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 Ultralow drop BICMOS Volt REG 2.5V to 6V
Datasheet
3 482In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

SMD/SMT DFN-6 1.22 V to 5 V 1.5 A 1 Output Positive 1 mA Adjustable - 40 C + 125 C 200 mV LD39150 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator
Datasheet
54 089In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

SMD/SMT SOT-23-5 Adjustable 200 mA 1 Output Positive 70 uA 58 dB Adjustable - 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
10 680In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

SMD/SMT SOT-23-5 3.3 V 200 mA 1 Output Positive 70 uA 48 dB Fixed - 40 C + 125 C 200 mV LDK320 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators BICMOS 300mA V Reg Ultra Lo Drop Lo
Datasheet
4 590In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

SMD/SMT TSOT-23-5 1.8 V 300 mA 1 Output Positive 150 uA Fixed - 40 C + 125 C 400 uV LDS3985 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 150 mA - ultra low quiescent current linear voltage regulator
Datasheet
8 955In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

SMD/SMT SOT-23-5 2.1 V 150 mA 1 Output Positive 1.4 uA Fixed - 40 C + 125 C 112 mV STLQ015 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators IC Regulator LN 150MA, 2.5V
Datasheet
13 461In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

SMD/SMT SOT-23-5 2.5 V 150 mA 1 Output Positive 50 uA Fixed - 40 C + 125 C 80 mV LD39015 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 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 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 661In Stock
Min.: 1
Mult.: 1
: 3 000

SMD/SMT DFN-4 1.1 V 500 mA 1 Output Positive 27 uA 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 55 dB Fixed - 40 C + 125 C AEC-Q100 LDK130 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 3.0V 100mA Positive
Datasheet
2 290In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

SMD/SMT SOT-23-5 3 V 100 mA 1 Output Positive 100 uA 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 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 Fixed - 40 C + 125 C 500 mV LK112S Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators Bicmos Vltg Regulatr Ultra Lo Drop Lo
Datasheet
3 107In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

SMD/SMT SOT-23-5 3 V 150 mA 1 Output Positive 150 uA Fixed - 40 C + 125 C 400 uV LD3985 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 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 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 48 dB Fixed - 40 C + 125 C 100 mV LDK320 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 Fixed - 40 C + 125 C 112 mV STLQ015 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 Fixed - 40 C + 125 C 200 mV LD39100 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 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 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 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 788In Stock
157 500Expected 13/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4 500

SMD/SMT DFN-8 Adjustable 2 A 1 Output Positive 1 mA 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
26 910In 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 40 dB Fixed - 40 C + 125 C 130 mV LD39200 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 1.5 A Low Dropout Linear Regulator with Programmable Soft-Start
Datasheet
28 507In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4 000

SMD/SMT DFN-10 800 mV to 3.6 V 1.5 A 1 Output Positive 70 dB Adjustable - 40 C + 125 C 65 mV AEC-Q100 LD59150 Reel, Cut Tape, MouseReel