltage Switching Regulators
FEATURES Standard PSOP-8/TO-220-5L /TO-263-5L Package Adjustable Output Versions Adjustable Version Output Voltage Range 1.23V to 37V V OUT Accuracy is to ± 3% Under Specified Input Voltage the Output
More information2.5A 150KHZ PWM Buck DC/DC Converter TD1507. Features
General Description The TD1507 is a easy to use adjustable step-down (buck) switch-mode voltage regulators. The device is available in an adjustable output version. It is capable of driving a 2.5A load
More informationGM7230 GM7230V1.01. Description. Features. Application. Typical Application Circuits. 150KHz, 3A STEP DOWN VOLTAGE SWITCHING REGULATORS
Description Features GM730 series is designed to provide all the active function for a step-down (buck) switching regulator, and drives a maximum load current as high as A line and load regulations. GM730
More information3A, 52kHz, Step-down Switching Regulator LM2576HV
3A, 52kHz, Step-down Switching Regulator LM2576H FEATURES Step-down Switching Regulator Adjustable ersion Output oltage Range, 1.23 to 52 ± 4% Max over Line and Load conditions Guaranteed Output Current
More information3A, 52kHz, Step-Down Switching Regulator LM2576
3A, 52kHz, StepDown Switching Regulator LM2576 FEATURES 3.3V, 5.0V, 12V and Adjustable Output Versions Adjustable Version Output Voltage Range, 1.23 to 37V +/ 4% AG10Maximum Over Line and Load Conditions
More informationFeatures MIC BN FB. Fixed Regulator
MIC44 200kHz Simple 0.A Buck Regulator General Description The MIC44 is a series of easy to use fixed and adjustable BiCMOS step-down (buck) switch-mode voltage regulators. The 200kHz MIC44 duplicates
More informationSL2575 2A Step-down Voltage Switching Regulators
DESCRIPTION SL2575 of regulators provides all the active functions for a step-down (buck) switching regulator, and drives 2A load with excellent line and load regulation. SL2575 is available in fixed output
More informationGM7109 GM7109V1.00. Features. Description. Application. Typical Application Circuits. 150KHz, 2A STEP DOWN VOLTAGE SWITCHING REGULATORS
GM709 Description GM709 series is designed to provide all the active function for a step-down (buck) switching regulator, and drives a maximum load current as high as A line and load regulations. GM709
More informationFeatures MIC WT FB GND. Fixed Regulator MIC4576WT FB GND. Adjustable Regulator
MIC76 MIC76 00kHz Simple A Buck Regulator General Description The MIC76 is a series of easy to use fixed and adjustable BiCMOS step-down (buck) switch-mode voltage regulators. The 00kHz MIC76 duplicates
More informationMIC2171. General Description. Features. Applications. Typical Application. 100kHz 2.5A Switching Regulator
1kHz.5A Switching Regulator General Description The is a complete 1kHz SMPS current-mode controller with an internal 65.5A power switch. Although primarily intended for voltage step-up applications, the
More informationeorex (Preliminary) EP3101
(Preliminary) 150 KHz, 3A Asynchronous Step-down Converter Features Output oltage: 3.3, 5, 12 and Adjustable Output ersion Adjustable ersion Output oltage Range, 1.23 to 37 ±4% 150KHz±15% Fixed Switching
More informationMIC29510/ General Description. Features. Applications. Typical Application. 5A Fast-Response LDO Regulator
5A Fast-Response LDO Regulator General Description The MIC29510 and MIC29512 are high-current, highaccuracy, low-dropout voltage regulators featuring fast transient recovery from input voltage surges and
More informationSEMICONDUCTOR FAC1509 TECHNICAL DATA. 2A 150KHZ PWM Buck DC/DC Converter. General Description. Features. Applications. Package Types DIP8 SOP8
SEMICONDUCTOR TECHNICAL DATA FAC1509 General Description The FAC1509 is a of easy to use adjustable step-down (buck) switch-mode voltage regulator. The device is available in an adjustable output version.
More informationGM7109HV GM7109HVV2.01. Description. Features. Application. Typical Application Circuits. 150KHz, 60V/3A STEP DOWN VOLTAGE SWITCHING REGULATORS
GM7109H Description Features GM7109H series is designed to provide all the active function for a step-down (buck) switching regulator, and drives a maximum load current as high as 3A line and load regulations.
More informationBM2596 (MSP1250G) 150kHz 3A Step-down Voltage Converter
General Description The BM2596(=MSP1250G) series of regulators are integrated circuits that provide all active functions for a step-down (buck) switching regulator, capable of driving a 3A load with excellent
More informationHY2596A 3A 150kHz DC-DC BUCK REGULATOR
Description of regulators provides all the active functions for a step-down (buck) switching regulator, and drives 3A load with excellent line and load regulation. is available in fixed output voltages
More informationMIC General Description. Features. Applications. Typical Application. 5A, Low V IN, Low V OUT µcap LDO Regulator
MIC6952, Low V IN, Low V OUT µcap LDO Regulator General Description The MIC6952 is a, low dropout linear regulator that provides low voltage high current outputs with a minimum of external components.
More informationFeatures. Applications. Adjustable Regulator Application. (*See Minimum Load Current Section)
3A, Low Voltage µcap LDO Regulator General Description The is a 3A low-dropout linear voltage regulator that provides a low voltage, high current output with a minimum of external components. It offers
More informationPackage K5 : TO263-5L T5 : TO220-5L T5R : TO220-5L(R)
Features General Description oltage: 3.3, 5, 12 and Adjustable ersion Adjustable ersion oltage Range, 1.23 to 18+4% 150KHz +15% Fixed Switching Frequency oltage Mode Non-Synchronous PWM Control Thermal-Shutdown
More informationMIC General Description. Features. Applications. Typical Application. 3A Low Voltage LDO Regulator with Dual Input Voltages
3A Low Voltage LDO Regulator with Dual Input Voltages General Description The is a high-bandwidth, low-dropout, 3.0A voltage regulator ideal for powering core voltages of lowpower microprocessors. The
More information3.0A, 150kHz, Step-Down Switching Regulator
FEATURES 3.3, 5.0, 12, and Adjustable Output version Adjustable Output oltage range, 1.2 to 37 ±4% Max. Over Line and Load conditions Guaranteed Output Current of 3A Available in TO-263, TO-220 Packages
More informationAP Khz, 3A PWM Buck DC/DC Converter. Features. General Description. Applications. Description. Pin Assignments
Features - Output voltage: 3.3, 5, 12 and adjustable output version - Adjustable version output voltage range, 1.23 to 37+4% - 150Khz +15% fixed switching frequency - oltage mode non-synchronous PWM control
More informationAP1506. Package T5: TO220-5L L : K5: TO263-5L T5R: TO220-5L(R)
Features General Description oltage: 3.3, 5, 12 and Adjustable ersion Adjustable ersion oltage Range, 1.23 to 18+4% 150KHz +15% Fixed Switching Frequency oltage Mode Non-Synchronous PWM Control Thermal-Shutdown
More informationAP1506. Description. Pin Assignments. Features. Applications. 150kHz, 3A PWM BUCK DC/DC CONVERTER AP SD 4 FB 3 GND 2 Output
150kHz, 3A PWM BUCK DC/DC CONVERTER Description The series are monolithic IC designed for a step-down DC/DC converter, and own the ability of driving a 3A load without external transistor. Due to reducing
More informationFeatures. Applications 3.3V/1A SHUTDOWN ENABLE 16V
A khz SuperSwitcher Buck Regulator General Description The SuperSwitcher is an easy-to-use fixed or adjustable output voltage step-down (buck) switch-mode voltage regulator. The khz achieves up to.a of
More information150KHz 3A Step-Down Voltage Regulator
150KHz 3A Step-Down Voltage Regulator Product Description The GS556 series regulators are monolithic integrated circuits that provide all the active functions for a step-down switching regulator; capable
More informationLM1577/LM2577 SIMPLE SWITCHER Step-Up Voltage Regulator
SIMPLE SWITCHER Step-Up Voltage Regulator General Description The LM1577/LM2577 are monolithic integrated circuits that provide all of the power and control functions for step-up (boost), flyback, and
More informationMIC37150/51/52/53. General Description. Features. Applications. Typical Application. 1.5A, Low Voltage µcap LDO Regulator
1.5A, Low Voltage µcap LDO Regulator General Description The Micrel is a 1.5A low-dropout linear voltage regulator that provides a low voltage, high current output with a minimum of external components.
More informationMIC2296. General Description. Features. Applications. High Power Density 1.2A Boost Regulator
High Power Density 1.2A Boost Regulator General Description The is a 600kHz, PWM dc/dc boost switching regulator available in a 2mm x 2mm MLF package option. High power density is achieved with the s internal
More informationLM2825 Integrated Power Supply 1A DC-DC Converter
LM2825 Integrated Power Supply 1A DC-DC Converter General Description The LM2825 is a complete 1A DC-DC Buck converter packaged in a 24-lead molded Dual-In-Line integrated circuit package. Contained within
More information3A 150KHZ PWM Buck DC/DC Converter. Features
General Description The is a series of easy to use fixed and adjustable step-down (buck) switch-mode voltage regulators. These devices are available in fixed output voltage of 3.3V, 5V, and an adjustable
More informationFeatures. Applications
MIC532 15mA ULDO in Ultra-Small 1.2mm x 1.6mm Thin MLF General Description The MIC532 is an ultra-small, ultra-low dropout CMOS regulator, ULDO that is ideal for today s most demanding portable applications
More information2A 150KHZ PWM Buck DC/DC Converter. Features
General Description The is a of easy to use adjustable step-down (buck) switch-mode voltage regulator. The device is available in an adjustable output version. It is capable of driving a 2A load with excellent
More informationLead Free L : Lead Free. Package K5 : TO263-5L T5 : TO220-5L T5R : TO220-5L(R)
Features General Description Output voltage: 3.3, 5, 12 and adjustable output version Adjustable version output voltage range, 1.23 to 37+4% 150KHZ +15% fixed switching frequency oltage mode non-synchronous
More informationSINO SN KHz 3A Step-Down Voltage Regulator
150KHz 3A Step-Down Voltage Regulator Description The series regulators are monolithic integrated circuits that provide all the active functions for a step-down switching regulator; capable of driving
More informationMIC69151/153. General Description. Features. Applications. Typical Application. Single Supply V IN, Low V IN, Low V OUT, 1.5A LDO
Single Supply V IN, Low V IN, Low V OUT, 1.5A LDO General Description The is the 1.5A output current member of the MIC69xxx family of high current, low voltage regulators, which support currents of 1A,
More information3.0A, 150kHz, Step-Down Switching Regulator LM2596
FEATURES 3.3V, 5.0V, 12V, and Adjustable Output Versions Adjustable Version Output Voltage Range, 1.2 to 37V +/- 4%. Maximum Over Line and Load Conditions Guaranteed 3.0A Output Current Wide Input Voltage
More informationAT7450 2A-60V LED Step-Down Converter
FEATURES DESCRIPTION IN Max = 60 FB = 200m Frequency 52kHz I LED Max 2A On/Off input may be used for the Analog Dimming Thermal protection Cycle-by-cycle current limit I LOAD max =2A OUT from 0.2 to 55
More informationPower Management GM7110
1 STEPDOWN OLTGE SWITCHG REGULTOR Description Features of regulators provides all the active functions for a step down (buck) switching regulator, and drives 1 load with excellent line and load regulation.
More informationTechcode. 3A 150KHz PWM Buck DC/DC Converter TD1501H. General Description. Features. Applications. Package Types DATASHEET
General Description Features The TD1501H is a series of easy to use fixed and adjustable step-down (buck) switch-mode voltage regulators. These devices are available in fixed output voltage of 5V, and
More informationFeatures. Applications V IN C IN
3.A, Low-Voltage µcap LDO Regulator General Description The Micrel is a 3.A low-dropout linear voltage regulator that provides a low-voltage, high-current output with a minimum number of external components.
More informationFeatures MIC2193BM. Si9803 ( 2) 6.3V ( 2) VDD OUTP COMP OUTN. Si9804 ( 2) Adjustable Output Synchronous Buck Converter
MIC2193 4kHz SO-8 Synchronous Buck Control IC General Description s MIC2193 is a high efficiency, PWM synchronous buck control IC housed in the SO-8 package. Its 2.9V to 14V input voltage range allows
More informationSTD2596. PWM Control Step-Down DC/DC Converter. 150KHz, 3A PWM Buck DC/DC Converter FEATURE DESCRIPTION APPLICATIONS PIN CONFIGURATION
DESCRIPTION The STD2596 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving 3A load with excellent
More informationMIC Features. General Description. Applications. Ordering Information. 3A Fast-Response LDO Regulator for USB
3A Fast-Response LDO Regulator for USB General Description The is a 3A, fast response, low-dropout (LDO) voltage regulator. Using Micrel s proprietary Super βeta PNP process, the offers exceptional dropout
More informationFeatures MIC2194BM VIN EN/ UVLO CS OUTP VDD FB. 2k COMP GND. Adjustable Output Buck Converter MIC2194BM UVLO
MIC2194 400kHz SO-8 Buck Control IC General Description s MIC2194 is a high efficiency PWM buck control IC housed in the SO-8 package. Its 2.9V to 14V input voltage range allows it to efficiently step
More informationLM2679 SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit
SIMPLE SWITCHER 5A Step-Down Voltage Regulator with Adjustable Current Limit General Description The LM2679 series of regulators are monolithic integrated circuits which provide all of the active functions
More informationFeatures. Applications
White LED Driver Internal Schottky Diode and OVP General Description The is a PWM (pulse width modulated), boostswitching regulator that is optimized for constant-current white LED driver applications.
More informationMP2494 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 informationLM2599 SIMPLE SWITCHER Power Converter 150 khz 3A Step-Down Voltage Regulator, with Features
LM2599 SIMPLE SWITCHER Power Converter 150 khz 3A Step-Down Voltage Regulator, with Features General Description The LM2599 series of regulators are monolithic integrated circuits that provide all the
More informationMIC5387. Features. General Description. Applications. Typical Application. Ultra-Small Triple 150mA Output LDO
Ultra-Small Triple Output LDO General Description The is an advanced, general-purpose, triple linear regulator offering high power supply rejection (PSRR) in an ultra-small, 6-pin, 1.6mm x 1.6mm Thin MLF
More informationLM2595 SIMPLE SWITCHER Power Converter 150 khz 1A Step-Down Voltage Regulator
LM2595 SIMPLE SWITCHER Power Converter 150 khz 1A Step-Down Voltage Regulator General Description The LM2595 series of regulators are monolithic integrated circuits that provide all the active functions
More informationMIC5388/9. Features. General Description. Applications. Typical Application. Dual 200mA Peak LDO in Wafer Level Chip Scale Package
Dual 2mA Peak LDO in Wafer Level Chip Scale Package General Description The is an advanced dual LDO ideal for powering general purpose portable devices. The provides two independently-controlled, highperformance,
More informationMIC3385. General Description. Features. Applications. Typical Application. 8MHz Inductorless Buck Regulator with LDO Standby Mode
8MHz Inductorless Buck Regulator with LDO Standby Mode General Description The Micrel is a high efficiency inductorless buck regulator that features a LOWQ LDO standby mode that draws only 18µA of quiescent
More informationMIC General Description. Features. Applications: Typical Application. 1A High Speed Low VIN LDO
1A High Speed Low VIN LDO General Description The is a high speed, Low V IN LDO capable of delivering up to 1A and designed to take advantage of point of load applications that use multiple supply rails
More informationMIC2295. Features. General Description. Applications. High Power Density 1.2A Boost Regulator
High Power Density 1.2A Boost Regulator General Description The is a 1.2Mhz, PWM dc/dc boost switching regulator available in low profile Thin SOT23 and 2mm x 2mm MLF package options. High power density
More informationFeatures. Applications. Figure 1. Typical Application Circuit
3A, Low Voltage, Adjustable LDO Regulator with Dual Input Supply General Description The is a high-bandwidth, low-dropout, 3A voltage regulator ideal for powering core voltages of lowpower microprocessors.
More informationMIC2245. Features. General Description. Applications. Typical Application. 4MHz PWM Synchronous Buck Regulator with LDO Standby Mode
4MHz PWM Synchronous Buck Regulator with LDO Standby Mode General Description The Micrel is a high efficiency 4MHz pulse width modulated (PWM) synchronous buck (stepdown) regulator that features a LOWQ
More information1A, 52kHz, Step-Down Switching Regulator LM2575
FEATURES 3.3, 5.0, 12, 15, and Adjustable Output ersions Adjustable ersion Output oltage Range, 1.23 to 37 +/- 4% AG10 Maximum Over Line and Load Conditions Guaranteed 1A Output Current Wide Input oltage
More informationTS2596 3A / 150KHz Buck Dc-Dc Converter
TO-220-5L TO-263-5L (D 2 PAK) Pin Definition: 1. Input 2. SW Output 3. Ground 4. Feedback 5. Enable General Description The Series are step-down switching regulators with all required active functions.
More informationMIC2290. General Description. Features. Applications. Typical Application. 2mm 2mm PWM Boost Regulator with Internal Schotty Diode
2mm 2mm PWM Boost Regulator with Internal Schotty Diode General Description The is a 1.2MHz, PWM, boost-switching regulator housed in the small size 2mm 2mm 8-pin MLF package. The features an internal
More informationFeatures. 5V Reference UVLO. Oscillator S R GND*(AGND) 5 (9) ISNS 3 (5)
MIC38HC42/3/4/5 BiCMOS 1A Current-Mode PWM Controllers General Description The MIC38HC4x family are fixed frequency current-mode PWM controllers with 1A drive current capability. Micrel s BiCMOS devices
More informationFeatures. Applications
White LED Driver Internal Schottky Diode and OVP General Description The is a PWM (pulse width modulated), boostswitching regulator that is optimized for constant-current white LED driver applications.
More informationMIC5385. Features. General Description. Applications. Typical Application. Ultra Small Triple 150mA Output LDO
Ultra Small Triple 1 Output LDO General Description The is an advanced general purpose triple linear regulator offering high power supply rejection (PSRR) in an ultra-small 2mm x 2mm 8 pin Thin MLF package.
More informationFeatures. Applications
MIC67 IttyBitty Comparator General Description The MIC67 is a precision voltage comparator with an offset voltage specification of maximum. The MIC67 is designed to operate from a single V to 6V power
More informationFeatures. Applications. 1.2MHz Boost Converter with OVP in Thin SOT-23-6
1.2MHz PWM Boost Converter with OVP General Description The is a 1.2MHz pulse width modulated (PWM) step-up switching regulator that is optimized for low power, high output voltage applications. With a
More informationFeatures. MIC5253-x.xBC5 V IN. Ultra-Low-Noise Regulator Application
1mA Low Noise µcap Teeny LDO General Description The is an efficient, CMOS voltage regulator optimized for ultra-low-noise applications. It offers 1.5% initial accuracy, extremely low dropout voltage (165mV
More informationAT7576 2A Step Down Voltage Regulator with Operational Amplifier
FEATURES DESCRIPTION Output oltage Range, 1.23 to 37 ±3% Guaranteed 2A Output Current Wide Input oltage Range, 40 52KHz Fixed Frequency Oscillator TTL Shutdown capability, Low Power Standby Mode High Efficiency
More informationFeatures. Applications
High-Current Low-Dropout Regulators General Description The is a high current, high accuracy, lowdropout voltage regulators. Using Micrel's proprietary Super βeta PNP process with a PNP pass element, these
More informationRT V DC-DC Boost Converter. Features. General Description. Applications. Ordering Information. Marking Information
RT8580 36V DC-DC Boost Converter General Description The RT8580 is a high performance, low noise, DC-DC Boost Converter with an integrated 0.5A, 1Ω internal switch. The RT8580's input voltage ranges from
More informationLM2678 SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator
LM2678 SIMPLE SWITCHER High Efficiency 5A Step-Down Voltage Regulator General Description The LM2678 series of regulators are monolithic integrated circuits which provide all of the active functions for
More informationMIC Features. General Description. Applications. Typical Application. 1.5A, Low-Voltage µcap LDO Regulator
1.5A, Low-Voltage µcap LDO Regulator General Description The Micrel is a 1.5A low-dropout linear voltage regulator that provides a low-voltage, high-current output with a minimum of external components.
More informationLM2594/LM2594HV SIMPLE SWITCHER Power Converter 150 khz 0.5A Step-Down Voltage Regulator
LM2594/LM2594HV SIMPLE SWITCHER Power Converter 150 khz 0.5A Step-Down Voltage Regulator General Description The LM2594/LM2594HV series of regulators are monolithic integrated circuits that provide all
More informationLMC7101 A12A. Features. General Description. Applications. Ordering Information. Pin Configuration. Functional Configuration.
LMC7 LMC7 Low-Power Operational Amplifier Final Information General Description The LMC7 is a high-performance, low-power, operational amplifier which is pin-for-pin compatible with the National Semiconductor
More informationNot Recommended for New Design
Features - voltage:. and adjustable output version - Adjustable version output voltage range, 1.2 to 18+4% - 150KHz +15% fixed switching frequency - oltage mode non-synchronous PWM control - Thermal-shutdown
More informationMIC BML MIC BML
MIC9/93 High Frequency PWM White LED Drivers with Internal Schottky Diode and OVP General Description The MIC9 and MIC93 are high frequency, Pulse Width Modulator (PWM) boost regulators optimized for constantcurrent,
More informationMIC5238. General Description. Features. Applications. Typical Application. Ultra-Low Quiescent Current, 150mA µcap LDO Regulator
Ultra-Low Quiescent Current, 150mA µcap LDO Regulator General Description The is an ultra-low voltage output, 150mA LDO regulator. Designed to operate in a single supply or dual supply mode, the consumes
More informationLM2596 SIMPLE SWITCHER Power Converter 150 khz 3A Step-Down Voltage Regulator
查询 S-5.0 供应商 SIMPLE SWITCHER Power Converter 150 khz 3A Step-Down Voltage Regulator General Description The series of regulators are monolithic integrated circuits that provide all the active functions
More informationDistributed by: www.jameco.com 1-800-831-4242 The content and copyrights of the attached material are the property of its owner. LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator General
More information3A 150KHz PWM Buck DC/DC Converter
General Description The is a series of easy to use fixed and adjustable step-down (buck) switch-mode voltage regulators. These devices are available in fixed output voltage of 5V, and an adjustable output
More informationMIC General Description. Features. Applications. Typical Application. 1.5A Low Voltage LDO Regulator w/dual Input Voltages
MIC4915 1.5A Low oltage LDO Regulator w/dual Input oltages General Description The MIC4915 is a high-bandwidth, low-dropout, 1.5A voltage regulator ideal for powering core voltages of lowpower microprocessors.
More informationMIC69101/103. General Description. Features. Applications. Typical Application. Single Supply V IN, LOW V IN, LOW V OUT, 1A LDO
MIC6911/13 Single Supply V IN, LOW V IN, LOW V OUT, 1A LDO General Description The MIC6911/13 is the 1A output current member of the MIC69xxx family of high current, low voltage regulators, which support
More informationFeatures MIC BM GND 5 8. Fixed Regulator Circuit MIC4680BM GND SOP Adjustable Regulator Circuit
MIC68 A khz SuperSwitcher Buck Regulator Final Information General Description The MIC68 SuperSwitcher is an easy-to-use fixed or adjustable output voltage step-down (buck) switch-mode voltage regulator.
More informationFeatures. Applications
105MHz Low-Power SOT23-5 Op Amp General Description The is a high-speed operational amplifier which is unity gain stable regardless of resistive and capacitive load. It provides a gain-bandwidth product
More informationFeatures MIC5236 GND. Regulator with Adjustable Output
MIC56 Low Quiescent Current µcap LDO Regulator General Description The MIC56 is a low quiescent current, µcap low-dropout regulator. With a maximum operating input voltage of V and a quiescent current
More informationMP A, 55V, 100kHz Step-Down Converter with Programmable Output OVP Threshold
The Future of Analog IC Technology MP24943 3A, 55V, 100kHz Step-Down Converter with Programmable Output OVP Threshold DESCRIPTION The MP24943 is a monolithic, step-down, switch-mode converter. It supplies
More informationMIC2601/2. Features. General Description. Applications. Typical Application. 1.2A, 1.2MHz/2MHz Wide Input Range Integrated Switch Boost Regulator
1.2A, 1.2MHz/2MHz Wide Input Range Integrated Switch Boost Regulator General Description The is a 1.2MHz/2MHz, PWM DC/DC boost switching regulator available in a 2mm x 2mm MLF package. High power density
More informationFeatures MIC ERROR FLAG OUTPUT V IN 3.3V IN V OUT 2.5V 3.3V OUT GND
MIC395/3951 5A µcap Low-Voltage Low-Dropout Regulator General Description The MIC395 and MIC3951 are 5A low-dropout linear voltage regulators that provide a low-voltage, high-current output with a minimum
More informationADD MICROTECH CORP. AMC KHZ, 3A STEP DOWN VOLTAGE REGULATOR. Voltage Options: AMC DOC. #:AMC2596_A (LF) March 2005
AMC DOC. #:_A (LF) ADD MICROTECH CORP. DESCRIPTION The series are highly integrated step down voltage regulator capable of driving a 3A load with extremely regulated output voltages over line & load regulation.
More informationFeatures. Ordering Information. Part Identification
MIC9 MHz Low-Power SC-7 Op Amp General Description The MIC9 is a high-speed operational amplifier with a gain-bandwidth product of MHz. The part is unity gain stable. It has a very low.ma supply current,
More informationAP XX XXX X - X. G: Green. Lead Free/ Green. Quantity
Features Output voltage: 3.3, 5, 12 and adjustable output version Adjustable version output voltage range, 1.23 to 37+4% 150kHz +15% fixed switching frequency oltage mode non-synchronous PWM control Thermal-shutdown
More information3A Step-Down Voltage Regulator
3A Step-Down Voltage Regulator DESCRIPITION The is monolithic integrated circuit that provides all the active functions for a step-down(buck) switching regulator, capable of driving 3A load with excellent
More informationThe ASD5001 is available in SOT23-5 package, and it is rated for -40 to +85 C temperature range.
General Description The ASD5001 is a high efficiency, step up PWM regulator with an integrated 1A power transistor. It is designed to operate with an input Voltage range of 1.8 to 15V. Designed for optimum
More information