Linear Regulators

Linear Regulators from Analog Devices offer customers superior performance in a variety of surface-mount industry-standard packages and include value-add features like thermal overload protection, over-current protection, under-voltage lockout (UVLO), low output noise, quick output discharge (QOD), and shutdown mode that drastically reduces current consumption. Analog Devices Low Drop Out (LDO) linear regulators offer fixed and adjustable output voltage options, up to 2.0 A of output current, and dropout voltages down to 80 mV.

Linear voltage regulators from Analog Devices are backed by online design support, tools and resources to help shorten your design time. Search 18 different parameters to select the best LDO regulator for your design with our handy parametric selection table. Get help and interact with fellow engineers and ADI power experts at the Power Support Community on EngineerZone™. Find a variety of resources for linear regulators including, application notes, technical articles, data sheets, tutorials, a design handbook, webcasts and more. Bookmark this page for your complete linear regulator resource.

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PRODUCT SELECTION TABLES

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Available System Voltage Operating Voltage Rail Load Current
Vin (min) V Vin (max) V Vout V Iout A

Linear Regulator ICs Search Table

Part# Product DescriptionVin min (V)Vin max (V)Vout PresetMax Vout AdjMin Vout AdjIout (max)VdropOut @ Rated IoutSupply Current @ Min LoadNoise @ 10Hz-100kHz# of OutputsOperating Temp RangePackageUS Price 1000-4999
ADP121Reference Circuit Available150 mA, Low Quiescent Current, CMOS Linear Regulator in 5-Lead TSOT2.3V5.5V10 Options 1.2 to 3.33.3V2.2V150mA90mV11µA40µV rms1-40 to +125TSOT-5, WLCSP-4 $0.27
ADP1225.5 V Input, 300 mA, Low Quiescent Current, CMOS Linear Regulator2.3V5.5V9 Options 1.8 to 3.3--300mA85mV45µA25µV rms1-40 to +125TSOT-5 $0.34
ADP1235.5 V Input, 300 mA, Low Quiescent Current, CMOS Linear Regulator w/ Adj. Output Voltage2.3V5.5VNot Applicable5V800mV300mA85mV45µA25µV rms1-40 to +125TSOT-5 $0.34
ADP1245.5 V Input, 500 mA, Low Quiescent Current, CMOS Linear Regulators w/ Selectable Vout Options2.3V5.5V8 Options 1.8 to 3.3--500mA130mV45µA25µV rms1-40 to +125MSOP-8 $0.42
ADP1255.5 V Input, 500 mA, Low Quiescent Current, CMOS Linear Regulators /w Output Adustable 0.8 to 5V2.3V5.5VNot Applicable5V800mV500mA130mV45µA25µV rms1-40 to +125MSOP-8 $0.42
ADP130350 mA, Low VIN, Low Quiescent Current, CMOS Linear Regulator with soft start1.2V3.6V5 Options 0.8 to 2.5--350mA70mV25µA29µV rms1-40 to +125TSOT-5 $0.33
ADP150Reference Circuit AvailableUltralow Noise, 150 mA CMOS Linear Regulator2.2V5.5V8 Options 1.8 to 3.3--150mA-10µA-1-40 to +125TSOT-5, WLCSP-4 $0.31
ADP151Reference Circuit AvailableUltralow Noise, 200 mA, CMOS Linear Regulator2.2V5.5V12 Options 1.1 to 3.3--200mA13V10µA9µV rms1-40 to +125TSOT-5, WLCSP-4 $0.34
ADP160Ultralow Noise, 150 mA CMOS Linear Regulator2.2V5.5V13 Options 1.2 to 4.24.2V1.2V150mA105mV560nA80µV rms1-40 to +125TSOT-5, WLCSP-4 $0.34
ADP161Ultralow Iq, 150 mA CMOS Linear Regulator, Adj Output2.2V5.5V-1.01V990mV150mA105mV560nA80µV rms1-40 to +125TSOT-5 $0.34
ADP162Ultralow Iq, 150 mA CMOS Lin Reg, Fixed Vout, Quick Discharge Output Switch2.2V5.5V11 Options 1.2 to 4.2--150mA105mV560nA80µV rms1-40 to +125TSOT-5, WLCSP-4 $0.34
ADP163Ultralow Iq, 150 mA CMOS Linear Regulator, Adj Vout2.2V5.5VNot Applicable1.01V990mV150mA105mV560nA80µV rms1-40 to +125TSOT-5 $0.34
ADP170300mA, Low Iq, CMOS Low Dropout Regulator1.6V3.6V5 Options 1.2 to 2.83V800mV300mA66mV18µA30µV rms1-40 to +125TSOT-5 $0.33
ADP17061 A, CMOS LDO Linear Regulator w/ Soft Start2.5V5.5V15 Options 0.75 to 3.3--1A365mV50µA125µV rms1-40 to +125LFCSP-8, SOIC-8 $1.09
ADP17071 A, LDO CMOS Linear Regulator w/ Tracking2.5V5.5V16 Options 0.75 to 3.33.3V750mV1A-50µA-1-40 to +125LFCSP-8, SOIC-8 $1.12
ADP17081 A, Low Dropout, CMOS Linear Regulator2.5V5.5VNot Applicable5V800mV1A365mV50µA125µV rms1-40 to +125LFCSP-8, SOIC-8 $1.09
ADP171300mA, Low Iq, CMOS LDO Linear Regulator w/ Adj Vout1.6V3.6VNot Applicable3V800mV300mA66mV18µA30µV rms1-40 to +125TSOT-5 $0.33
ADP1710150 mA, LDO CMOS Linear Regulator w/ 16 Vout Preset Options or Adj 0.8 to 5V Version2.5V5.5V16 Options 0.75 to 3.35V800mV150mA150mV35µA40µV rms1-40 to +125TSOT-5 $0.41
ADP1711150 mA, LDO CMOS, Linear Reg w/ 16 Vout Preset Options & Ref Bypass2.5V5.5V16 Options 0.75 to 3.3--150mA150mV35µA40µV rms1-40 to +125TSOT-5 $0.45
ADP1712300 mA, LDO CMOS Linear Regulator w/Soft Start2.5V5.5V16 Options 0.75 to 3.35V750mV300mA170mV60µA40µV rms1-40 to +125TSOT-5 $0.47
ADP1713300 mA, LDO CMOS Linear Regulator w/ Reference Bypass2.5V5.5V16 Options 0.75 to 3.33.3V750mV300mA170mV60µA40µV rms1-40 to +125TSOT-5 $0.49
ADP1714300 mA, LDO CMOS Linear Regulator w/ Exl-Voltage Tracking Capability2.5V5.5V16 Options 0.75 to 3.33.3V750mV300mA170mV60µA40µV rms1-40 to +125TSOT-5 $0.51
ADP1715500 mA LDO CMOS Linear Regulator w/ Soft Start2.5V5.5V16 Options 0.75 to 3.35V800mV500mA250mV65µA125µV rms1-40 to +125MSOP-8 $0.83
ADP1716500mA, CMOS LDO Linear Regulator w/ Tracking2.5V5.5V16 Options 0.75 to 3.3--500mA250mV65µA125µV rms1-40 to +125MSOP-8 $0.97
ADP172300 mA, Low Iq, CMOS Linear Regulator1.6V3.6V8 Options 1 to 33V800mV300mA50mV23µA30µV rms1-40 to +125WLCSP-4 $0.33
ADP1720Reference Circuit Available50 mA, High-Voltage, Micropower Linear Regulator4V28V3.3, 5.05V1.225V50mA275mV28µA-1-40 to +125MSOP-8 $0.62
ADP17402 A, Low Vin LDO CMOS Linear Regulator1.6V3.6V7 Options 0.75 to 2.5--2A160mV90µA23µV rms1-40 to +125LFCSP-16 $1.2
ADP1741Reference Circuit Available2A Low-Vin, Adjustable-Vout LDO Regulator1.6V3.6VNot Applicable3V750mV2A160mV90µA23µV rms1-40 to +125LFCSP-16 $1.2
ADP1752800mA Low-Vin, Low Dropout Linear Regulator1.6V3.6V7 Options 0.75 to 2.5--800mA70mV90µA23µV rms1-40 to +125LFCSP-16 $0.9
ADP1753800mA Low-Vin, Adjustable-Vout LDO Regulator w/ Soft Start1.6V3.6VNot Applicable3V750mV800mA70mV90µA23µV rms1-40 to +125LFCSP-16 $0.9
ADP17541.2A, Low-Vin, Low Dropout Linear Regulator1.6V3.6V7 Options 0.75 to 2.52.5V750mV1.2A105mV90µA23µV rms1-40 to +125LFCSP-16 $0.95
ADP17551.2A, Low-Vin, Adj-Vout, LDO Regulator1.6V3.6VNot Applicable3V750mV1.2A105mV90µA23µV rms1-40 to +125LFCSP-16 $0.95
ADP2140600mA Buck with 300mA LDO1.65V5.5V7 Options 1.2 to 3.3--300mA110mV65µA29µV rms2-40 to +125LFCSP-10 $1.2
ADP220200mA, High PSRR, Dual LDO Linear Regulator2.5V5.5V12 Options 1.1 to 3.3--200mA150V60µA27µV rms2-40 to +125WLCSP-6 $0.58
ADP221200mA, High PSRR, Dual LDO Linear Regulator w/pull down2.3V5.5V11 Options 1.1 to 3.3--200mA150mV60µA27V rms2-40 to +125WLCSP-6 $0.58
ADP222Fixed Dual 300mA Lo Noise Hi PSRR CMOS Linear Regulator2.5V5.5V8 Options 1.2 to 3.3--300mA170mV75µA27µV rms2-40 to +125LFCSP-8 $0.49
ADP223Adj 300mA, Lo Noise, Hi PSRR Dual CMOS Linear Regulator2.5V5.5VNot Applicable5.5V500mV300mA170mV75µA27µV rms2-40 to +125LFCSP-8 $0.49
ADP224Fixed Dual 300mA Lo Noise Hi PSRR CMOS Linear Regulator2.5V5.5V1.8, 2.8--300mA170mV75µA27µV rms2-40 to +125LFCSP-8 $0.49
ADP225Adj Dual 300mA Lo Noise Hi PSRR CMOS Linear Regulator2.5V5.5VNot Applicable5.5V500mV300mA170mV75µA27µV rms2-40 to +125LFCSP-8 $0.49
ADP320Triple, 200 mA, Lo Noise, Hi PSRR Voltage Regulator1.8V5.5V1.5, 1.8, 3.35.5V1.8V200mA110mV85µA29µV rms3-40 to +125LFCSP-16 $0.54
ADP322Triple, 200 mA, Lo Noise, Hi PSRR Voltage Regulator, Fixed Vout1.8V5.5V5 Options 1.2 to 3.33.3V1.8V200mA110mV85µA29µV rms3-40 to +125LFCSP-16 $0.54
ADP323Triple, 200 mA, Lo Noise, Hi PSRR Vltg Regulator, Individually Adj Vout1.8V5.5VNot Applicable5.5V1.8V200mA110mV85µA29µV rms3-40 to +125LFCSP-16 $0.54
ADP3300High Accuracy, anyCAP®, 50 mA, LDO Regulator3V12V6 Options 2.7 to 55V2.7V50mA-55µA-1-40 to +85SOT23-6 $0.59
ADP3301Reference Circuit AvailableHigh Accuracy, anyCAP®, 100 mA, LDO Linear Regulator3V12V5 Options 2.7 to 55V2.7V100mA-180µA-1-20 to +85SOIC-8 $1.06
ADP3303Reference Circuit AvailableHigh Accuracy, anyCAP®, 200 mA, LDO Linear Regulator3.2V12V5 Options 2.7 to 55V2.7V200mA-250µA-1-20 to +85SOIC-8 $1.11
ADP3309anyCAP®, 100 mA, LDO Linear Regulator2.8V12V7 Options 2.5 to 3.63.6V2.5V100mA-190µA-1-20 to +85SOT23-5 $0.7
ADP3330Reference Circuit AvailableHigh Accuracy, Ultralow Iq, 200 mA, anyCAP® LDO Regulator in SOT232.9V12V7 Options 2.5 to 55V2.5V200mA-34µA-1-40 to +85SOT23-6 $0.82
ADP3331Adjustable 1.5V-10V Output, Ultralow Iq, 200 mA, anyCAP® LDO Regulator in SOT-232.6V12VNot Applicable11.75V1.5V200mA-34µA-1-40 to +85SOT23-6 $0.82
ADP3333Reference Circuit AvailableHigh Accuracy Ultralow Iq, 300 mA, anyCAP® LDO Regulator2.6V12V8 Options 1.5 to 51.5V5V300mA-70µA-1-40 to +85MSOP-8 $0.83
ADP3334Reference Circuit AvailableAdj 1.5V-10V Vout, High Accuracy, Low Iq, 500 mA anyCAP­®LDO Regulator2.6V11VNot Applicable11.75V1.5V500mA-150µA-1-40 to +85LFCSP-8, MSOP-8, SOIC-8 $0.87
ADP3335High Accuracy, Ultralow Iq, 500mA, anyCAP® LDO Regulator2.6V12V6 Options 1.5 to 3.35V1.8V500mA-80µA-1-40 to +85LFCSP-8, MSOP-8 $0.91
ADP3336Reference Circuit AvailableSmall, Adj 1.5V-10V Output, 500 mA anyCAP® LDO Linear Regulator2.6V12VNot Applicable10V1.5V500mA-80µA-1-40 to +85MSOP-8 $0.92
ADP3338Reference Circuit AvailableHi Accuracy, Ultralow Iq, 1A, anyCAPT LDO Linear Regulator2.7V8V7 Options 1.5 to 55V1.5V1A190mV110µA95µV rms1-40 to +85SOT-223 $1.1
ADP3339Reference Circuit AvailableHi-Accuracy, Ultralow Iq, 1.5 A, anyCAP® LDO Regulator2.8V6V7 Options 1.5 to 55V1.5V1.5A-130µA-1-40 to +85SOT-223 $1.53
ADP3367Fixed +5V/Adj 1.3V-16V, LDO Linear Regulator2.5V16.5V5.016V1.3V300mA-17µA-1-40 to +85SOIC-8 $1.81
ADP5030Dual LDO (Vout=1.2V, 2.8V) w/ Load Switch-----200mA-60µA-2-40 to +125WLCSP-16 $0.85
ADP667Fixed +5V or Adj 1.3V-16V Vout, LDO Linear Regulator w/ Dropout Detection3.5V16.5V5.016.5V1.3V250mA-20µA-1-40 to +85Plastic DIP-8, SOIC-8 $1.81
ADP7102Reference Circuit Available20V, 300 mA, Low Noise, CMOS LDO3.3V20V7 Options 1.5 to 9-1.22V300mA200mV400µA15µV rms1-40 to +125LFCSP-8, SOIC-8 $1.34
ADP710420V, 500 mA, Low Noise, CMOS LDO3.3V20V7 Options 1 to 9-1.22V500mA350mV400µA15µV rms1-40 to +125LFCSP-8, SOIC-8 $1.67
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Multi-Output Regulators with Linear Regulators

Part Number Description Number of Outputs Topology Output Current (mA) Vin: (min) (V) Vin: (max) (V) Vout Preset (V) Vout Adj (min) (V) Vout Adj (max) (V) Key Features Package Pricing ($@1k)
ADP2140 600mA Buck + 300mA LDO 2 LDO 300 1.65 5.5 1.2, 1.5, 1.8, 2.5, 2.8, 3.3 - - Auto Sequenicing, Power Good, Power Save Mode 10-LFCSP 1.2
ADP5020 General Purpose PMU 3 LDO 1 150 2.3 5.5 1.8, 2.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3 - - I2C, Programmable Outputs, Supervisor, Ext. Sync 20-LFCSP 1.5
ADP5022 Dual 3Mhz Buck with 150mA LDO 3 LDO 150 1.7 5.5 1.2, 1.5, 1.55, 1.6, 1.65, 1.7, 1.75, 1.8, 1.875, 2.0, 2.5, 2.775, 2.8, 2.9, 3.0, 3.3 - - Mode Pin, Individual Enable Pins 16-WLCSP 1.8
ADP5023 Dual 3 MHz, 800mA Buck with One 300 mA LDO 3 LDO 300 1.7 5.5 1.2 0.8 4.75 - 24-LFCSP 1.59
ADP5024 Dual 1.2A Buck + 300mA LDO 3 LDO 300 1.7 5.5 1.2, 1.8, 3.3 0.8 4.75 Mode pin, Individual Enable Pins 24-LFCSP 1.79
ADP5033 Dual 3Mhz Buck Regulator with Dual LDO 4 LDO x 2 300 1.7 5.5 1.2, 1.5, 1.55, 1.6, 1.65, 1.7, 1.75, 1.8, 1.875, 2.0, 2.5, 2.775, 2.8, 2.9, 3.0, 3.3 - - Mode pin, Two Enable Pins 16-LFCSP 1.9
ADP5034 Dual 3Mhz 1.2A Buck Regulator with 300mA Dual LDO 4 LDO x 2 300 1.7 5.5 1.2, 1.8, 2.8, 3.3 0.8 4.75 Mode pin, Individual Enable Pins 24-LFCSP;28-TSSOP 1.99
ADP5037 Dual 3Mhz 800mA Buck Regulator with Dual 300mA LDO 4 LDO x 2 300 1.7 5.5 1.2, 1.8, 2.8, 3.3 0.8 4.75 Mode pin, Individual Enable Pins 24-LFCSP 1.69
ADP5040 3Mhz Buck Regulator with Dual LDO 3 LDO x 2 300 1.7 5.5 - 0.8 4.75 Individual Enable Pins, Mode Pin 20-LFCSP 1.39
ADP5041 3Mhz Buck Regulator with Dual LDO, Supervisor and Watchdog Timer 3 LDO x 2 300 1.7 5.5 - 0.8 4.75 Individual Enable Pins and Supervisor/WDI, Mode Pin and MR pin 20-LFCSP 1.79
ADP5042 3Mhz Buck Regulator with Dual LDO, Supervisor and Dual Watchdog Timers 3 LDO x 2 300 1.7 5.5 0.8, 0.9, 1.0, 1.1, 1.2, 1.5, 1.6, 1.7, 1.8, 2.0, 2.25, 2.5, 2.8, 3.0, 3.3 - - Individual Enable Pins and Supervisorm, WDI WDI2, Mode Pin and MR pin 20-LFCSP 1.99
ADP5043 3Mhz Buck Regulator with LDO, Supervisor and Dual Watchdog Timers 2 LDO 300 1.7 5.5 0.8, 0.9, 1.0, 1.1, 1.2, 1.5, 1.6, 1.7, 1.8, 2.0, 2.25, 2.5, 2.8, 3.0, 3.3 - - Individual Enable Pins and Supervisorm, WDI WDI2, Mode Pin and MR pin 20-LFCSP 1.79
ADP5045 Boost, buck-boost, triple buck, and dual LDO 7 LDO x 2 150, 50 2.8 5.5 - 1.5 3.5 I2C, Programmable Power Seqiencing, Soft Start, Output Voltages and RTC. 25mA LED Driver 64-WLCSP 4.99
ADP5050 5-Channel Integrated Power Solution with Quad Buck Regulators, 200 mA LDO, I2C 5 LDO 200 1.7 5.5 - 0.5 4.75 Individual Precision Enable pins, Power Good pins, LDO, I2C 48-LFCSP 4.39
ADP5052 5-Channel Integrated Power Solution with Quad Buck Regulators and 200 mA LDO 5 LDO 200 1.7 5.5 - 0.5 4.75 Individual Precision Enable pins, Power Good pins, LDO 48-LFCSP 3.59

NEW PRODUCTS

  • ADP7182- -30V, 200mA, Low Noise, Linear Regulator
    ADP7182:-30V, 200mA, Low Noise, Linear Regulator

    The ADP7182 is a CMOS, low dropout (LDO) linear regulator that operates from −2.7 V to −28 V and provides up to −200 mA of output current. This high input voltage LDO is ideal for regulation of high performance analog and mixed signal circuits operating from −27 V down to −1.22 V rails. Using an advanced proprietary architecture, it provides high power supply rejection and low noise, and achieves MoreRead more

    Data Sheet Rev A, 05/2013 (pdf 790kB)
    ADP7182 Diagram
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