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 (EUR) 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 current very low noise LDO
Datasheet
14.848In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT SOT-23-5 800 mV 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 5.0V 0.25A Positive
Datasheet
7.387In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

SMD/SMT TO-252-3 5 V 250 mA 1 Output Positive 600 uA 4 V 20 V Fixed - 40 C + 125 C 400 mV L4931 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 5.0V 1.0A Positive
Datasheet
6.506In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

SMD/SMT TO-252-3 5 V 1 A 1 Output Positive 20 mA 6 V 16 V Fixed - 40 C + 150 C 250 mV L4941 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 150mA Lo Quiescent Lo Noise Vltg Reg
Datasheet
24.019In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT SOT-23-5 1 V 150 mA 1 Output Positive 50 uA 1.5 V 5.5 V Fixed - 40 C + 125 C 80 mV LD39015 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 2.5V 500mA ULTRA LDO
Datasheet
4.997In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT DFN-6 2.5 V 500 mA 1 Output Positive 50 uA 1.5 V 5.5 V Fixed - 40 C + 125 C 200 mV LD39050 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 1 A low quiescent current low noise voltage regulator
Datasheet
5.283In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT DFN-6 2.5 V 1 A 1 Output Positive 200 uA 1.5 V 5.5 V 65 dB Fixed - 40 C + 125 C 200 mV AEC-Q100 LD39100 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and low noise LDO
Datasheet
11.663In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT DFN-6 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 high PSRR voltage regulator
Datasheet
29.661In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT SOT-23-5 12 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 A low quiescent current low noise voltage regulator
Datasheet
2.702In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

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

STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current very low noise LDO
Datasheet
5.140In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT SOT-23-5 1 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 Very low noise LDO
Datasheet
8.433In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT SOT-23-5 1.8 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 500 mA ultra-low dropout linear regulator with bias supply
Datasheet
5.711In Stock
Min.: 1
Mult.: 1
: 3.000

SMD/SMT DFN-4 1.1 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 300mA current very low noise LDO
Datasheet
6.126In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT SOT-23-5 1.5 V 300 mA 1 Output 1.9 V 5.5 V 55 dB Fixed - 40 C + 125 C AEC-Q100 LDK130 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 150 mA - ultra low quiescent current linear voltage regulator
Datasheet
4.266In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT SOT-23-5 1.5 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 300mA current very low noise LDO
Datasheet
5.407In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT DFN-6 1.5 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 300mA current very low noise LDO
Datasheet
5.996In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT DFN-6 2.5 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 high PSRR voltage regulator
Datasheet
5.956In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 3.0V 100mA Positive
Datasheet
2.370In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT SOT-23-5 3 V 100 mA 1 Output Positive 100 uA 2.5 V 16 V Fixed - 40 C + 125 C 1 mV LD2981 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators BICMOS 300mA V Reg Ultra Lo Drop Lo
Datasheet
2.845In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT TSOT-23-5 2.5 V 300 mA 1 Output Positive 150 uA 2.5 V 6 V Fixed - 40 C + 125 C 400 uV LDS3985 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 1.8V 200mA Linear
Datasheet
2.288In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT SOT-23-5 1.8 V 200 mA 1 Output Positive 250 uA 2.5 V 14 V Fixed - 40 C + 125 C 500 mV LK112S Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 500 mA low quiescent current and low noise voltage regulator
Datasheet
4.238In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 300mA current Linear Reg IC
Datasheet
8.004In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5.000

SMD/SMT FlipChip-4 2.5 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 300 mA very low dropout linear regulator IC
Datasheet
13.035In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5.000

SMD/SMT DFN-4 1.2 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 2 A high PSRR ultra low drop linear regulator with reverse current protection
Datasheet
35.880In Stock
157.500Expected 11/13/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4.500

SMD/SMT DFN-8 Adjustable 2 A 1 Output Positive 1 mA 1.25 V 6 V 40 dB Adjustable - 40 C + 125 C 130 mV LD39200 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 2 A high PSRR ultra low drop linear regulator with reverse current protection
Datasheet
27.163In Stock
48.000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

SMD/SMT DFN-6 3.3 V 2 A 1 Output Positive 1 mA 1.25 V 6 V 40 dB Fixed - 40 C + 125 C 130 mV LD39200 Reel, Cut Tape, MouseReel