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 300mA low Q LDO 1.9 to 5.5V 100mV
Datasheet
2,660In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-323-5 1.2 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 300mA current very low noise LDO
Datasheet
2,279In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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 300 mA low quiescent current very low noise LDO (automotive for SOT23-5L package
Datasheet
2,312In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-323-5 2.9 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
: 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
1,877In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
: 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
: 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
3,338In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
: 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
: 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
1,389In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-323-5 2.7 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
2,528In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
476In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 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
: 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
1,503In Stock
Min.: 1
Mult.: 1
: 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
3,104In Stock
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 1.2 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 1.2 A low quiescent current LDO with reverse current protection
Datasheet
1,955In Stock
Min.: 1
Mult.: 1
: 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 1.2 A low quiescent current LDO with reverse current protection
Datasheet
2,748In Stock
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 1.5 V 1.2 A 1 Output Positive 250 uA 1.6 V 5.5 V 57 dB Fixed - 40 C + 125 C 300 mV LDL112 Reel, Cut Tape
STMicroelectronics LDO Voltage Regulators 300mA Low Quiescent Crnt low noise LDO
Datasheet
5,997Expected 15/9/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-323-5 Adjustable 300 mA 1 Output Positive 30 uA 1.9 V 5.5 V Adjustable - 40 C + 125 C 100 mV LDK130 Reel, Cut Tape, MouseReel
STMicroelectronics LDO Voltage Regulators 300mA current very low noise LDO
Datasheet
5,990Expected 5/7/2027
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT DFN-6 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 LDK130 Reel, Cut Tape, MouseReel
STMicroelectronics LDK120C29R
STMicroelectronics LDO Voltage Regulators 200 mA low quiescent current very low noise LDO
Datasheet
2,825In Stock
Min.: 1
Mult.: 1
: 3,000

SMD/SMT 2.9 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
STMicroelectronics LDO Voltage Regulators 300mA current Linear Reg IC
Datasheet
Non-Stocked Lead-Time 30 Weeks
Min.: 5,000
Mult.: 5,000
: 5,000

SMD/SMT FlipChip-4 4.1 V 300 mA 1 Output 1.4 V 5.5 V 70 dB Fixed - 40 C + 125 C 300 mV LD39130S Reel
STMicroelectronics LDO Voltage Regulators 300 mA very low quiescent current Linear regulator IC with automatic Green mode
Datasheet
Non-Stocked Lead-Time 30 Weeks
Min.: 5,000
Mult.: 5,000
: 5,000

SMD/SMT DFN-6 Adjustable 300 mA 1 Output Positive 45 uA 1.4 V 5.5 V 70 dB Adjustable - 40 C + 125 C 300 mV LD39130S Reel
STMicroelectronics LDO Voltage Regulators 300 mA very low quiescent current Linear regulator IC with automatic Green mode
Datasheet
Non-Stocked Lead-Time 44 Weeks
Min.: 5,000
Mult.: 5,000
: 5,000

SMD/SMT DFN-6 3.1 V 300 mA 1 Output Positive 1.4 V 5.5 V 70 dB Fixed - 40 C + 125 C LD39130S Reel

STMicroelectronics LDO Voltage Regulators LOW NOISE REGULATOR
Datasheet
Lead-Time 30 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT SOT-23-5 2.7 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