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Power Management ICs

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (HKD) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Output Voltage
LDO Voltage Regulators 5.0V 0.5A Positive KF50BDT-TR STMicroelectronics 1: HK$10.03 2,688In Stock 5,000Expected 24/5/2027	Mfr. Part No. KF50BDT-TR Mouser Part No 511-KF50BDT-TR	STMicroelectronics	LDO Voltage Regulators 5.0V 0.5A Positive Learn More about STMicroelectronics stm standard products	Datasheet	2,688In Stock 5,000Expected 24/5/2027	Cut Tape HK$10.03 HK$7.41 HK$6.76 HK$6.04 View Reel HK$5.17 HK$5.70 HK$5.49 HK$5.33 HK$5.17 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252-3	5 V
Motor/Motion/Ignition Controllers & Drivers Push-pull 4 channel driver with diodes L2293Q STMicroelectronics 1: HK$69.13 2,589In Stock	Mfr. Part No. L2293Q Mouser Part No 511-L2293Q	STMicroelectronics	Motor/Motion/Ignition Controllers & Drivers Push-pull 4 channel driver with diodes Learn More about STMicroelectronics stm brushed dc motor drivers	Datasheet	2,589In Stock	HK$69.13 HK$53.59 HK$49.73 HK$45.46 View HK$42.17 HK$41.18 HK$40.69 Quote	Min.: 1 Mult.: 1	SMD/SMT	VFQFPN-32
Motor/Motion/Ignition Controllers & Drivers PUSH/PULL 4CH DRIVER WITH DIODES L2293QTR STMicroelectronics 1: HK$35.02 3,337In Stock	Mfr. Part No. L2293QTR Mouser Part No 511-L2293QTR	STMicroelectronics	Motor/Motion/Ignition Controllers & Drivers PUSH/PULL 4CH DRIVER WITH DIODES Learn More about STMicroelectronics stm brushed dc motor drivers	Datasheet	3,337In Stock	Cut Tape HK$35.02 HK$26.55 HK$24.41 HK$22.03 View Reel HK$18.99 HK$20.96 HK$20.88 HK$20.14 HK$18.99 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VFQFPN-32
Motor/Motion/Ignition Controllers & Drivers Push-Pull 4-Channel L293B STMicroelectronics 1: HK$72.50 1,346In Stock	Mfr. Part No. L293B Mouser Part No 511-L293B	STMicroelectronics	Motor/Motion/Ignition Controllers & Drivers Push-Pull 4-Channel Learn More about STMicroelectronics stm brushed dc motor drivers	Datasheet	1,346In Stock	HK$72.50 HK$56.31 HK$52.20 HK$47.76 View HK$45.62 HK$44.39 HK$43.98 HK$42.83	Min.: 1 Mult.: 1	Through Hole	PDIP-16
Motor/Motion/Ignition Controllers & Drivers Push-Pull 4-Channel L293D STMicroelectronics 1: HK$76.77 1,023In Stock 1,000Expected 18/12/2026	Mfr. Part No. L293D Mouser Part No 511-L293D	STMicroelectronics	Motor/Motion/Ignition Controllers & Drivers Push-Pull 4-Channel Learn More about STMicroelectronics stm brushed dc motor drivers	Datasheet	1,023In Stock 1,000Expected 18/12/2026	HK$76.77 HK$59.43 HK$55.16 HK$50.39 View HK$44.55 HK$43.48 HK$42.83 HK$40.52	Min.: 1 Mult.: 1	Through Hole	PowerDIP-16
Motor/Motion/Ignition Controllers & Drivers Push-Pull 4-Channel L293DD STMicroelectronics 1: HK$77.35 1,335In Stock	Mfr. Part No. L293DD Mouser Part No 511-L293DD	STMicroelectronics	Motor/Motion/Ignition Controllers & Drivers Push-Pull 4-Channel Learn More about STMicroelectronics stm brushed dc motor drivers	Datasheet	1,335In Stock	HK$77.35 HK$60.09 HK$54.91 HK$50.72 View HK$48.58 HK$47.35 HK$45.21 HK$44.47	Min.: 1 Mult.: 1	SMD/SMT	SOIC-20
Switching Voltage Regulators Wide 6 V to 75 V input voltage synchronous buck controller L3751PUR STMicroelectronics 1: HK$21.70 2,597In Stock	Mfr. Part No. L3751PUR Mouser Part No 511-L3751PUR	STMicroelectronics	Switching Voltage Regulators Wide 6 V to 75 V input voltage synchronous buck controller Learn More about STMicroelectronics stm l3751 controller	Datasheet	2,597In Stock	Cut Tape HK$21.70 HK$17.26 HK$15.37 HK$13.97 Reel HK$11.43 View HK$13.32 HK$13.07 HK$12.66 HK$11.26 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	QFN-20	800 mV to 60 V
LDO Voltage Regulators 3.3V 0.25A Positive L4931ABD33-TR STMicroelectronics 1: HK$10.03 12,727In Stock	Mfr. Part No. L4931ABD33-TR Mouser Part No 511-L4931ABD33-TR	STMicroelectronics	LDO Voltage Regulators 3.3V 0.25A Positive Learn More about STMicroelectronics stm standard products	Datasheet	12,727In Stock	Cut Tape HK$10.03 HK$8.15 HK$6.71 HK$5.98 Reel HK$4.86 View HK$5.66 HK$5.34 HK$5.20 HK$4.80 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-8	3.3 V
LDO Voltage Regulators 5.0V 0.25A Positive L4931ABD50-TR STMicroelectronics 1: HK$11.10 3,381In Stock	Mfr. Part No. L4931ABD50-TR Mouser Part No 511-L4931ABD50-TR	STMicroelectronics	LDO Voltage Regulators 5.0V 0.25A Positive Learn More about STMicroelectronics stm standard products	Datasheet	3,381In Stock	Cut Tape HK$11.10 HK$8.06 HK$7.31 HK$6.48 Reel HK$5.24 View HK$6.07 HK$5.84 HK$5.66 HK$5.14 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-8	5 V
LDO Voltage Regulators 3.3V 0.25A Positive L4931CD33-TR STMicroelectronics 1: HK$11.34 4,307In 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	4,307In Stock	Cut Tape HK$11.34 HK$8.30 HK$7.46 HK$6.60 Reel HK$5.54 View HK$6.20 HK$5.95 HK$5.86 HK$5.29 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-8	3.3 V
LDO Voltage Regulators 5.0V 0.25A Positive L4931CD50-TR STMicroelectronics 1: HK$10.19 7,074In Stock 5,000Expected 1/6/2027	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	7,074In Stock 5,000Expected 1/6/2027	Cut Tape HK$10.19 HK$7.54 HK$6.87 HK$6.15 Reel HK$5.22 View HK$5.80 HK$5.59 HK$5.43 HK$5.06 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	SOIC-8	5 V
LDO Voltage Regulators 3.3V 0.25A Positive L4931CDT33-TR STMicroelectronics 1: HK$11.59 5,318In Stock	Mfr. Part No. L4931CDT33-TR Mouser Part No 511-L4931CDT33-TR	STMicroelectronics	LDO Voltage Regulators 3.3V 0.25A Positive Learn More about STMicroelectronics stm standard products	Datasheet	5,318In Stock	Cut Tape HK$11.59 HK$8.47 HK$7.60 HK$6.71 View Reel HK$5.61 HK$6.29 HK$6.03 HK$5.83 HK$5.61 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252-3	3.3 V
LDO Voltage Regulators 1.5A Regulator Lo Drop L4940D2T12-TR STMicroelectronics 1: HK$18.91 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 HK$18.91 HK$13.97 HK$12.74 HK$11.43 Reel HK$9.45 View HK$10.77 HK$10.44 HK$9.37 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	D2PAK-3 (TO-263-3)	12 V
LDO Voltage Regulators 5.0V 1.5A Positive L4940D2T5-TR STMicroelectronics 1: HK$18.41 2,503In Stock 2,000Expected 17/6/2027	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	2,503In Stock 2,000Expected 17/6/2027	Cut Tape HK$18.41 HK$13.65 HK$12.41 HK$11.10 Reel HK$9.54 View HK$10.52 HK$10.19 HK$8.55 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	D2PAK-3 (TO-263-3)	5 V
LDO Voltage Regulators 5.0V 1.0A Positive L4941BDT-TR STMicroelectronics 1: HK$13.73 3,797In 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	3,797In Stock	Cut Tape HK$13.73 HK$10.28 HK$9.21 HK$8.10 Reel HK$6.36 View HK$7.62 HK$7.33 HK$7.30 HK$6.07 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TO-252-3	5 V
Switching Voltage Regulators 3.3 to 50V Step-Down L4971 STMicroelectronics 1: HK$26.22 1,309In Stock 4,000On Order	Mfr. Part No. L4971 Mouser Part No 511-L4971	STMicroelectronics	Switching Voltage Regulators 3.3 to 50V Step-Down Learn More about STMicroelectronics stm l4971 regulators	Datasheet	1,309In Stock 4,000On Order	HK$26.22 HK$20.06 HK$18.08 HK$16.77 View HK$16.36 HK$13.73 HK$13.40	Min.: 1 Mult.: 1	Through Hole	DIP-8	3.3 V to 50 V
Switching Voltage Regulators 3.3 to 50V Step-Down L4971D STMicroelectronics 1: HK$46.20 776In Stock	Mfr. Part No. L4971D Mouser Part No 511-L4971D	STMicroelectronics	Switching Voltage Regulators 3.3 to 50V Step-Down Learn More about STMicroelectronics stm l4971 regulators	Datasheet	776In Stock	HK$46.20 HK$35.26 HK$31.32 HK$29.18 View HK$27.95 HK$27.13 HK$26.72 HK$24.91 Quote	Min.: 1 Mult.: 1	SMD/SMT	SOIC-16	3.3 V to 50 V
Switching Voltage Regulators 3.3V 3.5A Step-Down L4973D3.3-013TR STMicroelectronics 1: HK$41.35 1,319In Stock 2,000Expected 2/7/2027	Mfr. Part No. L4973D3.3-013TR Mouser Part No 511-L4973D3.3-013TR	STMicroelectronics	Switching Voltage Regulators 3.3V 3.5A Step-Down	Datasheet	1,319In Stock 2,000Expected 2/7/2027	Cut Tape HK$41.35 HK$31.32 HK$28.77 HK$26.06 Reel HK$26.06 MouseReel Available	Min.: 1 Mult.: 1 Max.: 110 : 1,000	SMD/SMT	SOIC-20	3.36 V
Switching Voltage Regulators 5.1V 3.5A Step-Down L4973D5.1-013TR STMicroelectronics 1: HK$49.65 1,038In Stock	Mfr. Part No. L4973D5.1-013TR Mouser Part No 511-L4973D5.1-013TR	STMicroelectronics	Switching Voltage Regulators 5.1V 3.5A Step-Down	Datasheet	1,038In Stock	Cut Tape HK$49.65 HK$37.98 HK$35.02 HK$31.81 Reel HK$28.69 View HK$30.41 HK$29.92 HK$28.28 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	SOIC-20	5.1 V
Switching Voltage Regulators 3.3 to 50V Step-Down L4976D013TR STMicroelectronics 1: HK$46.69 1,871In Stock	Mfr. Part No. L4976D013TR Mouser Part No 511-L4976D013TR	STMicroelectronics	Switching Voltage Regulators 3.3 to 50V Step-Down	Datasheet	1,871In Stock	Cut Tape HK$46.69 HK$35.67 HK$32.88 HK$29.84 Reel HK$26.88 View HK$28.44 HK$28.03 HK$25.89 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	SOIC-16	500 mV to 50 V
Switching Voltage Regulators 3.3 to 50V Step-Down L4978 STMicroelectronics 1: HK$35.02 608In Stock	Mfr. Part No. L4978 Mouser Part No 511-L4978	STMicroelectronics	Switching Voltage Regulators 3.3 to 50V Step-Down	Datasheet	608In Stock	HK$35.02 HK$26.55 HK$23.10 HK$22.11 View HK$20.96 HK$20.30 HK$19.65 HK$18.41	Min.: 1 Mult.: 1	Through Hole	DIP-8	3.3 V to 50 V
Switching Voltage Regulators 3.3 to 50V Step-Down L4978D STMicroelectronics 1: HK$35.02 870In Stock	Mfr. Part No. L4978D Mouser Part No 511-L4978D	STMicroelectronics	Switching Voltage Regulators 3.3 to 50V Step-Down	Datasheet	870In Stock	HK$35.02 HK$26.55 HK$23.18 HK$21.54 View HK$20.80 HK$20.22 HK$19.32 HK$18.66 HK$18.50	Min.: 1 Mult.: 1	SMD/SMT	SOIC-16	3.3 V to 50 V
Switching Voltage Regulators 3.3 to 50V Step-Down L4978D013TR STMicroelectronics 1: HK$32.63 2,825In Stock 18,000On Order	Mfr. Part No. L4978D013TR Mouser Part No 511-L4978D013TR	STMicroelectronics	Switching Voltage Regulators 3.3 to 50V Step-Down	Datasheet	2,825In Stock 18,000On Order On Order Ship Dates Mfr. No: L4978D013TR Stock: 2,825 Can Dispatch Immediately On Order: 4,000 Expected 18/1/2027 4,000 Expected 14/5/2027 10,000 Expected 10/9/2027 Factory Lead Time: 30 Weeks	Cut Tape HK$32.63 HK$24.66 HK$22.61 HK$20.47 Reel HK$18.50 View HK$19.40 HK$19.23 HK$17.76 HK$17.10 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	SOIC-16	3.3 V to 50 V
Power Factor Correction - PFC Very High Power L4981BD013TR STMicroelectronics 1: HK$26.39 5,945In Stock	Mfr. Part No. L4981BD013TR Mouser Part No 511-L4981BD013TR	STMicroelectronics	Power Factor Correction - PFC Very High Power	Datasheet	5,945In Stock	Cut Tape HK$26.39 HK$19.81 HK$18.17 HK$16.36 Reel HK$14.39 View HK$15.45 HK$15.21 HK$13.89 HK$13.65 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	SOIC-20
LDO Voltage Regulators 5V LDO 500mV Vdp 150mA 5.6V to 40V L5150BNTR STMicroelectronics 1: HK$8.71 6,905In Stock 49,000On Order	Mfr. Part No. L5150BNTR Mouser Part No 511-L5150BNTR	STMicroelectronics	LDO Voltage Regulators 5V LDO 500mV Vdp 150mA 5.6V to 40V	Datasheet	6,905In Stock 49,000On Order	Cut Tape HK$8.71 HK$6.31 HK$5.69 HK$5.00 View Reel HK$4.32 HK$4.68 HK$4.48 HK$4.32 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,000 : 1,000	SMD/SMT	SOT-223-3	5 V