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 (DKK) 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 300mA Low Quiescent Crnt low noise LDO
Datasheet
1.503In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 3.2 V 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V Fixed - 40 C + 125 C 100 mV AEC-Q100 LDK130 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 300mA low Q LDO 1.9 to 5.5V 100mV
Datasheet
562In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 3.3 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 300 mA low quiescent current very low noise LDO (automotive for SOT23-5L package
Datasheet
6.692In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 3.3 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 300mA current very low noise LDO
Datasheet
4.340In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 Adjustable 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V 55 dB Adjustable - 40 C + 125 C 100 mV LDK130 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300mA current very low noise LDO
Datasheet
4.866In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 3.3 V 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V 55 dB Fixed - 40 C + 125 C 100 mV LDK130 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and low noise LDO
Datasheet
1.509In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-323-5 Adjustable 200 mA 1 Output Positive 60 uA 2.5 V 13.2 V 45 dB Adjustable - 40 C + 125 C 200 mV LDK220 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and low noise LDO
Datasheet
5.460In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-323-5 3.3 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 200 mA low quiescent current and low noise LDO
Datasheet
4.637In Stock
6.000Expected 06/05/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-323-5 5 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 200 mA low quiescent current and low noise LDO
Datasheet
607In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 2.5 V 200 mA 1 Output Positive 60 uA 2.5 V 13.2 V 50 dB Fixed - 40 C + 125 C 200 mV LDK220 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and low noise LDO
Datasheet
4.325In Stock
6.000Expected 06/04/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 3.3 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 200 mA low quiescent current and low noise LDO
Datasheet
7.015In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 3.6 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 200 mA low quiescent current and low noise LDO
Datasheet
8.360In Stock
3.000Expected 19/02/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 4 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 200 mA low quiescent current and low noise LDO
Datasheet
8.067In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 5 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 200 mA low quiescent current and low noise LDO
Datasheet
649In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 Adjustable 200 mA 1 Output Positive 60 uA 2.5 V 13.2 V Adjustable - 40 C + 125 C 100 mV LDK220 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator
Datasheet
719In Stock
6.000Expected 30/03/2026
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 48 dB Fixed - 40 C + 125 C 100 mV LDK320 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator
Datasheet
798In Stock
12.000On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 3.6 V 200 mA 1 Output Positive 60 uA 2.5 V 18 V 88 dB Fixed - 40 C + 125 C 200 mV LDK320 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator
Datasheet
2.330In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 1.8 V 200 mA 1 Output Positive 70 uA 2.5 V 18 V 48 dB Fixed - 40 C + 125 C 200 mV LDK320 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator
Datasheet
4.299In Stock
5.750Expected 12/03/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 3.3 V 200 mA 1 Output Positive 70 uA 2.5 V 18 V 48 dB Fixed - 40 C + 125 C 200 mV LDK320 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 1.2 A low quiescent current LDO with reverse current protection
Datasheet
283In Stock
12.000On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 Adjustable 1.2 A 1 Output Positive 240 uA 1.6 V 5.5 V 53 dB Adjustable - 40 C + 125 C 350 mV LDL112 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 1.2 A low quiescent current LDO with reverse current protection
Datasheet
2.419In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 1.8 V 1.2 A 1 Output Positive 35 uA 1.6 V 5.5 V Fixed - 40 C + 125 C 300 mV LDL112 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 1.2 A low quiescent current LDO with reverse current protection
Datasheet
3.369In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 3.3 V 1.2 A 1 Output Positive 35 uA 1.6 V 5.5 V Fixed - 40 C + 125 C 300 mV LDL112 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 1.2A Low Drop Linear Regulator IC
Datasheet
7.211In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT DFN-6 5 V 1.2 A 1 Output Positive 250 uA 2.5 V 18 V 50 dB Fixed - 40 C + 125 C 350 mV LDL212 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 800 mA ultra low drop, high PSRR voltage regulator
Datasheet
2.705In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2.500

SMD/SMT DFN-8 1.2 V 800 mA 1 Output Positive 150 uA 1 V 5.5 V 30 dB Fixed - 40 C + 125 C 100 mV ST1L08 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 150 mA - ultra low quiescent current linear voltage regulator
Datasheet
98In Stock
12.000On Order
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3.000

SMD/SMT SOT-23-5 2.8 V 150 mA 1 Output Positive 1.4 uA 1.5 V 5.5 V Fixed - 40 C + 125 C 112 mV STLQ015 Reel, Cut Tape, MouseReel

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