Low Dropout (LDO) Regulators

STMicroelectronics Low Dropout (LDO) Linear Regulators deliver a stable and regulated output voltage. The LDOs simplify designs with few external components. Low dropout linear regulators provide the best cost-performance tradeoff.

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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 250 mA ultra-low noise LDO
Datasheet
216In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT DFN-4 2.5 V 250 mA 1 Output Positive 250 uA 1.5 V 5.5 V 60 dB Fixed - 40 C + 125 C 120 mV LDLN025 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 3.3V 0.25A Positive
Datasheet
4,382Expected 8/17/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT SOIC-8 3.3 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
6,835Expected 9/22/2026
Min.: 1
Mult.: 1

Through Hole TO-220-3 5 V 1 A 1 Output Positive 20 mA 6 V 16 V Fixed - 40 C + 150 C 250 mV L4941 Tube

STMicroelectronics LDO Voltage Regulators Bicmos Vltg Regulatr Ultra Lo Drop
Datasheet
19,475On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT TO-252-3 3.3 V 1.5 A 1 Output Positive 2.5 mA 2.5 V 6 V Fixed - 40 C + 125 C 40 mV LD39150 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 1 A Very low drop voltage regulator
Datasheet
14,915Expected 8/6/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 Adjustable 1 A 1 Output Positive 200 uA 2.6 V 16 V 62 dB Adjustable - 40 C + 125 C 200 mV LDF Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 300mA Low Quiescent Crnt low noise LDO
Datasheet
28,985Expected 8/6/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 Adjustable 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V Adjustable - 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
17,435On Order
MouseReel Available
Min.: 1
Mult.: 1
: 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 1.2A Low Drop Linear Regulator IC
Datasheet
13,277On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 3.3 V 1.2 A 1 Output Positive 250 uA 2.5 V 18 V 87 dB Fixed - 40 C + 125 C 350 mV LDL212 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 250 mA ultra-low noise LDO
Datasheet
11,286On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 3.3 V 250 mA 1 Output Positive 12 uA 1.5 V 5.5 V 80 dB Fixed - 40 C + 125 C 120 mV LDLN025 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators High Input Volt 85 mA LDO REG
Datasheet
32,869On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-8 1.2 V to 5 V 85 mA 1 Output Positive 3.8 uA 2.5 V 24 V 62 dB Adjustable - 40 C + 125 C 500 mV ST715 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 1.8V 50mA Positive
Datasheet
714In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 150mA Low Qui LN Reg 150mA 1.5, 5.5V 80mV
Datasheet
245In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT FlipChip-4 1.2 V 150 mA 1 Output Positive 35 uA 1.5 V 5.5 V Fixed - 40 C + 125 C 90 mV LD39015J Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 200 mA very low quiescent current Linear regulator IC
Datasheet
858In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

SMD/SMT 2.5 V 200 mA 1 Output Positive 20 uA 1.5 V 5.5 V Fixed - 40 C + 125 C 200 mV LD39020 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA very low quiescent current Linear regulator IC
Datasheet
9,897In Stock
Min.: 1
Mult.: 1
: 10,000

SMD/SMT DFN-4 1.85 V 200 mA 1 Output Positive 100 uA 1.5 V 5.5 V Fixed - 40 C + 125 C 200 mV LD39020 Reel, Cut Tape
STMicroelectronics LDO Voltage Regulators 200 mA very low quiescent current Linear regulator IC
Datasheet
61In Stock
Min.: 1
Mult.: 1
: 10,000

SMD/SMT DFN-1x1-4 3.2 V 200 mA 1 Output Positive 100 uA 1.5 V 5.5 V 55 dB Fixed - 40 C + 125 C 200 mV LD39020 Reel, Cut Tape
STMicroelectronics LDO Voltage Regulators 300 mA very low quiescent current linear regulator IC
Datasheet
3,682In Stock
Min.: 1
Mult.: 1
: 10,000

SMD/SMT DFN-4 2.8 V 300 mA 1 Output Positive 130 uA 1.5 V 5.5 V Fixed - 40 C + 125 C 330 mV LD39030 Reel, Cut Tape
STMicroelectronics LDO Voltage Regulators 300 mA very low quiescent current linear regulator IC
Datasheet
29In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

SMD/SMT DFN-4 5 V 300 mA 1 Output Positive 20 uA 1.5 V 5.5 V Fixed - 40 C + 125 C 300 mV LD39030 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300 mA very low quiescent current linear regulator IC
Datasheet
4,697In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

SMD/SMT DFN-4 2.8 V 300 mA 1 Output Positive 130 uA 1.5 V 5.5 V Fixed - 40 C + 125 C 330 mV LD39030 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300 mA very low quiescent current linear regulator IC
Datasheet
4,601In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

SMD/SMT DFN-4 3.3 V 300 mA 1 Output 1.5 V 5.5 V 80 dB Fixed - 40 C + 125 C 330 mV LD39030 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300mA current Linear Reg IC
Datasheet
13In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
172In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 Bicmos Vltg Regulatr Ultra Lo Drop Lo
Datasheet
1,923In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 Bicmos Vltg Regulatr Ultra Lo Drop Lo
Datasheet
2,324In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 2.8 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 500 mA ultra-low dropout linear regulator with bias supply
Datasheet
294In Stock
Min.: 1
Mult.: 1
: 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
2,879In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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