LDO Voltage Regulators – Mouser Japan

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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 (JPY) 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 5.0V 0.25A Positive L4931CD50-TR STMicroelectronics 1: ¥206 7,074In Stock	Mfr. Part # L4931CD50-TR Mouser Part # 511-L4931CD50-TR	STMicroelectronics	LDO Voltage Regulators 5.0V 0.25A Positive Learn More about STMicroelectronics stm standard products	Datasheet	7,074In Stock	Cut Tape ¥206 ¥152.3 ¥138.9 ¥124.2 Reel ¥105.5 View ¥117.3 ¥112.9 ¥109.8 ¥102.3 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: ¥382 2,785In Stock	Mfr. Part # L4940D2T12-TR Mouser Part # 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 ¥382 ¥282.4 ¥257.5 ¥230.9 Reel ¥191 View ¥217.6 ¥210.9 ¥189.4 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: ¥372.1 2,503In Stock 2,000Expected 7/1/2027	Mfr. Part # L4940D2T5-TR Mouser Part # 511-L4940D2T5-TR	STMicroelectronics	LDO Voltage Regulators 5.0V 1.5A Positive Learn More about STMicroelectronics stm standard products	Datasheet	2,503In Stock 2,000Expected 7/1/2027	Cut Tape ¥372.1 ¥275.7 ¥250.8 ¥224.2 Reel ¥192.7 View ¥212.6 ¥206 ¥172.7 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 1.0A Positive L4941BDT-TR STMicroelectronics 1: ¥277.4 3,797In 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	3,797In Stock	Cut Tape ¥277.4 ¥207.6 ¥186 ¥163.6 Reel ¥128.6 View ¥154 ¥148.2 ¥147.5 ¥122.7 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: ¥117.9 13,280In Stock	Mfr. Part # LD2980ABM50TR Mouser Part # 511-LD2980ABM50	STMicroelectronics	LDO Voltage Regulators 5.0V 50mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	13,280In Stock	Cut Tape ¥117.9 ¥82.1 ¥73.6 ¥64.3 Reel ¥50.7 View ¥60 ¥57.1 ¥55 ¥49.8 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: ¥108 18,630In Stock	Mfr. Part # LD2980CM33TR Mouser Part # 511-LD2980CM33	STMicroelectronics	LDO Voltage Regulators 3.3V 50mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	18,630In Stock	Cut Tape ¥108 ¥76.9 ¥68.9 ¥61 Reel ¥47.3 View ¥56.5 ¥54.1 ¥51.7 ¥46.2 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: ¥131.2 5,094In Stock	Mfr. Part # LD2981ABM33TR Mouser Part # 511-LD2981ABM33	STMicroelectronics	LDO Voltage Regulators 3.3V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	5,094In Stock	Cut Tape ¥131.2 ¥94 ¥84.5 ¥74.2 Reel ¥59.1 View ¥69.3 ¥66.1 ¥63.8 ¥57.8 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: ¥103 5,901In Stock	Mfr. Part # LD2981ABU33TR Mouser Part # 511-LD2981ABU33	STMicroelectronics	LDO Voltage Regulators 3.3V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	5,901In Stock	Cut Tape ¥103 ¥75.1 ¥67.9 ¥58 Reel ¥49.7 View ¥56 ¥53.8 ¥52 ¥48.5 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: ¥147.8 4,783In Stock 7,500Expected 5/19/2027	Mfr. Part # LD2981ABU50TR Mouser Part # 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 ¥147.8 ¥104 ¥93.5 ¥81.9 Reel ¥68.8 View ¥76.4 ¥73.1 ¥70.8 ¥66.1 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: ¥116.3 7,814In Stock 24,000On Order	Mfr. Part # LD2981CM33TR Mouser Part # 511-LD2981CM33	STMicroelectronics	LDO Voltage Regulators 3.3V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	7,814In Stock 24,000On Order On Order Ship Dates Mfr. #: LD2981CM33TR Stock: 7,814 Can Ship Immediately On Order: 12,000 Expected 12/7/2026 12,000 Expected 12/21/2026 Factory Lead-Time: 30 Weeks	Cut Tape ¥116.3 ¥81.6 ¥73.3 ¥63.9 Reel ¥52.2 View ¥59.6 ¥57 ¥54.8 ¥50.7 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: ¥124.6 4,639In Stock	Mfr. Part # LD2981CU33TR Mouser Part # 511-LD2981CU33	STMicroelectronics	LDO Voltage Regulators 3.3V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	4,639In Stock	Cut Tape ¥124.6 ¥88 ¥78.2 ¥68.3 Reel ¥55.8 View ¥63.6 ¥60.8 ¥58.5 ¥54.3 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: ¥114.6 4,483In Stock	Mfr. Part # LD2981CU50TR Mouser Part # 511-LD2981CU50	STMicroelectronics	LDO Voltage Regulators 5.0V 100mA Positive Learn More about STMicroelectronics stm standard products	Datasheet	4,483In Stock	Cut Tape ¥114.6 ¥85.5 ¥73.7 ¥65.1 Reel ¥54.1 View ¥61.1 ¥58.8 ¥56.8 ¥52.7 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: ¥132.9 17,887In Stock	Mfr. Part # LD39015M10R Mouser Part # 511-LD39015M10R	STMicroelectronics	LDO Voltage Regulators 150mA Lo Quiescent Lo Noise Vltg Reg Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	17,887In Stock	Cut Tape ¥132.9 ¥96 ¥87.2 ¥77.4 Reel ¥62.3 View ¥72.8 ¥69.8 ¥67.4 ¥56.8 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: ¥129.6 10,189In Stock	Mfr. Part # LD39015M12R Mouser Part # 511-LD39015M12R	STMicroelectronics	LDO Voltage Regulators 150mA Lo Quiescent Lo Noise Vltg Reg Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	10,189In Stock	Cut Tape ¥129.6 ¥93.2 ¥84.9 ¥75.4 Reel ¥61.5 View ¥70.9 ¥68.1 ¥65.9 ¥60 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: ¥131.2 12,766In 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	12,766In Stock	Cut Tape ¥131.2 ¥93 ¥83.4 ¥72.8 Reel ¥59.6 View ¥67.8 ¥64.8 ¥62.1 ¥58 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 150mA Voltage Reg. Lo-quiescnt Lo-noise LD39015M33R STMicroelectronics 1: ¥139.5 8,703In 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	8,703In Stock	Cut Tape ¥139.5 ¥97.8 ¥89.2 ¥77.2 View Reel ¥64.6 ¥72.6 ¥68.9 ¥66.4 ¥64.6 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 LD39100PU25RY STMicroelectronics 1: ¥215.9 3,137In Stock	Mfr. Part # LD39100PU25RY Mouser Part # 511-LD39100PU25RY	STMicroelectronics	LDO Voltage Regulators 1 A low quiescent current low noise voltage regulator Learn More about STMicroelectronics stm ld39100 regulators	Datasheet	3,137In Stock	Cut Tape ¥215.9 ¥156.1 ¥141.4 ¥125.1 Reel ¥104.8 View ¥117.4 ¥112.6 ¥109.3 ¥99.2 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 300mA current Linear Reg IC LD39130SJ33R STMicroelectronics 1: ¥142.8 5,381In 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	5,381In Stock	Cut Tape ¥142.8 ¥101.2 ¥91 ¥79.7 View Reel ¥61.8 ¥74.4 ¥71.1 ¥68.6 ¥67.3 ¥61.8 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 Bicmos Vltg Regulatr Ultra Lo Drop LD39150PT-R STMicroelectronics 1: ¥244.2 5,153In Stock	Mfr. Part # LD39150PT-R Mouser Part # 511-LD39150PT-R	STMicroelectronics	LDO Voltage Regulators Bicmos Vltg Regulatr Ultra Lo Drop Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	5,153In Stock	Cut Tape ¥244.2 ¥177.7 ¥160.3 ¥141.8 Reel ¥115.3 View ¥133 ¥127.7 ¥123.9 ¥110.8 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252-5	1.22 V to 5 V	1.5 A	1 Output	Positive	2.5 mA		Adjustable	- 40 C	+ 125 C	40 mV		LD39150	Reel, Cut Tape, MouseReel
LDO Voltage Regulators BICMOS VOLT REG LD3985M33R STMicroelectronics 1: ¥122.9 30,583In Stock	Mfr. Part # LD3985M33R Mouser Part # 511-LD3985M33R	STMicroelectronics	LDO Voltage Regulators BICMOS VOLT REG Learn More about STMicroelectronics stm standard products	Datasheet	30,583In Stock	Cut Tape ¥122.9 ¥86.5 ¥77.7 ¥67.9 Reel ¥52.7 View ¥63.3 ¥60.6 ¥58.3 ¥51.3 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 150mA Capless Ultra Low REG 50mV 100mA LDCL015MR STMicroelectronics 1: ¥189.4 7,384In Stock	Mfr. Part # LDCL015MR Mouser Part # 511-LDCL015MR	STMicroelectronics	LDO Voltage Regulators 150mA Capless Ultra Low REG 50mV 100mA Learn More about STMicroelectronics stm LDCL015	Datasheet	7,384In Stock	Cut Tape ¥189.4 ¥135.7 ¥122.6 ¥108.1 Reel ¥88.5 View ¥101.3 ¥97.2 ¥94.7 ¥86.5 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
LDO Voltage Regulators 500 mA very low drop voltage regulator LDFM33PVR STMicroelectronics 1: ¥147.8 11,206In Stock	Mfr. Part # LDFM33PVR Mouser Part # 511-LDFM33PVR	STMicroelectronics	LDO Voltage Regulators 500 mA very low drop voltage regulator Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	11,206In Stock	Cut Tape ¥147.8 ¥106.3 ¥95.7 ¥84.2 Reel ¥68.6 View ¥78.6 ¥75.2 ¥72.8 ¥68.3 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	3.3 V	500 mA	1 Output	Positive	200 uA		Fixed	- 40 C	+ 125 C	125 mV		LDFM	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 500 mA very low drop voltage regulator LDFMPUR STMicroelectronics 1: ¥147.8 24,424In Stock	Mfr. Part # LDFMPUR Mouser Part # 511-LDFMPUR	STMicroelectronics	LDO Voltage Regulators 500 mA very low drop voltage regulator Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	24,424In Stock	Cut Tape ¥147.8 ¥106.3 ¥95.7 ¥84.2 Reel ¥68.9 View ¥78.6 ¥75.2 ¥72.8 ¥67.3 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	Adjustable	500 mA	1 Output	Positive	200 uA	55 dB	Adjustable	- 40 C	+ 125 C	125 mV		LDFM	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 1 A Very low drop voltage regulator LDFPUR STMicroelectronics 1: ¥192.7 12,741In Stock 9,000Expected 9/10/2027	Mfr. Part # LDFPUR Mouser Part # 511-LDFPUR	STMicroelectronics	LDO Voltage Regulators 1 A Very low drop voltage regulator Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	12,741In Stock 9,000Expected 9/10/2027	Cut Tape ¥192.7 ¥138.9 ¥125.6 ¥111 Reel ¥91.7 View ¥103.8 ¥99.7 ¥97.3 ¥89.7 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	DFN-6	Adjustable	1 A	1 Output	Positive	200 uA	62 dB	Adjustable	- 40 C	+ 125 C	200 mV		LDF	Reel, Cut Tape, MouseReel
LDO Voltage Regulators 1 A Very low drop voltage regulator LDFPVR STMicroelectronics 1: ¥192.7 12,291In Stock	Mfr. Part # LDFPVR Mouser Part # 511-LDFPVR	STMicroelectronics	LDO Voltage Regulators 1 A Very low drop voltage regulator Learn More about STMicroelectronics stm ultra low dropout ldos	Datasheet	12,291In Stock	Cut Tape ¥192.7 ¥138.9 ¥125.6 ¥111 ¥103.8 Reel ¥103.8 MouseReel Available	Min.: 1 Mult.: 1 Max.: 470 : 3,000	SMD/SMT	DFN-6	Adjustable	1 A	1 Output	Positive	200 uA	62 dB	Adjustable	- 40 C	+ 125 C	200 mV		LDF	Reel, Cut Tape, MouseReel