LDO Voltage Regulators

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package / Case	Output Voltage	Output Current	Number of Outputs	Polarity	Quiescent Current	PSRR / Ripple Rejection - Typ	Output Type	Minimum Operating Temperature	Maximum Operating Temperature	Dropout Voltage	Qualification	Series	Packaging
LDO Voltage Regulators 1A Low Quiescent Reg 1.5 to 5.5 V 200mV LD39100PUR STMicroelectronics 1: S/3.93 69,255In Stock	Mfr. Part # LD39100PUR Mouser Part # 511-LD39100PUR	STMicroelectronics	LDO Voltage Regulators 1A Low Quiescent Reg 1.5 to 5.5 V 200mV Learn More about STMicroelectronics stm ld39100 regulators	Datasheet	69,255In Stock	Cut Tape S/3.93 S/3.07 S/2.61 S/2.35 Reel S/1.88 View S/2.22 S/2.13 S/2.06 S/1.86 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	800 mV to 4.5 V	1 A	1 Output	Positive	200 uA		Adjustable	- 40 C	+ 125 C	200 mV		LD39100	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator LDK320AM50R STMicroelectronics 1: S/1.87 177,213In Stock	Mfr. Part # LDK320AM50R Mouser Part # 511-LDK320AM50R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator Learn More about STMicroelectronics stm ldk320 regulators	Datasheet	177,213In Stock	Cut Tape S/1.87 S/1.23 S/1.10 S/0.95 View Reel S/0.821 S/0.887 S/0.845 S/0.825 S/0.821 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	5 V	200 mA	1 Output	Positive	70 uA	48 dB	Fixed	- 40 C	+ 125 C	200 mV		LDK320	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300mA current Linear Reg IC LD39130SJ18R STMicroelectronics 1: S/2.72 17,272In Stock	Mfr. Part # LD39130SJ18R Mouser Part # 511-LD39130SJ18R	STMicroelectronics	LDO Voltage Regulators 300mA current Linear Reg IC Learn More about STMicroelectronics stm ld39130s voltage regulator	Datasheet	17,272In Stock	Cut Tape S/2.72 S/2.07 S/1.92 S/1.67 View Reel S/1.28 S/1.56 S/1.49 S/1.43 S/1.37 S/1.28 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	SMD/SMT	FlipChip-4	1.8 V	300 mA	1 Output	Positive	45 uA	70 dB	Fixed	- 40 C	+ 125 C	300 mV		LD39130S	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300mA current very low noise LDO LDK130M08R STMicroelectronics 1: S/1.17 14,426In Stock	Mfr. Part # LDK130M08R Mouser Part # 511-LDK130M08R	STMicroelectronics	LDO Voltage Regulators 300mA current very low noise LDO Learn More about STMicroelectronics stm ldk130m regulator	Datasheet	14,426In Stock	Cut Tape S/1.17 S/0.852 S/0.775 S/0.693 View Reel S/0.584 S/0.65 S/0.627 S/0.607 S/0.584 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	800 mV	300 mA	1 Output	Positive	30 uA	55 dB	Fixed	- 40 C	+ 125 C	100 mV	AEC-Q100	LDK130	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 5.0V 1.0A Positive L4941BDT-TR STMicroelectronics 1: S/6.58 4,011In Stock	Mfr. Part # L4941BDT-TR Mouser Part # 511-L4941BDT-TR	STMicroelectronics	LDO Voltage Regulators 5.0V 1.0A Positive Learn More about STMicroelectronics stm standard products	Datasheet	4,011In Stock	Cut Tape S/6.58 S/4.87 S/4.44 S/3.93 View Reel S/3.07 S/3.69 S/3.55 S/3.53 S/3.07 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252-3	5 V	1 A	1 Output	Positive	20 mA		Fixed	- 40 C	+ 150 C	250 mV		L4941	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 2.5V 500mA ULTRA LDO LD39050PU25R STMicroelectronics 1: S/3.39 4,995In Stock	Mfr. Part # LD39050PU25R Mouser Part # 511-LD39050PU25R	STMicroelectronics	LDO Voltage Regulators 2.5V 500mA ULTRA LDO Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	4,995In Stock	Cut Tape S/3.39 S/2.60 S/2.41 S/2.19 View Reel S/1.82 S/2.08 S/2.01 S/1.96 S/1.82 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	2.5 V	500 mA	1 Output	Positive	50 uA		Fixed	- 40 C	+ 125 C	200 mV		LD39050	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and low noise LDO LDK220PU33R STMicroelectronics 1: S/1.52 11,509In Stock	Mfr. Part # LDK220PU33R Mouser Part # 511-LDK220PU33R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and low noise LDO Learn More about STMicroelectronics stm ldk220 regulator	Datasheet	11,509In Stock	Cut Tape S/1.52 S/1.04 S/0.93 S/0.802 Reel S/0.607 View S/0.743 S/0.708 S/0.677 S/0.588 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	3.3 V	200 mA	1 Output	Positive	55 uA		Fixed	- 40 C	+ 125 C	100 mV		LDK220	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator LDK320AM120R STMicroelectronics 1: S/1.67 29,510In Stock	Mfr. Part # LDK320AM120R Mouser Part # 511-LDK320AM120R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and high PSRR voltage regulator Learn More about STMicroelectronics stm ldk320 regulators	Datasheet	29,510In Stock	Cut Tape S/1.67 S/1.23 S/1.10 S/0.95 View Reel S/0.817 S/0.876 S/0.833 S/0.821 S/0.817 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	12 V	200 mA	1 Output	Positive	70 uA	48 dB	Fixed	- 40 C	+ 125 C	200 mV		LDK320	Reel, Cut Tape, MouseReel
LDO Voltage Regulators IC Regulator LN 150MA, 2.5V LD39015M25R STMicroelectronics 1: S/3.11 12,274In Stock	Mfr. Part # LD39015M25R Mouser Part # 511-LD39015M25R	STMicroelectronics	LDO Voltage Regulators IC Regulator LN 150MA, 2.5V Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	12,274In Stock	Cut Tape S/3.11 S/2.18 S/1.96 S/1.71 View Reel S/1.36 S/1.59 S/1.52 S/1.46 S/1.36 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	2.5 V	150 mA	1 Output	Positive	50 uA		Fixed	- 40 C	+ 125 C	80 mV		LD39015	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 3.3V 0.25A Positive L4931ABDT33-TR STMicroelectronics 1: S/4.44 3,650In Stock	Mfr. Part # L4931ABDT33-TR Mouser Part # 511-L4931ABDT33-TR	STMicroelectronics	LDO Voltage Regulators 3.3V 0.25A Positive Learn More about STMicroelectronics stm standard products	Datasheet	3,650In Stock	Cut Tape S/4.44 S/3.46 S/3.03 S/2.76 View Reel S/2.44 S/2.63 S/2.56 S/2.50 S/2.44 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252-3	3.3 V	250 mA	1 Output	Positive	600 uA		Fixed	- 40 C	+ 125 C	400 mV		L4931	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 150mA Voltage Reg. Lo-quiescnt Lo-noise LD39015M33R STMicroelectronics 1: S/3.11 13,520In Stock	Mfr. Part # LD39015M33R Mouser Part # 511-LD39015M33R	STMicroelectronics	LDO Voltage Regulators 150mA Voltage Reg. Lo-quiescnt Lo-noise Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	13,520In Stock	Cut Tape S/3.11 S/2.18 S/1.96 S/1.71 View Reel S/1.46 S/1.59 S/1.52 S/1.46 S/1.46 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.3 V	150 mA	1 Output	Positive	50 uA		Fixed	- 40 C	+ 125 C	80 mV		LD39015	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 1 A low quiescent current low noise voltage regulator LD39100PURY STMicroelectronics 1: S/4.87 21,427In Stock	Mfr. Part # LD39100PURY Mouser Part # 511-LD39100PURY	STMicroelectronics	LDO Voltage Regulators 1 A low quiescent current low noise voltage regulator Learn More about STMicroelectronics stm ld39100 regulators	Datasheet	21,427In Stock	Cut Tape S/4.87 S/3.53 S/3.20 S/2.84 View Reel S/2.39 S/2.61 S/2.54 S/2.48 S/2.39 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	Adjustable	1 A	1 Output	Positive	200 uA		Adjustable	- 40 C	+ 125 C	200 mV	AEC-Q100	LD39100	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current very low noise LDO LDK120DM33R STMicroelectronics 1: S/1.48 10,211In Stock	Mfr. Part # LDK120DM33R Mouser Part # 511-LDK120DM33R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current very low noise LDO Learn More about STMicroelectronics stm standard products	Datasheet	10,211In Stock	Cut Tape S/1.48 S/1.03 S/0.915 S/0.79 View Reel S/0.615 S/0.732 S/0.693 S/0.666 S/0.615 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.3 V	200 mA	1 Output	Positive	50 uA	55 dB	Fixed	- 40 C	+ 125 C	150 mV		LDK120	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 1.2 A low quiescent current LDO with reverse current protection LDL112PV18R STMicroelectronics 1: S/1.83 6,726In Stock	Mfr. Part # LDL112PV18R Mouser Part # 511-LDL112PV18R	STMicroelectronics	LDO Voltage Regulators 1.2 A low quiescent current LDO with reverse current protection Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	6,726In Stock	Cut Tape S/1.83 S/1.41 S/1.31 S/1.16 Reel S/1.15 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	1.8 V	1.2 A	1 Output	Positive	35 uA		Fixed	- 40 C	+ 125 C	300 mV		LDL112	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 5.0V 0.25A Positive L4931ABD50-TR STMicroelectronics 1: S/5.25 3,407In Stock	Mfr. Part # L4931ABD50-TR Mouser Part # 511-L4931ABD50-TR	STMicroelectronics	LDO Voltage Regulators 5.0V 0.25A Positive Learn More about STMicroelectronics stm standard products	Datasheet	3,407In Stock	Cut Tape S/5.25 S/3.82 S/3.46 S/3.07 View Reel S/2.37 S/2.88 S/2.76 S/2.65 S/2.37 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-8	5 V	250 mA	1 Output	Positive	1 mA		Fixed	- 40 C	+ 125 C	400 mV		L4931	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 5.0V 0.25A Positive L4931CZ50-AP STMicroelectronics 1: S/3.62 4,921In Stock	Mfr. Part # L4931CZ50-AP Mouser Part # 511-L4931CZ50-AP	STMicroelectronics	LDO Voltage Regulators 5.0V 0.25A Positive Learn More about STMicroelectronics stm standard products	Datasheet	4,921In Stock	S/3.62 S/2.63 S/2.36 S/2.06 Reel S/1.52 View S/1.92 S/1.83 S/1.76 S/1.51	Min.: 1 Mult.: 1 : 2,000	Through Hole	TO-92-3	5 V	250 mA	1 Output	Positive	600 uA		Fixed	- 40 C	+ 125 C	400 mV		L4931	Ammo Pack
LDO Voltage Regulators Ultralow drop BICMOS Volt REG 2.5V to 6V LD39150PU-R STMicroelectronics 1: S/4.48 3,449In Stock	Mfr. Part # LD39150PU-R Mouser Part # 511-LD39150PU-R	STMicroelectronics	LDO Voltage Regulators Ultralow drop BICMOS Volt REG 2.5V to 6V Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	3,449In Stock	Cut Tape S/4.48 S/3.45 S/3.21 S/2.93 View Reel S/2.55 S/2.80 S/2.72 S/2.67 S/2.55 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		Adjustable	- 40 C	+ 125 C	200 mV		LD39150	Reel, Cut Tape, MouseReel
LDO Voltage Regulators BICMOS 300mA V Reg Ultra Lo Drop Lo LDS3985M18R STMicroelectronics 1: S/2.61 4,590In Stock	Mfr. Part # LDS3985M18R Mouser Part # 511-LDS3985M18R	STMicroelectronics	LDO Voltage Regulators BICMOS 300mA V Reg Ultra Lo Drop Lo Learn More about STMicroelectronics stm standard products	Datasheet	4,590In Stock	Cut Tape S/2.61 S/1.96 S/1.80 S/1.63 Reel S/1.48 View S/1.55 S/1.50 S/1.49 S/1.41 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	TSOT-23-5	1.8 V	300 mA	1 Output	Positive	150 uA		Fixed	- 40 C	+ 125 C	400 uV		LDS3985	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300mA current Linear Reg IC LD39130SJ12R STMicroelectronics 1: S/2.96 6,891In Stock	Mfr. Part # LD39130SJ12R Mouser Part # 511-LD39130SJ12R	STMicroelectronics	LDO Voltage Regulators 300mA current Linear Reg IC Learn More about STMicroelectronics stm ld39130s voltage regulator	Datasheet	6,891In Stock	Cut Tape S/2.96 S/2.12 S/1.90 S/1.67 View Reel S/1.27 S/1.55 S/1.49 S/1.43 S/1.37 S/1.27 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	SMD/SMT	FlipChip-4	1.2 V	300 mA	1 Output	Positive	45 uA	70 dB	Fixed	- 40 C	+ 125 C	300 mV		LD39130S	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300mA current Linear Reg IC LD39130SJ33R STMicroelectronics 1: S/3.35 5,568In Stock	Mfr. Part # LD39130SJ33R Mouser Part # 511-LD39130SJ33R	STMicroelectronics	LDO Voltage Regulators 300mA current Linear Reg IC Learn More about STMicroelectronics stm ld39130s voltage regulator	Datasheet	5,568In Stock	Cut Tape S/3.35 S/2.37 S/2.13 S/1.87 View Reel S/1.46 S/1.74 S/1.67 S/1.61 S/1.58 S/1.46 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	SMD/SMT	FlipChip-4	3.3 V	300 mA	1 Output	Positive	45 uA	70 dB	Fixed	- 40 C	+ 125 C	300 mV		LD39130S	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 150mA Capless Ultra Low REG 50mV 100mA LDCL015M33R STMicroelectronics 1: S/6.50 3,219In Stock	Mfr. Part # LDCL015M33R Mouser Part # 511-LDCL015M33R	STMicroelectronics	LDO Voltage Regulators 150mA Capless Ultra Low REG 50mV 100mA Learn More about STMicroelectronics stm LDCL015	Datasheet	3,219In Stock	Cut Tape S/6.50 S/4.94 S/4.32 S/3.83 Reel S/3.21 View S/3.60 S/3.46 S/3.42 S/3.16 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.3 V	150 mA	1 Output	Positive	120 uA		Fixed	- 40 C	+ 125 C	50 mV		LDCL015	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 200 mA low quiescent current and low noise LDO LDK220PU50R STMicroelectronics 1: S/1.52 10,449In Stock	Mfr. Part # LDK220PU50R Mouser Part # 511-LDK220PU50R	STMicroelectronics	LDO Voltage Regulators 200 mA low quiescent current and low noise LDO Learn More about STMicroelectronics stm ldk220 regulator	Datasheet	10,449In Stock	Cut Tape S/1.52 S/1.04 S/0.93 S/0.802 Reel S/0.596 View S/0.743 S/0.708 S/0.677 S/0.568 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	5 V	200 mA	1 Output	Positive	55 uA		Fixed	- 40 C	+ 125 C	100 mV		LDK220	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 5.0V 1.5A Positive L4940V5 STMicroelectronics 1: S/8.60 2,497In Stock	Mfr. Part # L4940V5 Mouser Part # 511-L4940V5	STMicroelectronics	LDO Voltage Regulators 5.0V 1.5A Positive Learn More about STMicroelectronics stm standard products	Datasheet	2,497In Stock	S/8.60 S/6.50 S/5.49 S/5.02 View S/4.83 S/4.55 S/4.40	Min.: 1 Mult.: 1	Through Hole	TO-220-3	5 V	1.5 A	1 Output	Positive	30 mA		Fixed	- 40 C	+ 150 C	200 mV		L4940	Tube
LDO Voltage Regulators IC Regulator LN 150MA, 1.8V LD39015M18R STMicroelectronics 1: S/2.84 16,786In Stock	Mfr. Part # LD39015M18R Mouser Part # 511-LD39015M18R	STMicroelectronics	LDO Voltage Regulators IC Regulator LN 150MA, 1.8V Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	16,786In Stock	Cut Tape S/2.84 S/2.14 S/1.93 S/1.69 Reel S/1.29 View S/1.58 S/1.51 S/1.45 S/1.27 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1.8 V	150 mA	1 Output	Positive	50 uA		Fixed	- 40 C	+ 125 C	80 mV		LD39015	Reel, Cut Tape, MouseReel
LDO Voltage Regulators Bicmos Vltg Regulatr Ultra Lo Drop LD39150DT25-R STMicroelectronics 1: S/5.61 11,064In Stock	Mfr. Part # LD39150DT25-R Mouser Part # 511-LD39150DT25-R	STMicroelectronics	LDO Voltage Regulators Bicmos Vltg Regulatr Ultra Lo Drop Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	11,064In Stock	Cut Tape S/5.61 S/4.05 S/3.66 S/3.24 Reel S/2.64 View S/3.03 S/2.91 S/2.78 S/2.57 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252-3	2.5 V	1.5 A	1 Output	Positive	2.5 mA		Fixed	- 40 C	+ 125 C	40 mV		LD39150	Reel, Cut Tape, MouseReel