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 (USD) 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 1A Ultra Low-Dropout regulator with Reverse Current Protection
Datasheet
3,696In Stock
9,000Expected 9/15/2026
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
7,907In 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
STMicroelectronics LDO Voltage Regulators 500 mA very low drop voltage regulator
Datasheet
5,147In Stock
6,000Expected 9/7/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 3.3 V 500 mA 1 Output Positive 200 uA 2.5 V 16 V Fixed - 40 C + 125 C 125 mV LDFM Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 500 mA very low drop voltage regulator
Datasheet
24,890In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 Adjustable 500 mA 1 Output Positive 200 uA 2.5 V 16 V 55 dB Adjustable - 40 C + 125 C 125 mV LDFM Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 1 A Very low drop voltage regulator
Datasheet
14,317In Stock
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 1 A Very low drop voltage regulator
Datasheet
9,600In Stock
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 200 mA low quiescent Very low noise LDO
Datasheet
10,739In 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
22,755In Stock
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 300mA low Q LDO 1.9 to 5.5V 100mV
Datasheet
14,344In 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
17,435In Stock
12,000Expected 9/4/2026
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 200 mA low quiescent current and low noise LDO
Datasheet
24,025In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 3.6 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
22,890In Stock
15,000Expected 3/19/2027
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
26,914In 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 1.2 A High PSRR low dropout linear voltage regulator
Datasheet
11,035In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT SOT-223-4 1.8 V 1.2 A 1 Output Positive 250 uA 2.5 V 18 V Fixed - 40 C + 125 C 350 mV LDL1117 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 1.2 A High PSRR low dropout linear voltage regulator
Datasheet
42,230In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT SOT-223-4 5 V 1.2 A 1 Output Positive 250 uA 2.5 V 18 V Fixed - 40 C + 125 C 350 mV LDL1117 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 1.2 A low quiescent current LDO with reverse current protection
Datasheet
7,374In 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 1.2 A low quiescent current LDO with reverse current protection
Datasheet
7,844In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 Adjustable 1.2 A 1 Output Positive 240 uA 1.6 V 5.5 V 53 dB Adjustable - 40 C + 125 C 350 mV LDL112 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 1.2A Low Drop Linear Regulator IC
Datasheet
37,928In 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
51,759In 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
9,316In 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 250 mA ultra-low noise LDO
Datasheet
13,209In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 1.8 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 400 mA, 38 V low-dropout regulator, with 45uAA quiescent current
Datasheet
2,244In Stock
6,000Expected 7/16/2027
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
3,939In 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
6,513In 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 V LOW QUIESCENT BiCMOS VOLT REG
Datasheet
3,302In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 3.3 V 1.3 A 1 Output Positive 500 uA 3 V 5.5 V Fixed 0 C + 125 C 200 mV ST1L05 Reel, Cut Tape, MouseReel