Features. Applications. V OUT
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1 MIC535 5mA µcap Ultra-Low Dropout LDO Regulator General Description The MIC535 is a high-performance, 5mA LDO regulator, offering extremely high PSRR and very low noise while consuming low ground current. Ideal for battery-operated applications, the MIC535 features % accuracy, extremely low-dropout voltage 5mA), and low ground current at light load (typically 9µA). Equipped with a logic-compatible enable pin, the MIC535 can be put into a zero-off-mode current state, drawing no current when disabled. The MIC535 is a µcap design operating with very small ceramic output capacitors for stability, thereby reducing required board space and component cost. The MIC535 is available in fixed output voltages and adjustable output voltages in the super-compact 6-pin 2mm 2mm MLF leadless package, our new ultra-thin 6-pin 2mm 2mm Thin MLF and thin SOT-23-5 package. Additional voltage options are available. Contact Micrel marketing. Data sheets and support documentation can be found on Micrel s web site at Features Ultra-low dropout voltage of 5mA Input voltage range: 2.25 to 5.5V Stable with ceramic output capacitor 5mA guaranteed output current Low output noise 2µVrms Low quiescent current of 9µA total High PSRR, up to Less than 3µs turn-on time w/c BYP =.µf High output accuracy: ±.% initial accuracy ±2.% over temperature Thermal shutdown protection Current limit protection Tiny 6-pin 2mm 2mm MLF package Ultra-Thin 6-pin 2mm 2mm Thin MLF package Thin SOT-23-5 package Applications Cellular phones PDAs Fiber optic modules Portable electronics Notebook PCs Audio Codec power supplies Typical Application 7 Dropout Voltage 3.V V IN µf MIC535 VOUT EN BYP.µF µf 2.85V@5mA V OUT DROPOUT VOLTAGE (mv) PSRR (db) OUTPUT CURRENT (ma) PSRR (Bypass Pin Cap =.µf) 5mA µa. FREQUENCY (khz) 5mA k MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. Micrel Inc. 28 Fortune Drive San Jose, CA 953 USA tel + (48) fax + (48) June 27 M
2 MIC535 Ordering Information Part Number Marking Standard Pb-Free Standard Pb-Free* Voltage Junction Temp. Range () Package MIC535-.5BML MIC535-.5YML V 4 C to +25 C 6-Pin 2x2 MLF MIC535-.8BML MIC535-.8YML V 4 C to +25 C 6-Pin 2x2 MLF MIC535-2.YML 82 2.V 4 C to +25 C 6-Pin 2x2 MLF MIC BML MIC YML V 4 C to +25 C 6-Pin 2x2 MLF MIC BML MIC YML V 4 C to +25 C 6-Pin 2x2 MLF MIC BML MIC YML V 4 C to +25 C 6-Pin 2x2 MLF MIC BML MIC YML V 4 C to +25 C 6-Pin 2x2 MLF MIC BML MIC YML 82J 82J 2.85V 4 C to +25 C 6-Pin 2x2 MLF MIC BML MIC YML V 4 C to +25 C 6-Pin 2x2 MLF MIC535-3.BML MIC535-3.YML V 4 C to +25 C 6-Pin 2x2 MLF MIC BML MIC YML V 4 C to +25 C 6-Pin 2x2 MLF MIC BML MIC YML 84H 84H 4.75V 4 C to +25 C 6-Pin 2x2 MLF MIC535BML MIC535YML 8AA 8AA ADJ 4 C to +25 C 6-Pin 2x2 MLF MIC YMT 828** 2.8V 4 C to +25 C 6-Pin 2x2 Thin MLF MIC YMT 846** 4.6V 4 C to +25 C 6-Pin 2x2 Thin MLF MIC535-.5BD5 MIC535-.5YD5 N85 N85.5V 4 C to +25 C Thin SOT23-5 MIC535-.8BD5 MIC535-.8YD5 N88 N88.8V 4 C to +25 C Thin SOT23-5 MIC BD5 MIC YD5 N825 N V 4 C to +25 C Thin SOT23-5 MIC BD5 MIC YD5 N826 N V 4 C to +25 C Thin SOT23-5 MIC BD5 MIC YD5 N827 N V 4 C to +25 C Thin SOT23-5 MIC BD5 MIC YD5 N828 N V 4 C to +25 C Thin SOT23-5 MIC BD5 MIC YD5 N82J N82J 2.85V 4 C to +25 C Thin SOT23-5 MIC BD5 MIC YD5 N829 N V 4 C to +25 C Thin SOT23-5 MIC535-3.BD5 MIC535-3.YD5 N83 N83 3.V 4 C to +25 C Thin SOT23-5 MIC BD5 MIC YD5 N833 N V 4 C to +25 C Thin SOT23-5 MIC BD5 MIC YD5 N84H N84H 4.75V 4 C to +25 C Thin SOT23-5 Note:. For other output voltage options, contact Micrel marketing. * Underbar/Overbar symbols may not be to scale. ** Pin identifier for 2x2 Thin MLF is symbol. June 27 2 M
3 MIC535 Pin Configuration EN 6 BYP EN 6 BYP 2 5 NC 2 5 ADJ 3 4 VOUT 3 4 VOUT MIC535-x.xBML/YML (Fixed) 6-Pin 2mm x 2mm MLF (ML) (Top View) MIC535-x.xBML/YML (Adjustable) 6-Pin 2mm x 2mm MLF (ML) (Top View) EN 6 BYP EN NC KWxx 3 4 VOUT 4 5 BYP VOUT MIC535-x.xYMT (Fixed) 6-Pin 2mm x 2mm Thin MLF (MT) (Top View) MIC535-x.xBD5/YD5 (Fixed) TSOT-23-5 (D5) (Top View) Pin Description Pin Number MLF-6 Fixed Pin Number MLF-6 Adjustable Pin Number Thin MLF-6 Fixed Pin Number TSOT23-5 Fixed Pin Name Pin Name 3 EN Enable Input. Active High. High = on, low = off. Do not leave floating Ground Supply Input VOUT Output Voltage. 5 ADJ Adjust Input: Connect to external resistor voltage divider network. 5 5 NC No connection for fixed voltage parts BYP Reference Bypass: Connect external.µf to for reduced output noise. May be left open. HS Pad HS Pad HS Pad EPAD Exposed Heatsink Pad connected to ground internally. June 27 3 M
4 Absolute Maximum Ratings () Supply Voltage (V IN )... V to 6V Enable Input Voltage (V EN )... V to 6V Power Dissipation (P D )... Internally Limited (3) Junction Temperature (T J )... 4 C to +25 C Lead Temperature (soldering, 5sec.) C Storage Temperature (T s ) C to +5 C EDS Rating (4)... 2kV Operating Ratings (2) MIC535 Supply voltage (V IN ) V to 5.5V Enable Input Voltage (V EN )... V to V IN Junction Temperature (T J )... 4 C to +25 C Junction Thermal Resistance MLF-6 (θ JA )...93 C/W Thin MLF-6 (θ JA )...93 C/W TSOT-23-5 (θ JA ) C/W Electrical Characteristics (5) V IN = V OUT +.V; C OUT =.µf; I OUT = µa; T J = 25 C, bold values indicate 4 C to +25 C, unless noted. Parameter Condition Min Typ Max Units Output Voltage Accuracy Output Voltage Temp. Coefficient Variation from nominal V OUT. +. % Variation from nominal V OUT, I OUT = ma to 5mA % 4 pm/ C Line Regulation V IN = V OUT +V to 5.5V.2.3 %/V Load Regulation (6) I OUT = µa to 5mA..5 % Dropout Voltage (7) I OUT = 5mA, V OUT > 2.8V 2 35 mv I OUT = 5mA, V OUT > 2.8V 6 85 mv I OUT = 5mA, V OUT > 2.8V mv I OUT = 5mA, V OUT > 2.8V 85 mv Ground Pin Current (8) I OUT = to 5mA 9 5 µa Ground Pin Current in Shutdown V EN.2V.5 µa Ripple Rejection f = up to khz; C OUT =.µf ceramic; C BYP =.µf 85 db f = khz; C OUT =.µf ceramic; C BYP =.µf 65 db Current Limit V OUT = V ma Output Voltage Noise C OUT =µf, C BYP =.µf, Hz to khz 2 µvrms Turn-On Time C OUT = µf; C BYP =.µf; I OUT = 5mA 3 µs Enable Input Enable Input Voltage Logic Low (Regulator Shutdown).2 V Logic High (Regulator Enabled). V Enable Input Current V IL.2V (Regulator Shutdown). µa V IH.V (Regulator Enabled). µa Notes:. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 3. The maximum allowable power dissipation of any T A (ambient temperature) is P D(max) = (T J(max) - T A ) / θ JA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. 4. Devices are ESD sensitive. Handling precautions recommended. Human body model. 5. Specification for packaged product only. 6. Regulation is measured at constant junction temperature using low duty cycle pulse testing, changes in output voltage due to heating effects are covered by the thermal regulation specification. 7. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal V OUT. For outputs below 2.25V, dropout voltage is the input-to-output differential with the minimum input voltage 2.25V. 8. Ground pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground pin current. June 27 4 M
5 MIC535 Typical Characteristics PSRR (db) PSRR (Bypass Pin Cap =.µf) 2 5mA 8 5mA µa k FREQUENCY (khz) PSRR (db) PSRR (Bypass Pin Cap =.µf) µa 5mA. FREQUENCY (khz) 5mA k PSRR (db) PSRR (Bypass Pin Cap = µf) µa 5mA. FREQUENCY (khz) 5mA k GROUND CURRENT (µa) Ground Pin Current V IN =V OUT +V 7. OUTPUT CURRENT (ma) GROUND CURRENT (µa) Ground Pin Current I LOAD =µa GROUND CURRENT (µa) Ground Pin Current I =5mA LOAD GROUND CURRENT (µa) Ground Pin Current I LOAD =µa INPUT VOLTAGE (V) GROUND CURRENT (µa) Ground Pin Current I LOAD = 5mA INPUT VOLTAGE (V) OUTPUT VOLTAGE (V) Dropout Characteristics 3.5 I =µa LOAD I =5mA.5 LOAD INPUT VOLTAGE (V) DROPOUT VOLTAGE (mv) Dropout Voltage I =ma OUT TEMPERATURE( C) DROPOUT VOLTAGE (mv) Dropout Voltage I OUT =5mA DROPOUT VOLTAGE (mv) Dropout Voltage I =ma OUT June 27 5 M
6 MIC535 DROPOUT VOLTAGE (mv) Dropout Voltage I OUT = 5mA DROPOUT VOLTAGE (mv) Dropout Voltage OUTPUT CURRENT (ma) SHORT CIRCUIT CURRENT (ma) Short Circuit Current INPUT VOLTAGE (V) V OUT (V) Output Voltage vs. Temperature I 2.86 LOAD = µa V OUT =2.9V ENABLE THRESHOLD VOLTAGE (V) Enable Threshold vs. Temperature I LOAD =µa Output Noise Spectral Density June 27 6 M
7 MIC535 Functional Characteristics Line Transient Response Load Transient Response Input Voltage (V/div) OutputVoltage (V/div) TIME (4µs/div) 3V 5V C BYP =.µf I OUT = µa C OUT = µf Ceramic OutputVoltage (5mV/div) Output Current (ma/div) TIME (4µs/div) C BYP =.µf V IN = 4V C OUT = µf Ceramic Enable Pin Delay Shutdown Delay EnableVoltage (V/div) OutputVoltage (V/div) C BYP =.µf I OUT = µa C IN = µf Ceramic C OUT = µf Ceramic EnableVoltage (V/div) OutputVoltage (V/div) C BYP =.µf I OUT = µa V IN = 4V C IN = µf Ceramic C OUT = µf Ceramic TIME (µs/div) TIME (2µs/div) June 27 7 M
8 MIC535 Functional Diagram VOUT EN BYP V REF Quick- Start Error Amp LDO Thermal Shutdown Current Limit MIC535 Block Diagram Fixed VOUT EN BYP V REF Quick- Start Error Amp LDO Thermal Shutdown Current Limit MIC535 Block Diagram Adjustable June 27 8 M
9 Application Information Enable/Shutdown The MIC535 comes with an active-high enable pin that allows the regulator to be disabled. Forcing the enable pin low disables the regulator and sends it into a zero off-mode-current state. In this state, current consumed by the regulator goes nearly to zero. Forcing the enable pin high enables the output voltage. The active-high enable pin uses CMOS technology and the enable pin cannot be left floating; a floating enable pin may cause an indeterminate state on the output. Input Capacitor The MIC535 is a high-performance, high bandwidth device. Therefore, it requires a well-bypassed input supply for optimal performance. A µf capacitor is required from the input to ground to provide stability. Low-ESR ceramic capacitors provide optimal performance at a minimum of space. Additional high frequency capacitors, such as small-valued NPO dielectric-type capacitors, help filter out high-frequency noise and are good practice in any RF-based circuit. Output Capacitor The MIC535 requires an output capacitor of µf or greater to maintain stability. The design is optimized for use with low-esr ceramic chip capacitors. High ESR capacitors may cause high frequency oscillation. The output capacitor can be increased, but performance has been optimized for a µf ceramic output capacitor and does not improve significantly with larger capacitance. X7R/X5R dielectric-type ceramic capacitors are recommended because of their temperature performance. X7R-type capacitors change capacitance by 5% over their operating temperature range and are the most stable type of ceramic capacitors. Z5U and Y5V dielectric capacitors change value by as much as 5% and 6%, respectively, over their operating temperature ranges. To use a ceramic chip capacitor with Y5V dielectric, the value must be much higher than an X7R ceramic capacitor to ensure the same minimum capacitance over the equivalent operating temperature range. Bypass Capacitor A capacitor can be placed from the noise bypass pin to ground to reduce output voltage noise. The capacitor bypasses the internal reference. A.µF capacitor is recommended for applications that require low-noise outputs. The bypass capacitor can be increased, further reducing noise and improving PSRR. Turn-on time increases slightly with respect to bypass capacitance. A unique, quick-start circuit allows the MIC535 to drive a large capacitor on the bypass pin without significantly slowing turn-on time. Refer to the Typical Characteristics section for performance with different bypass capacitors. MIC535 No-Load Stability Unlike many other voltage regulators, the MIC535 will remain stable and in regulation with no load. This is especially import in CMOS RAM keep-alive applications. Adjustable Regulator Application Adjustable regulators use the ratio of two resistors to multiply the reference voltage to produce the desired output voltage. The MIC535 can be adjusted from.25v to 5.5V by using two external resistors (Figure ). The resistors set the output voltage based on the following equation: R V + OUT = VREF R2 V REF =.25V V IN µf MIC535BML VOUT EN ADJ R R2 Figure. Adjustable Voltage Application µf V OUT Thermal Considerations The MIC535 is designed to provide 5mA of continuous current in a very small package. Maximum ambient operating temperature can be calculated based on the output current and the voltage drop across the part. Given that the input voltage is 5.V, the output voltage is 2.9V and the output current = 5mA. The actual power dissipation of the regulator circuit can be determined using the equation: P D = (V IN V OUT ) I OUT + V IN I Because this device is CMOS and the ground current is typically <µa over the load range, the power dissipation contributed by the ground current is < % and can be ignored for this calculation. P D = (5.V 2.9V) 5mA P D =.32W To determine the maximum ambient operating temperature of the package, use the junction-to-ambient thermal resistance of the device and the following basic equation: TJ(max) TA P = D(max) θ JA T J(max) = 25 C, the max. junction temperature of the die. θ JA thermal resistance = 93 C/W June 27 9 M
10 Table shows junction-to-ambient thermal resistance for the MIC535 in the 6-pin 2mm 2mm MLF package. Package θja Recommended θjc Minimum Footprint 6-Pin 2x2 MLF 93 C/W 2 C/W Table. Thermal Resistance Substituting P D for P D(max) and solving for the ambient operating temperature will give the maximum operating conditions for the regulator circuit. The junction-toambient thermal resistance for the minimum footprint (the minimum amount of copper that you can solder the part to) is 93 C/W, from Table. The maximum power dissipation must not be exceeded for proper operation. For example, when operating the MIC BML at an input voltage of 5.V and 5mA load with a MIC535 minimum footprint layout, the maximum ambient operating temperature T A can be determined as follows: 25 C TA.32W = 93 C/W T A = 95.2 C Therefore, a 2.9V application at 5mA of output current can accept an ambient operating temperature of 95.2 C in a 6-pin 2mm x 2mm MLF package. For a full discussion of heat sinking and thermal effects on voltage regulators, refer to the Regulator Thermals section of Micrel s Designing with Low-Dropout Voltage Regulators handbook. This information can be found on Micrel's website at: June 27 M
11 MIC535 Package Information 6-Pin 2x2 MLF (ML) 6-Pin 2x2 Thin MLF (MT) June 27 M
12 MIC535 5-Pin TSOT-23 (D5) MICREL, INC. 28 FORTUNE DRIVE SAN JOSE, CA 953 USA TEL + (48) FAX + (48) 474- WEB The 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. 24 Micrel, Incorporated. June 27 2 M
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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 informationFeatures. Applications. Camera DSP Power Supply Circuit
High-Performance Dual 150mA LDO General Description The is a tiny dual low-dropout linear regulator ideally suited for portable electronics. It is ideal for general purpose/digital applications which require
More informationMIC5206. General Description. Features. Applications. Typical Application. 150mA Low-Noise LDO Regulator
MIC526 5mA Low-Noise LDO Regulator General Description The MIC526 is an efficient linear voltage regulator with very low dropout voltage (typically 7 at light loads and 65 at 5mA), and very low ground
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 informationFeatures. Enable Shutdown 2. LAx. Regulator Circuit
MIC53 MIC53 Teeny SC-7 µcap Low-Dropout Regulator Final Information General Description The MIC53 is a µcap 8mA linear voltage regulator in the Teeny SC-7 package. Featuring half the footprint of the standard
More informationMIC5216. General Description. Features. Applications. Typical Application. 500mA-Peak Output LDO Regulator
500mA-Peak Output LDO Regulator General Description The is an efficient linear voltage regulator with high peak output current capability, very low dropout voltage, and better than 1% output voltage accuracy.
More informationMIC5374/84. Features. General Description. Applications. Typical Application. Triple 200mA µcap LDO and 1mA RTC LDO in 2.5mm x 2.
Triple 2mA µcap LDO and 1mA RTC LDO in 2.5mm x 2.5mm Thin MLF General Description The is a four output device with three 2mA LDOs and a real time clock (RTC) 1mA LDO which is ideal for application processor
More informationMIC5207. General Description. Features. Applications. Typical Application. 180mA Low-Noise LDO Regulator
180mA Low-Noise LDO Regulator General Description The is an efficient linear voltage regulator with ultra-low-noise output, very low dropout voltage (typically 17 at light loads and 165 at 150mA), and
More informationMIC5373/83. Features. General Description. Applications. Typical Application. Triple 200mA µcap LDO in 2.5mm x 2.5mm Thin MLF
Triple 2mA µcap LDO in 2.5mm x 2.5mm Thin MLF General Description The is a triple output device with three 2mA LDOs which is ideal for application processor support in mobile platforms. The MIC5373 provides
More informationMIC3975. General Description. Features. Applications. Ordering Information. Typical Applications. 750mA µcap Low-Voltage Low-Dropout Regulator
MIC3975 750mA µcap Low-Voltage Low-Dropout Regulator General Description The MIC3975 is a 750mA low-dropout linear voltage regulators that provide low-voltage, high-current output from an extremely small
More informationFeatures. Applications
MIC9431 2mA LDO with Ripple Blocker Technology General Description The MIC9431 Ripple Blocker is a monolithic integrated circuit that provides low-frequency ripple attenuation (switching noise rejection)
More informationFeatures V OUT C BYP. Ultra-Low-Noise Regulator Application
MIC525 MIC525 5mA Low-Noise LDO Regulator Final Information General Description The MIC525 is an efficient linear voltage regulator with ultralow-noise output, very low dropout voltage (typically 7mV at
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 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 informationMIC37110/MIC37112 MIC37120/MIC37122
High-Performance, Low-Noise, 1A LDOs General Description The and are high-performance, low-noise, low dropout regulators. Each of these LDOs is capable of sourcing 1A output current, offers high power
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 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 informationFeatures. Applications. Battery-Powered Regulator Application
180mA Low-Noise LDO Regulator General Description The is an efficient linear voltage regulator with ultra-low-noise output, very low dropout voltage (typically 17 at light loads and 165 at 150mA), and
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 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. Applications
MIC9431 2mA LDO with Ripple Blocker Technology General Description The MIC9431 Ripple Blocker is a monolithic integrated circuit that provides low-frequency ripple attenuation (switching noise rejection)
More informationFeatures. MIC5219-x.xBML. Ultra-Low-Noise Regulator
MIC519 5mA-Peak Output LDO Regulator General Description The MIC519 is an effi cient linear voltage regulator with high peak output current capability, very-low-dropout voltage, and better than 1% output
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 informationGM6155 GM6155V1.01. Description. Features. Application. Typical Application Circuits. 150mA LOW NOISE CMOS LDO WITH ENABLE FUNCTION
Description GM6155 is a high efficient CMOS LDO with features as such ultra low noise output, ultra low dropout voltage (typically 17mV at light load and 165mV at 50mA load), and low ground current (600µA
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 informationRT9187C. 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 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 informationMIC2291. General Description. Features. Applications. Typical Application. 1.2A PWM Boost Regulator Photo Flash LED Driver
1.2A PWM Boost Regulator Photo Flash LED Driver General Description The is a 1.2MHz Pulse Width Modulation (PWM), boost-switching regulator that is optimized for high-current, white LED photo flash applications.
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 informationMIC37100/37101/ General Description. Features. Applications. Typical Applications. 1A Low-Voltage µcap LDO Regulator
MIC37/37/37 MIC37/37/37 A Low-Voltage µcap LDO Regulator General Description The MIC37, MIC37, and MIC37 are A low-dropout, linear voltage regulators that provide low-voltage, high-current output from
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 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 informationFeatures. Applications
3.0A, Low-Voltage µcap LDO Regulator General Description The Micrel is a 3.0A low-dropout linear voltage regulator that provides a low voltage, high current output with a minimum number of external components.
More informationMIC General Description. Features. Applications. Typical Application. HELDO 1.5A High Efficiency Low Dropout Regulator
HELDO 1.5A High Efficiency Low Dropout Regulator General Description The is a 1.5A continuous output current step down converter. This is a follow on product in the new HELDO (High Efficiency Low DropOut
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 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 informationRT9187B. 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 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. R1 10k. 10nF. R2 3.83k
High Efficiency 1MHz Synchronous Buck Regulator General Description The Micrel is a high efficiency 1MHz PWM synchronous buck switching regulator. The features low noise constant frequency PWM operation
More informationMIC2846A. General Description. Features. Applications. High Efficiency 6 Channel Linear WLED Driver with DAM, Digital Control and Dual Low I Q LDOs
High Efficiency 6 Channel Linear WLED Driver with DAM, Digital Control and Dual Low I Q LDOs General Description The is a high efficiency White LED (WLED) driver featuring two low quiescent current LDOs.
More informationMIC General Description. Features. Applications. Dual 2A LDO Regulator
Dual 2A LDO Regulator General Description The is a dual high peak current LDO regulator designed specifically for powering applications such as FPGA core voltages that require high start up current with
More informationMIC5202. Dual 100mA Low-Dropout Voltage Regulator. Features. General Description. Pin Configuration. Ordering Information. Typical Application
MIC MIC Dual ma Low-Dropout Voltage Regulator Preliminary Information General Description The MIC is a family of dual linear voltage regulators with very low dropout voltage (typically 7mV at light loads
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MIC2287 1.2MHz PWM White LED Driver with OVP in 2mm 2mm MLF and Thin SOT-23 General Description The MIC2287 is a 1.2MHz pulse width modulated (PWM), boost-switching regulator that is optimized for constantcurrent,
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 informationRT 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 informationMIC94090/1/2/3/4/5. Features. General Description. Applications. Typical Application. High Side Load Switches for Consumer Applications
High Side Load Switches for Consumer Applications General Description The is a family of high-side load switches designed for operation from 1.7V to 5.5V input voltage. The load switch pass element is
More informationMIC2287. Features. General Description. Applications. Typical Application. 1.2MHz PWM White LED Driver with OVP in 2mm 2mm MLF and Thin SOT-23
MIC2287 1.2MHz PWM White LED Driver with OVP in 2mm 2mm MLF and Thin SOT-23 General Description The MIC2287 is a 1.2MHz pulse width modulated (PWM), boost-switching regulator that is optimized for constantcurrent,
More informationFeatures. 100k MIC39101 IN OUT GND. 2.5V/1A Regulator with Error Flag
MIC391/3911/3912 MIC391/3911/3912 1A Low-Voltage Low-Dropout Regulator General Description The MIC391, MIC3911, and MIC3912 are 1A low-dropout linear voltage regulators that provide low-voltage, high-current
More informationMIC Features. General Description. Applications. Typical Application. Dual High Side Power Switches
Dual High Side Power Switches General Description The are dual high-side load switches designed for operation between 1.7V to 5.5V. The devices contain a pair of low on-resistance, 115mΩ(max) P-channel
More informationMIC37501/ General Description. Features. Applications. Typical Applications. 5A, Low Voltage μcap LDO Regulator
MIC375/375, Low Voltage μcap LDO Regulator General Description The MIC375 and MIC375 are, low dropout linear voltage regulator that provide low voltage, high current outputs with a minimum of external
More information200mA Low Power Consumption CMOS LDO Regulator CLZ6821/22
General Description The CLZ6821 is a positive LDO regulator designed on patent pending CMOS circuit technologies. The device attains high ripple rejection ratio and superior line and load transient response
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,
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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
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Low Input Voltage, Single-Supply High-Current LDO General Description The Micrel is a 3A output, low input voltage, single-supply regulator. This regulator operates over a single input voltage range of
More informationRT9198/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
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