LDO Voltage Regulators – Mouser Ireland

.hide-partial { max-height: none; } .show-more { display: none; }

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.

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 250

Applied Filters:

Mounting Style

Package/Case

Output Voltage

Output Current

Polarity

Quiescent Current

Input Voltage, Min

Input Voltage, Max

PSRR / Ripple Rejection - Typ

Output Type

Maximum Operating Temperature

Dropout Voltage

Qualification

Series

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) 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 3.3V 0.25A Positive L4931CD33-TR STMicroelectronics 1: €1.19 4,337In Stock	Mfr. Part No. L4931CD33-TR Mouser Part No 511-L4931CD33-TR	STMicroelectronics	LDO Voltage Regulators 3.3V 0.25A Positive Learn More about STMicroelectronics stm standard products	Datasheet	4,337In Stock	Cut Tape €1.19 €0.869 €0.78 €0.691 Reel €0.58 View €0.648 €0.623 €0.613 €0.554 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-8	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 5.0V 0.25A Positive L4931CD50-TR STMicroelectronics 1: €1.16 7,114In Stock	Mfr. Part No. L4931CD50-TR Mouser Part No 511-L4931CD50-TR	STMicroelectronics	LDO Voltage Regulators 5.0V 0.25A Positive Learn More about STMicroelectronics stm standard products	Datasheet	7,114In Stock	Cut Tape €1.16 €0.845 €0.765 €0.678 Reel €0.58 View €0.636 €0.611 €0.593 €0.566 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-8	5 V	250 mA	1 Output	Positive	600 uA		Fixed	- 40 C	+ 125 C	400 mV		L4931	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 1.5A Regulator Lo Drop L4940D2T12-TR STMicroelectronics 1: €1.93 2,787In Stock	Mfr. Part No. L4940D2T12-TR Mouser Part No 511-L4940D2T12-TR	STMicroelectronics	LDO Voltage Regulators 1.5A Regulator Lo Drop Learn More about STMicroelectronics stm standard products	Datasheet	2,787In Stock	Cut Tape €1.93 €1.43 €1.30 €1.16 Reel €0.946 View €1.10 €1.07 €0.92 €0.901 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	D2PAK-3 (TO-263-3)	12 V	1.5 A	1 Output	Positive	30 mA		Fixed	- 40 C	+ 150 C	200 mV		L4940	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 5.0V 1.5A Positive L4940D2T5-TR STMicroelectronics 1: €1.93 3,873In Stock	Mfr. Part No. L4940D2T5-TR Mouser Part No 511-L4940D2T5-TR	STMicroelectronics	LDO Voltage Regulators 5.0V 1.5A Positive Learn More about STMicroelectronics stm standard products	Datasheet	3,873In Stock	Cut Tape €1.93 €1.43 €1.30 €1.16 Reel €1.01 View €1.10 €1.07 €0.98 €0.912 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		Fixed	- 40 C	+ 150 C	200 mV		L4940	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 5.0V 1.5A Positive L4940V5 STMicroelectronics 1: €1.90 2,377In Stock	Mfr. Part No. L4940V5 Mouser Part No 511-L4940V5	STMicroelectronics	LDO Voltage Regulators 5.0V 1.5A Positive Learn More about STMicroelectronics stm standard products	Datasheet	2,377In Stock	€1.90 €1.44 €1.16 €1.09 View €1.06 €1.01 €0.998	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 5.0V 1.0A Positive L4941BDT-TR STMicroelectronics 1: €1.41 3,898In Stock	Mfr. Part No. L4941BDT-TR Mouser Part No 511-L4941BDT-TR	STMicroelectronics	LDO Voltage Regulators 5.0V 1.0A Positive Learn More about STMicroelectronics stm standard products	Datasheet	3,898In Stock	Cut Tape €1.41 €1.08 €0.955 €0.847 View Reel €0.662 €0.797 €0.767 €0.764 €0.662 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 5.0V 50mA Positive LD2980ABM50TR STMicroelectronics 1: €0.611 14,228In Stock	Mfr. Part No. LD2980ABM50TR Mouser Part No 511-LD2980ABM50	STMicroelectronics	LDO Voltage Regulators 5.0V 50mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	14,228In Stock	Cut Tape €0.611 €0.425 €0.381 €0.333 Reel €0.262 View €0.31 €0.296 €0.285 €0.258 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	5 V	50 mA	1 Output	Positive	100 uA		Fixed	- 40 C	+ 125 C	7 mV		LD2980	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 3.3V 50mA Positive LD2980CM33TR STMicroelectronics 1: €0.507 19,230In Stock	Mfr. Part No. LD2980CM33TR Mouser Part No 511-LD2980CM33	STMicroelectronics	LDO Voltage Regulators 3.3V 50mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	19,230In Stock	Cut Tape €0.507 €0.368 €0.333 €0.296 View Reel €0.238 €0.275 €0.263 €0.253 €0.238 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.3 V	50 mA	1 Output	Positive	100 uA		Fixed	- 40 C	+ 125 C	7 mV		LD2980	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 3.3V 100mA Positive LD2981ABM33TR STMicroelectronics 1: €0.714 5,094In Stock	Mfr. Part No. LD2981ABM33TR Mouser Part No 511-LD2981ABM33	STMicroelectronics	LDO Voltage Regulators 3.3V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	5,094In Stock	Cut Tape €0.714 €0.506 €0.454 €0.397 Reel €0.301 View €0.37 €0.353 €0.341 €0.294 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.3 V	100 mA	1 Output	Positive	100 uA		Fixed	- 40 C	+ 125 C	1 mV		LD2981	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 3.3V 100mA Positive LD2981ABU33TR STMicroelectronics 1: €0.55 7,265In Stock	Mfr. Part No. LD2981ABU33TR Mouser Part No 511-LD2981ABU33	STMicroelectronics	LDO Voltage Regulators 3.3V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	7,265In Stock	Cut Tape €0.55 €0.396 €0.358 €0.307 Reel €0.266 View €0.303 €0.29 €0.279 €0.259 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOT-89-3	3.3 V	100 mA	1 Output	Positive	100 uA		Fixed	- 40 C	+ 125 C	1 mV		LD2981	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 5.0V 100mA Positive LD2981ABU50TR STMicroelectronics 1: €0.731 4,783In Stock 7,500Expected 19/05/2027	Mfr. Part No. LD2981ABU50TR Mouser Part No 511-LD2981ABU50	STMicroelectronics	LDO Voltage Regulators 5.0V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	4,783In Stock 7,500Expected 19/05/2027	Cut Tape €0.731 €0.512 €0.459 €0.401 Reel €0.327 View €0.373 €0.356 €0.342 €0.318 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOT-89-3	5 V	100 mA	1 Output	Positive	100 uA		Fixed	- 40 C	+ 125 C	1 mV		LD2981	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 3.3V 100mA Positive LD2981CM33TR STMicroelectronics 1: €0.593 10,859In Stock 24,000On Order	Mfr. Part No. LD2981CM33TR Mouser Part No 511-LD2981CM33	STMicroelectronics	LDO Voltage Regulators 3.3V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	10,859In Stock 24,000On Order On Order Ship Dates Mfr. No: LD2981CM33TR Stock: 10,859 Can Dispatch Immediately On Order: 12,000 Expected 07/12/2026 12,000 Expected 28/12/2026 Factory Lead Time: 30 Weeks	Cut Tape €0.593 €0.436 €0.372 €0.326 View Reel €0.262 €0.303 €0.286 €0.276 €0.262 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.3 V	100 mA	1 Output	Positive	100 uA		Fixed	- 40 C	+ 125 C	1 mV		LD2981	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 3.3V 100mA Positive LD2981CU33TR STMicroelectronics 1: €0.645 4,742In Stock	Mfr. Part No. LD2981CU33TR Mouser Part No 511-LD2981CU33	STMicroelectronics	LDO Voltage Regulators 3.3V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	4,742In Stock	Cut Tape €0.645 €0.456 €0.405 €0.353 Reel €0.289 View €0.329 €0.315 €0.303 €0.281 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOT-89-3	3.3 V	100 mA	1 Output	Positive	100 uA		Fixed	- 40 C	+ 125 C	1 mV		LD2981	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 5.0V 100mA Positive LD2981CU50TR STMicroelectronics 1: €0.602 5,483In Stock	Mfr. Part No. LD2981CU50TR Mouser Part No 511-LD2981CU50	STMicroelectronics	LDO Voltage Regulators 5.0V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	5,483In Stock	Cut Tape €0.602 €0.452 €0.387 €0.341 Reel €0.278 View €0.32 €0.307 €0.297 €0.266 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOT-89-3	5 V	100 mA	1 Output	Positive	100 uA		Fixed	- 40 C	+ 125 C	1 mV		LD2981	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 150mA Lo Quiescent Lo Noise Vltg Reg LD39015M10R STMicroelectronics 1: €0.688 17,889In Stock	Mfr. Part No. LD39015M10R Mouser Part No 511-LD39015M10R	STMicroelectronics	LDO Voltage Regulators 150mA Lo Quiescent Lo Noise Vltg Reg Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	17,889In Stock	Cut Tape €0.688 €0.496 €0.445 €0.389 €0.364 Reel €0.363 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1 V	150 mA	1 Output	Positive	50 uA		Fixed	- 40 C	+ 125 C	80 mV		LD39015	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 150mA Lo Quiescent Lo Noise Vltg Reg LD39015M12R STMicroelectronics 1: €0.671 10,599In Stock	Mfr. Part No. LD39015M12R Mouser Part No 511-LD39015M12R	STMicroelectronics	LDO Voltage Regulators 150mA Lo Quiescent Lo Noise Vltg Reg Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	10,599In Stock	Cut Tape €0.671 €0.482 €0.439 €0.39 Reel €0.32 View €0.367 €0.353 €0.343 €0.314 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	1.2 V	150 mA	1 Output	Positive	50 uA		Fixed	- 40 C	+ 125 C	80 mV		LD39015	Reel, Cut Tape, MouseReel
LDO Voltage Regulators ADJ FRM 0.8V LDO 500mA LD39050PUR STMicroelectronics 1: €0.963 13,016In Stock 24,000On Order	Mfr. Part No. LD39050PUR Mouser Part No 511-LD39050PUR	STMicroelectronics	LDO Voltage Regulators ADJ FRM 0.8V LDO 500mA Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	13,016In Stock 24,000On Order On Order Ship Dates Mfr. No: LD39050PUR Stock: 13,016 Can Dispatch Immediately On Order: 21,000 Expected 26/10/2026 3,000 Expected 29/10/2026 Factory Lead Time: 30 Weeks	Cut Tape €0.963 €0.697 €0.63 €0.556 View Reel €0.459 €0.52 €0.499 €0.487 €0.459 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	800 mV	500 mA	1 Output	Positive	50 uA		Adjustable	- 40 C	+ 125 C	200 mV		LD39050	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 1 A low quiescent current low noise voltage regulator LD39100PU12RY STMicroelectronics 1: €1.12 19,529In Stock	Mfr. Part No. LD39100PU12RY Mouser Part No 511-LD39100PU12RY	STMicroelectronics	LDO Voltage Regulators 1 A low quiescent current low noise voltage regulator Learn More about STMicroelectronics stm ld39100 regulators	Datasheet	19,529In Stock	Cut Tape €1.12 €0.808 €0.732 €0.648 Reel €0.55 View €0.608 €0.583 €0.566 €0.538 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	1.2 V	1 A	1 Output	Positive	200 uA		Fixed	- 40 C	+ 125 C	200 mV	AEC-Q100	LD39100	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 1 A low quiescent current low noise voltage regulator LD39100PU25RY STMicroelectronics 1: €1.10 4,207In Stock	Mfr. Part No. LD39100PU25RY Mouser Part No 511-LD39100PU25RY	STMicroelectronics	LDO Voltage Regulators 1 A low quiescent current low noise voltage regulator Learn More about STMicroelectronics stm ld39100 regulators	Datasheet	4,207In Stock	Cut Tape €1.10 €0.808 €0.716 €0.634 View Reel €0.509 €0.594 €0.57 €0.55 €0.509 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	2.5 V	1 A	1 Output	Positive	200 uA	65 dB	Fixed	- 40 C	+ 125 C	200 mV	AEC-Q100	LD39100	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 1 A low quiescent current low noise voltage regulator LD39100PU33RY STMicroelectronics 1: €1.07 3,085In Stock 9,000On Order	Mfr. Part No. LD39100PU33RY Mouser Part No 511-LD39100PU33RY	STMicroelectronics	LDO Voltage Regulators 1 A low quiescent current low noise voltage regulator Learn More about STMicroelectronics stm ld39100 regulators	Datasheet	3,085In Stock 9,000On Order On Order Ship Dates Mfr. No: LD39100PU33RY Stock: 3,085 Can Dispatch Immediately On Order: 3,000 Expected 15/01/2027 6,000 Expected 30/04/2027 Factory Lead Time: 30 Weeks	Cut Tape €1.07 €0.796 €0.728 €0.651 Reel €0.561 View €0.61 €0.586 €0.572 €0.549 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	3.3 V	1 A	1 Output	Positive	200 uA		Fixed	- 40 C	+ 125 C	200 mV	AEC-Q100	LD39100	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 300mA current Linear Reg IC LD39130SJ33R STMicroelectronics 1: €0.74 5,368In Stock	Mfr. Part No. LD39130SJ33R Mouser Part No 511-LD39130SJ33R	STMicroelectronics	LDO Voltage Regulators 300mA current Linear Reg IC Learn More about STMicroelectronics stm ld39130s voltage regulator	Datasheet	5,368In Stock	Cut Tape €0.74 €0.524 €0.471 €0.413 View Reel €0.295 €0.385 €0.368 €0.355 €0.348 €0.295 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 2 A high PSRR ultra low drop linear regulator with reverse current protection LD39200DPUR STMicroelectronics 1: €0.972 21,325In Stock 319,500On Order	Mfr. Part No. LD39200DPUR Mouser Part No 511-LD39200DPUR	STMicroelectronics	LDO Voltage Regulators 2 A high PSRR ultra low drop linear regulator with reverse current protection Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	21,325In Stock 319,500On Order On Order Ship Dates Mfr. No: LD39200DPUR Stock: 21,325 Can Dispatch Immediately On Order: 157,500 Expected 11/12/2026 162,000 Expected 04/06/2027 Factory Lead Time: 30 Weeks	Cut Tape €0.972 €0.699 €0.63 €0.554 View Reel €0.447 €0.517 €0.495 €0.48 €0.447 €0.447 MouseReel Available	Min.: 1 Mult.: 1 : 4,500	SMD/SMT	DFN-8	Adjustable	2 A	1 Output	Positive	1 mA	40 dB	Adjustable	- 40 C	+ 125 C	130 mV		LD39200	Reel, Cut Tape, MouseReel
LDO Voltage Regulators BICMOS VOLT REG LD3985M33R STMicroelectronics 1: €0.636 30,855In Stock	Mfr. Part No. LD3985M33R Mouser Part No 511-LD3985M33R	STMicroelectronics	LDO Voltage Regulators BICMOS VOLT REG Learn More about STMicroelectronics stm standard products	Datasheet	30,855In Stock	Cut Tape €0.636 €0.448 €0.402 €0.352 Reel €0.283 View €0.328 €0.314 €0.302 €0.276 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	3.3 V	150 mA	1 Output	Positive	150 uA		Fixed	- 40 C	+ 125 C	400 uV		LD3985	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 1A Ultra Low-Dropout regulator with Reverse Current Protection LD59100PUR STMicroelectronics 1: €0.765 10,771In Stock 6,000On Order	Mfr. Part No. LD59100PUR Mouser Part No 511-LD59100PUR	STMicroelectronics	LDO Voltage Regulators 1A Ultra Low-Dropout regulator with Reverse Current Protection Learn More about STMicroelectronics stm ld59100 regulator	Datasheet	10,771In Stock 6,000On Order	Cut Tape €0.765 €0.548 €0.494 €0.443 Reel €0.361 View €0.412 €0.394 €0.378 €0.342 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-8	Adjustable	1 A	1 Output	Positive	280 uA	70 dB	Adjustable	- 40 C	+ 125 C	200 mV		LD59100	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 150mA Capless Ultra Low REG 50mV 100mA LDCL015MR STMicroelectronics 1: €0.98 7,609In Stock	Mfr. Part No. LDCL015MR Mouser Part No 511-LDCL015MR	STMicroelectronics	LDO Voltage Regulators 150mA Capless Ultra Low REG 50mV 100mA Learn More about STMicroelectronics stm LDCL015	Datasheet	7,609In Stock	Cut Tape €0.98 €0.703 €0.635 €0.56 Reel €0.458 View €0.525 €0.503 €0.49 €0.448 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	SOT-23-5	Adjustable	150 mA	1 Output	Positive	120 uA		Adjustable	- 40 C	+ 125 C	50 mV		LDCL015	Reel, Cut Tape, MouseReel