LDO Voltage Regulators – Mouser Finland

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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 (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 5.0V 0.25A Positive L4931CZ50-AP STMicroelectronics 1: 0,791 € 4 513In Stock	Mfr. Part No. L4931CZ50-AP Mouser Part No 511-L4931CZ50-AP	STMicroelectronics	LDO Voltage Regulators 5.0V 0.25A Positive Learn More about STMicroelectronics stm standard products	Datasheet	4 513In Stock	0,791 € 0,581 € 0,521 € 0,455 € View Reel 0,326 € 0,423 € 0,404 € 0,389 € 0,326 €	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 1.5A Regulator Lo Drop L4940D2T12-TR STMicroelectronics 1: 1,93 € 2 785In 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 785In 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 € 2 623In 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	2 623In 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 372In 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 372In 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 254In 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 254In 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 € 7 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	7 859In Stock 24 000On Order On Order Ship Dates Mfr. No: LD2981CM33TR Stock: 7 859 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 € 4 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	4 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 672In 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 672In 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 IC Regulator LN 150MA, 1.8V LD39015M18R STMicroelectronics 1: 0,611 € 12 766In Stock	Mfr. Part No. LD39015M18R Mouser Part No 511-LD39015M18R	STMicroelectronics	LDO Voltage Regulators IC Regulator LN 150MA, 1.8V Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	12 766In Stock	Cut Tape 0,611 € 0,474 € 0,427 € 0,373 € Reel 0,279 € View 0,348 € 0,333 € 0,321 € 0,273 € 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 1 A low quiescent current low noise voltage regulator LD39100PU12RY STMicroelectronics 1: 1,12 € 19 992In 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 992In 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 € 3 157In 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	3 157In 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 € 2 421In 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	2 421In Stock 9 000On Order On Order Ship Dates Mfr. No: LD39100PU33RY Stock: 2 421 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 1.8V 0.15A Ultra Low LD3985M18R STMicroelectronics 1: 0,688 € 4 468In Stock	Mfr. Part No. LD3985M18R Mouser Part No 511-LD3985M18R	STMicroelectronics	LDO Voltage Regulators 1.8V 0.15A Ultra Low Learn More about STMicroelectronics stm standard products	Datasheet	4 468In Stock	Cut Tape 0,688 € 0,483 € 0,433 € 0,378 € Reel 0,309 € View 0,353 € 0,336 € 0,323 € 0,301 € MouseReel Available	Min.: 1 Mult.: 1 : 3 000	SMD/SMT	SOT-23-5	1.8 V	150 mA	1 Output	Positive	150 uA		Fixed	- 40 C	+ 125 C	400 uV		LD3985	Reel, Cut Tape, MouseReel
LDO Voltage Regulators BICMOS VOLT REG LD3985M33R STMicroelectronics 1: 0,636 € 30 805In 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 805In 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 871In 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 871In 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