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 (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 200 mA low quiescent Very low noise LDO
Datasheet
490In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT SOT-23-5 1.2 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 200 mA low quiescent current very low noise LDO
Datasheet
1,695In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT SOT-23-5 2.9 V 200 mA 1 Output Positive 50 uA 1.9 V 5.5 V 55 dB Fixed - 40 C + 125 C 100 mV LDK120 Reel, Cut Tape, MouseReel

STMicroelectronics LDO Voltage Regulators 200mA Low Quiescent Crnt low noise LDO
Datasheet
83In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT SOT-23-5 3.1 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 200mA Low Quiescent Crnt low noise LDO
Datasheet
785In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN-6 Adjustable 200 mA 1 Output Positive 100 uA 1.9 V 5.5 V Adjustable - 40 C + 125 C 100 mV LDK120 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current very low noise LDO
Datasheet
3,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN-6 800 mV 200 mA 1 Output Positive 50 uA 1.9 V 5.5 V 55 dB Fixed - 40 C + 125 C 100 mV LDK120 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current very low noise LDO
Datasheet
2,850In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN-6 1.2 V 200 mA 1 Output Positive 50 uA 1.9 V 5.5 V 55 dB Fixed - 40 C + 125 C 100 mV LDK120 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current very low noise LDO
Datasheet
2,961In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN-6 2.9 V 200 mA 1 Output Positive 50 uA 1.9 V 5.5 V 55 dB Fixed - 40 C + 125 C 100 mV LDK120 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current very low noise LDO
Datasheet
2,920In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN-6 3.2 V 200 mA 1 Output Positive 50 uA 1.9 V 5.5 V 55 dB Fixed - 40 C + 125 C 100 mV LDK120 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300mA current very low noise LDO
Datasheet
2,928In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT SOT-323-5 800 mV 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V 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
2,836In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT SOT-323-5 1 V 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V 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
2,279In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT SOT-323-5 1.5 V 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V 55 dB Fixed - 40 C + 125 C 100 mV LDK130 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300mA Low Quiescent Crnt low noise LDO
Datasheet
2,862In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT SOT-323-5 3.2 V 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V Fixed - 40 C + 125 C 100 mV LDK130 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300 mA low quiescent current very low noise LDO (automotive for SOT23-5L package
Datasheet
2,177In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT SOT-23-5 1.5 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 300mA current very low noise LDO
Datasheet
2,988In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN-6 800 mV 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V 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
2,975In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN-6 1 V 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V 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
3,349In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN-6 1.8 V 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V 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
2,144In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN-6 3 V 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V 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
2,997In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN-6 3.2 V 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V 55 dB Fixed - 40 C + 125 C 100 mV LDK130 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and low noise LDO
Datasheet
2,545In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT SOT-323-5 4 V 200 mA 1 Output Positive 60 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
677In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT SOT-23-5 3.2 V 200 mA 1 Output Positive 60 uA 2.5 V 13.2 V 50 dB Fixed - 40 C + 125 C 200 mV LDK220 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and low noise LDO
Datasheet
2,970In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN-6 4 V 200 mA 1 Output 2.5 V 14 V Adjustable - 40 C + 125 C LDK220 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator
Datasheet
1,713In Stock
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT SOT-23-5 1.5 V 200 mA 1 Output Positive 70 uA 2.5 V 18 V 88 dB Fixed - 40 C + 125 C 200 mV LDK320 Reel, Cut Tape

STMicroelectronics LDO Voltage Regulators 1.2 A low quiescent current LDO with reverse current protection
Datasheet
2,390In Stock
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT DFN-6 3 V 1.2 A 1 Output Positive 250 uA 1.6 V 5.5 V 57 dB Fixed - 40 C + 125 C 350 mV LDL112 Reel, Cut Tape

STMicroelectronics LDO Voltage Regulators 300mA low Q LDO 1.9 to 5.5V 100mV
Datasheet
562Expected 6/5/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 1.2 A low quiescent current LDO with reverse current protection
Datasheet
6,000Expected 5/3/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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