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 (SGD) 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 150mA Voltage Reg. Lo-quiescnt Lo-noise
Datasheet
2,293In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 800 mV 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 200 mA very low quiescent current linear regulator IC in (0.47x0.47) mm² ST
Datasheet
9,451In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 15,000

SMD/SMT STSTAMP-4 1.8 V 200 mA 1 Output 100 uA 1.5 V 5.5 V 55 dB Fixed - 40 C + 125 C 200 mV LDBL20 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA very low quiescent current Linear regulator IC
Datasheet
9,533In Stock
Min.: 1
Mult.: 1
: 10,000

SMD/SMT DFN-4 1.1 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 200 mA very low quiescent current Linear regulator IC
Datasheet
8,735In Stock
Min.: 1
Mult.: 1
: 10,000

SMD/SMT DFN-4 4.7 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 in (0.47x0.47) mm² ST
Datasheet
9,537In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 15,000

SMD/SMT STSTAMP-4 2.5 V 200 mA 1 Output Positive 100 uA 1.5 V 5.5 V 55 dB Fixed - 40 C + 125 C 200 mV LDBL20 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 3.3V 0.25A Positive
Datasheet
2,843In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT TO-252-3 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 1.5A Positive
Datasheet
4,297In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SMD/SMT D2PAK-3 (TO-263-3) 5 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 3.3V 50mA Positive
Datasheet
5,448In Stock
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 3.3V 100mA Positive
Datasheet
8,276In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT SOT-89-3 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 3.3V 100mA Positive
Datasheet
5,922In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT SOT-89-3 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
6,650In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT SOT-89-3 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

STMicroelectronics LDO Voltage Regulators 150mA Lo Quiescent Lo Noise Vltg Reg
Datasheet
5,084In Stock
9,000Expected 2/9/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 1.2 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 200 mA very low quiescent current Linear regulator IC
Datasheet
44,090In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 3 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, MouseReel

STMicroelectronics LDO Voltage Regulators 200 mA very low quiescent current Linear regulator IC
Datasheet
16,600In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 10,000

SMD/SMT 3.3 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 ADJ FRM 0.8V LDO 500mA
Datasheet
6,752In Stock
9,000Expected 16/9/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 800 mV 500 mA 1 Output Positive 50 uA 1.5 V 5.5 V Adjustable - 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
10,086In Stock
9,000Expected 9/9/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 1.2 V 1 A 1 Output Positive 200 uA 1.5 V 5.5 V Fixed - 40 C + 125 C 200 mV AEC-Q100 LD39100 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 1 A low quiescent current low noise voltage regulator
Datasheet
3,208In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 3.3 V 1 A 1 Output Positive 200 uA 1.5 V 5.5 V Fixed - 40 C + 125 C 200 mV AEC-Q100 LD39100 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300mA current Linear Reg IC
Datasheet
6,391In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT FlipChip-4 3.3 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 quiescent current Linear regulator IC with automatic Green mode
Datasheet
4,418In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT DFN-6 Adjustable 300 mA 1 Output Positive 45 uA 1.4 V 5.5 V 65 dB Adjustable - 40 C + 125 C 300 mV LD39130S Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators Bicmos Vltg Regulatr Ultra Lo Drop
Datasheet
2,879In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT TO-252-5 1.22 V to 5 V 1.5 A 1 Output Positive 2.5 mA 2.5 V 6 V Adjustable - 40 C + 125 C 40 mV LD39150 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators Ultralow drop BICMOS Volt REG 2.5V to 6V
Datasheet
3,310In 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 2.5 V 6 V Adjustable - 40 C + 125 C 200 mV LD39150 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 2 A high PSRR ultra low drop linear regulator with reverse current protection
Datasheet
18,533In 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

STMicroelectronics LDO Voltage Regulators BICMOS VOLT REG
Datasheet
32,923In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 3.3 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 1A Ultra Low-Dropout regulator with Reverse Current Protection
Datasheet
3,696In Stock
9,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-8 Adjustable 1 A 1 Output Positive 280 uA 2.2 V 5.5 V 70 dB Adjustable - 40 C + 125 C 200 mV LD59100 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 150mA Capless Ultra Low REG 50mV 100mA
Datasheet
14,407In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 Adjustable 150 mA 1 Output Positive 120 uA 1.8 V 5.5 V Adjustable - 40 C + 125 C 50 mV LDCL015 Reel, Cut Tape, MouseReel