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 (JPY) 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 200 mA low quiescent Very low noise LDO
Datasheet
11,569In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 3.3 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 300mA Low Quiescent Crnt low noise LDO
Datasheet
10,379In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 1.8 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
12,079In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 200 mA low quiescent current and low noise LDO
Datasheet
24,984In Stock
69,000Expected 8/13/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 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 low noise LDO
Datasheet
11,064In 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
20,458In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT SOT-89-3 5 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
25,926In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT SOT-89-4 5 V 200 mA 1 Output Positive 200 nA 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
9,033In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
7,954In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 1.2A Low Drop Linear Regulator IC
Datasheet
40,251In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT SOIC-8 Adjustable 1.2 A 1 Output Positive 250 uA 2.5 V 18 V Adjustable - 40 C + 125 C 350 mV LDL212 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 1.2A Low Drop Linear Regulator IC
Datasheet
64,379In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 Adjustable 1.2 A 1 Output Positive 380 uA 2.5 V 18 V 87 dB, 75 dB Adjustable - 40 C + 125 C 350 mV LDL212 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 1.2A Low Drop Linear Regulator IC
Datasheet
14,633In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 Adjustable 1.2 A 1 Output Positive 250 uA 2.5 V 18 V 50 dB Adjustable - 40 C + 125 C 350 mV LDL212 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 400 mA, 38 V low-dropout regulator, with 45uAA quiescent current
Datasheet
2,401In Stock
6,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 3.3 V 400 mA 1 Output Positive 45 uA 3.5 V 38 V 77 dB Fixed - 40 C + 125 C 140 mV AEC-Q100 LDO40L Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 3.3V 200mA Linear
Datasheet
4,091In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 3.3 V 150 mA 1 Output Positive 250 uA 3.8 V 14 V Fixed - 40 C + 125 C 170 mV LK112S Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 5V 100mA Linear
Datasheet
6,665In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 5 V 150 mA 1 Output Positive 250 uA 5.5 V 14 V Fixed - 40 C + 125 C 170 mV LK112S Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 150 mA - ultra low quiescent current linear voltage regulator
Datasheet
15,434In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 2.5 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 150 mA - ultra low quiescent current linear voltage regulator
Datasheet
16,280In Stock
3,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 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 150 mA - ultra low quiescent current linear voltage regulator
Datasheet
7,306In Stock
3,000Expected 8/31/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 3 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 VLDO 0.4V 250mA Low Quiescent SO-8
Datasheet
724In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT SOIC-8 3.3 V 250 mA 1 Output Positive 600 uA 2 V 20 V Fixed - 40 C + 125 C 400 mV AEC-Q100 L4931 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 1.5A Regulator Lo Drop
Datasheet
1,001In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SMD/SMT D2PAK-3 (TO-263-3) 12 V 1.5 A 1 Output Positive 30 mA 6 V 17 V Fixed - 40 C + 150 C 200 mV L4940 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 5.0V 50mA Positive
Datasheet
280In Stock
15,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 5 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 3.3V 50mA Positive
Datasheet
528In Stock
24,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 3.3 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 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 3.3V 100mA Positive
Datasheet
2,630In Stock
3,000Expected 9/21/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 3.3 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 5.0V 100mA Positive
Datasheet
4,170In Stock
6,000Expected 3/15/2027
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 5 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