LDO Voltage Regulators – Mouser Estonia

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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 € 7.115In 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	7.115In 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 € 7.260In 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	7.260In 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 5/19/2027	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 5/19/2027	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 12/7/2026 12.000 Expected 12/28/2026 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 10/26/2026 3.000 Expected 10/29/2026 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 € 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 1/15/2027 6.000 Expected 5/10/2027 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 € 73.973In 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	73.973In Stock 319.500On Order On Order Ship Dates Mfr. No: LD39200DPUR Stock: 73.973 Can Dispatch Immediately On Order: 157.500 Expected 3/15/2027 162.000 Expected 6/4/2027 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 € 10.871In 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
LDO Voltage Regulators 150mA Capless Ultra Low REG 50mV 100mA LDCL015MR STMicroelectronics 1: 0,98 € 7.389In 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	7.389In 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