Ultralow Dropout LDOs

STMicroelectronics Ultra Low Dropout LDOs are a wide range of low and medium-power LDO regulators with ultralow dropout and fast transient response. These ultralow LDOs simplify the design of high-efficiency, cost-effective linear power management (from 50mA to 3A of continuous load current). This makes them ideal for DSPs, MCUs, and FPGAs.

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Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
Package/Case
Output Voltage
Output Current
Number of Outputs
Polarity
Quiescent Current
Input Voltage - Min
Input Voltage - Max
PSRR / Ripple Rejection - Typ
Output Type
Minimum Operating Temperature
Maximum Operating Temperature
Dropout Voltage
Qualification
Series
Packaging

STMicroelectronics LDO Voltage Regulators Ultra Low BiCMOS ESR 2.5V to 6V 150mA
Datasheet
27In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 4.7 V 150 mA 1 Output Positive 150 uA 2.5 V 6 V Fixed - 40 C + 125 C 400 uV LD3985 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200mA Low Quiescent Crnt low noise LDO
Datasheet
4.262In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 3 V 200 mA 1 Output Positive 50 uA 1.9 V 5.5 V Fixed - 40 C + 125 C 100 mV LDK120 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 300 mA low quiescent current very low noise LDO (automotive for SOT23-5L package
Datasheet
2.515In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 2.9 V 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V 55 dB Fixed - 40 C + 125 C 100 mV AEC-Q100 LDK130 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator
Datasheet
2.971In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 3 V 200 mA 1 Output Positive 70 uA 2.5 V 18 V Fixed - 40 C + 125 C 100 mV LDK320 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 500 mA low quiescent current and low noise voltage regulator
Datasheet
4.518In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 800 mV to 4.5 V 500 mA 1 Output Positive 100 uA 1.5 V 5.5 V Adjustable - 40 C + 125 C 200 mV LD39050 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and low noise LDO
Datasheet
1.389In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-323-5 2.7 V 200 mA 1 Output Positive 55 uA 2.5 V 13.2 V Fixed - 40 C + 125 C 100 mV LDK220 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 1 A low quiescent current low noise voltage regulator
Datasheet
5.780Expected 29/04/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 1.2 V 1 A 1 Output Positive 200 uA 1.5 V 5.5 V Fixed - 40 C + 125 C 200 mV AEC-Q100 LD39100 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 1.8V 50mA Positive
Datasheet
1.414In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 1.8 V 50 mA 1 Output Positive 100 uA 2.5 V 16 V Fixed - 40 C + 125 C 7 mV LD2980 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators Bicmos Vltg Regulatr Ultra Lo Drop Lo
Datasheet
2.431In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 1.22 V 150 mA 1 Output Positive 150 uA 2.5 V 6 V Fixed - 40 C + 125 C 400 uV LD3985 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300mA current Linear Reg IC
Datasheet
13In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5.000

SMD/SMT FlipChip-4 1 V 300 mA 1 Output Positive 45 uA 1.4 V 5.5 V 70 dB Fixed - 40 C + 125 C 300 mV LD39130S Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300mA current Linear Reg IC
Datasheet
542In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5.000

SMD/SMT FlipChip-4 2.9 V 300 mA 1 Output Positive 45 uA 1.4 V 5.5 V 70 dB Fixed - 40 C + 125 C 300 mV LD39130S Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 500 mA ultra-low dropout linear regulator with bias supply
Datasheet
294In Stock
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-4 1.05 V 500 mA 1 Output Positive 27 uA 800 mV 5.5 V Fixed - 40 C + 85 C 80 mV LD56050 Reel, Cut Tape
STMicroelectronics LDO Voltage Regulators 300 mA very low dropout linear regulator IC
Datasheet
3.129In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5.000

SMD/SMT DFN-4 1.8 V 300 mA 1 Output Positive 28 uA 1.5 V 5.5 V 75 dB Fixed - 40 C + 125 C 135 mV LD59030 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300 mA very low dropout linear regulator IC
Datasheet
1.948In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5.000

SMD/SMT DFN-4 2.5 V 300 mA 1 Output Positive 28 uA 1.5 V 5.5 V 75 dB Fixed - 40 C + 125 C 135 mV LD59030 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300 mA very low dropout linear regulator IC
Datasheet
3.850In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5.000

SMD/SMT DFN-4 2.8 V 300 mA 1 Output Positive 28 uA 1.5 V 5.5 V 75 dB Fixed - 40 C + 125 C 135 mV LD59030 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300 mA very low dropout linear regulator IC
Datasheet
17In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5.000

SMD/SMT DFN-4 3 V 300 mA 1 Output Positive 305 uA 1.5 V 5.5 V 75 dB Fixed - 40 C + 125 C 155 mV LD59030 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200mA Low Quiescent Crnt low noise LDO
Datasheet
2.570In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-323-5 800 mV 200 mA 1 Output Positive 50 uA 1.9 V 5.5 V Fixed - 40 C + 125 C 150 mV LDK120 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200mA Low Quiescent Crnt low noise LDO
Datasheet
2.758In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-323-5 1 V 200 mA 1 Output Positive 50 uA 1.9 V 5.5 V Fixed - 40 C + 125 C 150 mV LDK120 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent Very low noise LDO
Datasheet
2.295In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-323-5 1.1 V 200 mA 1 Output Positive 100 uA 1.9 V 5.5 V Fixed - 40 C + 125 C 100 mV LDK120 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent Very low noise LDO
Datasheet
2.344In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-323-5 1.5 V 200 mA 1 Output Positive 100 uA 1.9 V 5.5 V Fixed - 40 C + 125 C 100 mV LDK120 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent Very low noise LDO
Datasheet
1.824In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-323-5 2.5 V 200 mA 1 Output Positive 100 uA 1.9 V 5.5 V Fixed - 40 C + 125 C 100 mV LDK120 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200mA Low Quiescent Crnt low noise LDO
Datasheet
3.000In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-323-5 3.1 V 200 mA 1 Output Positive 50 uA 1.9 V 5.5 V Fixed - 40 C + 125 C 150 mV LDK120 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200mA current very low noise LDO
Datasheet
1.545In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-323-5 3.2 V 200 mA 1 Output Positive 50 uA 1.9 V 5.5 V 55 dB Fixed - 40 C + 125 C 150 mV LDK120 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current very low noise LDO
Datasheet
2.468In Stock
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT 800 mV 200 mA 1 Output Positive 100 uA 1.9 V 5.5 V Fixed - 40 C + 125 C 100 mV LDK120 Reel, Cut Tape
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent Very low noise LDO
Datasheet
2.733In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 1.1 V 200 mA 1 Output Positive 100 uA 1.9 V 5.5 V Fixed - 40 C + 125 C 100 mV LDK120 Reel, Cut Tape, MouseReel