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Switching Controllers

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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.	Topology	Number of Outputs	Switching Frequency	Duty Cycle - Max	Input Voltage	Output Voltage	Output Current	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Package/Case	Qualification	Packaging
Switching Controllers 0.5mA Current Mode UC3844BN STMicroelectronics 1: HK$11.10 3,561In Stock	Mfr. Part No. UC3844BN Mouser Part No 511-UC3844BN	STMicroelectronics	Switching Controllers 0.5mA Current Mode Learn More about STMicroelectronics stm standard products	Datasheet	3,561In Stock	HK$11.10 HK$7.98 HK$7.18 HK$6.32 View HK$5.91 HK$5.66 HK$5.47 HK$5.03 HK$4.14	Min.: 1 Mult.: 1	Boost, Flyback, Forward	1 Output	500 kHz	50 %		4.9 V to 5.1 V	1 A	- 40 C	+ 150 C	Through Hole	PDIP-8		Tube
Switching Controllers Single-phase PWM controller for automotive applications A6727TR STMicroelectronics 1: HK$10.69 1,423In Stock NRND	Mfr. Part No. A6727TR Mouser Part No 511-A6727TR NRND	STMicroelectronics	Switching Controllers Single-phase PWM controller for automotive applications Learn More about STMicroelectronics stm a6727 automotive pwm controller	Datasheet	1,423In Stock	Cut Tape HK$10.69 HK$7.74 HK$7.00 HK$6.21 Reel HK$5.08 View HK$5.82 HK$5.59 HK$4.97 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Buck	1 Output	300 kHz	80 %		Adjustable	1.5 A	- 40 C	+ 150 C	SMD/SMT		AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers Prog Current Mode L5991AD STMicroelectronics 1: HK$21.87 89In Stock 1,000Expected 9/7/2027	Mfr. Part No. L5991AD Mouser Part No 511-L5991AD	STMicroelectronics	Switching Controllers Prog Current Mode	Datasheet	89In Stock 1,000Expected 9/7/2027	HK$21.87 HK$16.36 HK$14.06 HK$13.48 View HK$12.33 HK$11.75 HK$11.10 HK$10.85 HK$10.60	Min.: 1 Mult.: 1	Boost, Flyback	1 Output	1 MHz	100 %		5.075 V	1 A	- 40 C	+ 150 C	SMD/SMT	SOIC-16		Tube
Switching Controllers Regulated Volt Mode SG3524P013TR STMicroelectronics 1: HK$14.14 132In Stock 5,000Expected 23/11/2026	Mfr. Part No. SG3524P013TR Mouser Part No 511-SG3524P013TR	STMicroelectronics	Switching Controllers Regulated Volt Mode	Datasheet	132In Stock 5,000Expected 23/11/2026	Cut Tape HK$14.14 HK$11.18 HK$10.11 HK$9.04 View Reel HK$7.61 HK$8.55 HK$8.15 HK$8.14 HK$7.61 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Push-Pull	2 Output	300 kHz	45 %		18 V	100 mA	0 C	+ 70 C	SMD/SMT	SOIC-16		Reel, Cut Tape, MouseReel
Switching Controllers PWM CONTROLLER UC2843BD1 STMicroelectronics 1: HK$14.71 1,191In Stock	Mfr. Part No. UC2843BD1 Mouser Part No 511-UC2843BD1	STMicroelectronics	Switching Controllers PWM CONTROLLER Learn More about STMicroelectronics stm standard products	Datasheet	1,191In Stock	HK$14.71 HK$10.85 HK$9.86 HK$8.80 View HK$8.14 HK$7.92 HK$7.66 HK$7.12 HK$7.00	Min.: 1 Mult.: 1	Boost, Flyback, Forward	1 Output	500 kHz	100 %		4.95 V to 5.05 V	1 A	- 40 C	+ 150 C	SMD/SMT	SOIC-8		Tube
Switching Controllers 0.5mA Current Mode UC2844BD1013TR STMicroelectronics 1: HK$9.04 1,803In Stock 2,500Expected 25/12/2026	Mfr. Part No. UC2844BD1013TR Mouser Part No 511-UC2844BD1013TR	STMicroelectronics	Switching Controllers 0.5mA Current Mode Learn More about STMicroelectronics stm standard products	Datasheet	1,803In Stock 2,500Expected 25/12/2026	Cut Tape HK$9.04 HK$6.52 HK$5.89 HK$5.20 Reel HK$4.27 View HK$4.87 HK$4.67 HK$4.55 HK$4.09 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Flyback, Forward	1 Output	500 kHz	50 %		4.95 V to 5.05 V	1 A	- 40 C	+ 150 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers 0.5mA Current Mode UC3842BD1 STMicroelectronics 1: HK$10.36 1,150In Stock 4,000Expected 5/3/2027	Mfr. Part No. UC3842BD1 Mouser Part No 511-UC3842BD	STMicroelectronics	Switching Controllers 0.5mA Current Mode Learn More about STMicroelectronics stm standard products	Datasheet	1,150In Stock 4,000Expected 5/3/2027	HK$10.36 HK$7.53 HK$6.81 HK$6.03 View HK$5.59 HK$5.43 HK$5.20 HK$4.70	Min.: 1 Mult.: 1	Boost, Flyback, Forward	1 Output	500 kHz	100 %		4.9 V to 5.1 V	1 A	- 40 C	+ 150 C	SMD/SMT	SOIC-8		Tube
Switching Controllers 0.5mA Current Mode UC3842BD1013TR STMicroelectronics 1: HK$8.14 2,022In Stock	Mfr. Part No. UC3842BD1013TR Mouser Part No 511-UC3842BD1013TR	STMicroelectronics	Switching Controllers 0.5mA Current Mode Learn More about STMicroelectronics stm standard products	Datasheet	2,022In Stock	Cut Tape HK$8.14 HK$5.84 HK$5.28 HK$4.64 Reel HK$3.85 View HK$4.34 HK$4.16 HK$4.04 HK$3.76 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Flyback, Forward	1 Output	500 kHz	100 %		4.9 V to 5.1 V	1 A	- 40 C	+ 150 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers 0.5mA Current Mode UC3843BD1 STMicroelectronics 1: HK$15.21 1,239In Stock	Mfr. Part No. UC3843BD1 Mouser Part No 511-UC3843BD	STMicroelectronics	Switching Controllers 0.5mA Current Mode Learn More about STMicroelectronics stm standard products	Datasheet	1,239In Stock	HK$15.21 HK$11.18 HK$10.19 HK$9.04 View HK$8.47 HK$8.19 HK$8.17 HK$7.64 HK$7.48	Min.: 1 Mult.: 1	Boost, Flyback, Forward	1 Output	500 kHz	100 %		4.9 V to 5.1 V	1 A	- 40 C	+ 150 C	SMD/SMT	SOIC-8		Tube
Switching Controllers 0.5mA Current Mode UC3844BD1013TR STMicroelectronics 1: HK$5.18 5,151In Stock 5,000Expected 13/8/2027	Mfr. Part No. UC3844BD1013TR Mouser Part No 511-UC3844BD1013TR	STMicroelectronics	Switching Controllers 0.5mA Current Mode Learn More about STMicroelectronics stm standard products	Datasheet	5,151In Stock 5,000Expected 13/8/2027	Cut Tape HK$5.18 HK$3.57 HK$3.18 HK$2.77 Reel HK$1.93 View HK$2.56 HK$2.14 HK$2.05 HK$1.85 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Flyback, Forward	1 Output	500 kHz	50 %		4.9 V to 5.1 V	1 A	- 40 C	+ 150 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers PWM CONTROLLER UC3845BD1 STMicroelectronics 1: HK$13.97 363In Stock 2,000Expected 23/11/2026	Mfr. Part No. UC3845BD1 Mouser Part No 511-UC3845BD1	STMicroelectronics	Switching Controllers PWM CONTROLLER Learn More about STMicroelectronics stm standard products	Datasheet	363In Stock 2,000Expected 23/11/2026	HK$13.97 HK$10.28 HK$9.37 HK$8.30 View HK$7.73 HK$7.51 HK$7.27 HK$6.63 HK$6.49	Min.: 1 Mult.: 1	Boost, Flyback, Forward	1 Output	500 kHz	50 %		4.9 V to 5.1 V	1 A	- 40 C	+ 150 C	SMD/SMT	SOIC-8		Tube
Switching Controllers 0.5mA Current Mode UC3845BN STMicroelectronics 1: HK$10.11 1,998In Stock	Mfr. Part No. UC3845BN Mouser Part No 511-UC3845BN	STMicroelectronics	Switching Controllers 0.5mA Current Mode Learn More about STMicroelectronics stm standard products	Datasheet	1,998In Stock	HK$10.11 HK$7.26 HK$6.53 HK$5.75 View HK$5.37 HK$5.15 HK$4.98 HK$3.83 HK$3.76	Min.: 1 Mult.: 1	Boost, Flyback, Forward	1 Output	500 kHz	50 %		4.9 V to 5.1 V	1 A	- 40 C	+ 150 C	Through Hole	PDIP-8		Tube
Switching Controllers Hi Vltg resonant Controller L6599D STMicroelectronics 1: HK$30.09 437In Stock NRND	Mfr. Part No. L6599D Mouser Part No 511-L6599D NRND	STMicroelectronics	Switching Controllers Hi Vltg resonant Controller	Datasheet	437In Stock	HK$30.09 HK$22.61 HK$20.14 HK$18.66 View HK$17.67 HK$17.18 HK$16.28 HK$15.78 HK$15.62	Min.: 1 Mult.: 1	Half Bridge	1 Output	500 kHz	52 %		13.3 V	800 mA	- 40 C	+ 150 C	SMD/SMT	SOIC-16		Tube
Switching Controllers Advanced quasi-resonant offline high voltage converter with E-mode GaN HEMT VIPERGAN100TR STMicroelectronics 1: HK$35.26 129In Stock NRND	Mfr. Part No. VIPERGAN100TR Mouser Part No 511-VIPERGAN100TR NRND	STMicroelectronics	Switching Controllers Advanced quasi-resonant offline high voltage converter with E-mode GaN HEMT Learn More about STMicroelectronics stm vipergan100 offline high voltage converter	Datasheet	129In Stock	Cut Tape HK$35.26 HK$27.21 HK$25.15 HK$23.02 View Reel HK$20.22 HK$22.52 HK$21.78 HK$21.13 HK$20.88 HK$20.22 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	Flyback	1 Output	330 kHz			6 V	4 mA	- 40 C	+ 150 C	SMD/SMT	VFQFN-16		Reel, Cut Tape, MouseReel
Switching Controllers Voltage Mode w/Sync SG2525AP013TR STMicroelectronics 1: HK$25.24 28,645On Order	Mfr. Part No. SG2525AP013TR Mouser Part No 511-SG2525AP013TR	STMicroelectronics	Switching Controllers Voltage Mode w/Sync	Datasheet	28,645On Order On Order Ship Dates Mfr. No: SG2525AP013TR Stock: 0 On Order: 11,145 Expected 23/7/2027 17,500 Expected 30/7/2027 Factory Lead Time: 52 Weeks	Cut Tape HK$25.24 HK$18.91 HK$17.26 HK$15.04 View Reel HK$12.58 HK$14.22 HK$13.97 HK$13.56 HK$12.58 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Push-Pull	2 Output	100 Hz to 400 kHz	49 %		5.1 V	500 mA	- 25 C	+ 85 C	SMD/SMT	SOIC-16		Reel, Cut Tape, MouseReel
Switching Controllers Advanced high power factor flyback controller, valley locking, max pwr control HVLED101TR STMicroelectronics 1: HK$16.11 2,491On Order	Mfr. Part No. HVLED101TR Mouser Part No 511-HVLED101TR	STMicroelectronics	Switching Controllers Advanced high power factor flyback controller, valley locking, max pwr control Learn More about STMicroelectronics stm hvled101 controllers	Datasheet	2,491On Order	Cut Tape HK$16.11 HK$11.92 HK$10.85 HK$9.70 View Reel HK$8.19 HK$9.12 HK$8.80 HK$8.19 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		1 Output								SMD/SMT	SOP-14		Reel, Cut Tape, MouseReel
Switching Controllers MultiMode Controller for SMPS L6566BTR STMicroelectronics 1: HK$16.60 2,499Expected 23/4/2027	Mfr. Part No. L6566BTR Mouser Part No 511-L6566BTR	STMicroelectronics	Switching Controllers MultiMode Controller for SMPS	Datasheet	2,499Expected 23/4/2027	Cut Tape HK$16.60 HK$13.32 HK$11.34 HK$10.19 View Reel HK$8.71 HK$9.62 HK$9.29 HK$9.21 HK$8.71 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Flyback	1 Output	107 kHz	75 %		5 V	800 mA	- 40 C	+ 150 C	SMD/SMT	SO-16 N		Reel, Cut Tape, MouseReel
Switching Controllers Hi-Volt resonant controller L6599ADTR STMicroelectronics 1: HK$18.58 4,998On Order	Mfr. Part No. L6599ADTR Mouser Part No 511-L6599ADTR	STMicroelectronics	Switching Controllers Hi-Volt resonant controller	Datasheet	4,998On Order On Order Ship Dates Mfr. No: L6599ADTR Stock: 0 On Order: 2,498 Expected 12/2/2027 2,500 Expected 23/4/2027 Factory Lead Time: 37 Weeks	Cut Tape HK$18.58 HK$14.14 HK$13.07 HK$11.92 View Reel HK$10.19 HK$11.26 HK$10.93 HK$10.19 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Half Bridge	1 Output	500 kHz	52 %		13.3 V	800 mA	- 40 C	+ 150 C	SMD/SMT	SO N		Reel, Cut Tape, MouseReel
Switching Controllers Voltage Mode w/Sync SG2525AP STMicroelectronics 1: HK$37.81 1,973On Order	Mfr. Part No. SG2525AP Mouser Part No 511-SG2525AP	STMicroelectronics	Switching Controllers Voltage Mode w/Sync	Datasheet	1,973On Order	HK$37.81 HK$28.69 HK$25.40 HK$23.92 View HK$22.69 HK$22.11 HK$19.65 HK$18.66 HK$18.50	Min.: 1 Mult.: 1	Push-Pull	2 Output	100 Hz to 400 kHz	49 %		5.1 V	500 mA	- 25 C	+ 85 C	SMD/SMT	SOIC-16		Tube
Switching Controllers Voltage/Current Cont TSM108IDT STMicroelectronics 1: HK$14.63 7,500Expected 6/8/2027	Mfr. Part No. TSM108IDT Mouser Part No 511-TSM108IDT	STMicroelectronics	Switching Controllers Voltage/Current Cont	Datasheet	7,500Expected 6/8/2027	Cut Tape HK$14.63 HK$10.69 HK$9.70 HK$8.63 View Reel HK$7.31 HK$8.10 HK$7.79 HK$7.72 HK$7.31 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Buck	1 Output	70 kHz to 130 kHz	100 %		Adjustable	80 mA	- 40 C	+ 125 C	SMD/SMT	SOIC-14		Reel, Cut Tape, MouseReel
Switching Controllers 0.5mA Current Mode UC2845BD1013TR STMicroelectronics 1: HK$6.90 17,500On Order	Mfr. Part No. UC2845BD1013TR Mouser Part No 511-UC2845BD1013TR	STMicroelectronics	Switching Controllers 0.5mA Current Mode Learn More about STMicroelectronics stm standard products	Datasheet	17,500On Order On Order Ship Dates Mfr. No: UC2845BD1013TR Stock: 0 On Order: 5,000 Expected 2/11/2026 5,000 Expected 15/1/2027 7,500 Expected 30/4/2027 Factory Lead Time: 52 Weeks	Cut Tape HK$6.90 HK$4.87 HK$4.37 HK$3.82 View Reel HK$3.14 HK$3.56 HK$3.40 HK$3.28 HK$3.14 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Flyback, Forward	1 Output	500 kHz	50 %		4.95 V to 5.05 V	1 A	- 40 C	+ 150 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers 0.5mA Current Mode UC3843BD1013TR STMicroelectronics 1: HK$4.36 17,500On Order	Mfr. Part No. UC3843BD1013TR Mouser Part No 511-UC3843BD1013TR	STMicroelectronics	Switching Controllers 0.5mA Current Mode Learn More about STMicroelectronics stm standard products	Datasheet	17,500On Order On Order Ship Dates Mfr. No: UC3843BD1013TR Stock: 0 On Order: 5,000 Expected 2/4/2027 12,500 Expected 2/7/2027 Factory Lead Time: 52 Weeks	Cut Tape HK$4.36 HK$3.18 HK$2.84 HK$2.47 View Reel HK$1.93 HK$2.29 HK$2.19 HK$2.10 HK$1.93 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Flyback, Forward	1 Output	500 kHz	100 %		4.9 V to 5.1 V	1 A	- 40 C	+ 150 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers 0.5mA Current Mode UC3845BD1013TR STMicroelectronics 1: HK$4.36 7,500On Order	Mfr. Part No. UC3845BD1013TR Mouser Part No 511-UC3845BD1013TR	STMicroelectronics	Switching Controllers 0.5mA Current Mode Learn More about STMicroelectronics stm standard products	Datasheet	7,500On Order On Order Ship Dates Mfr. No: UC3845BD1013TR Stock: 0 On Order: 2,500 Expected 5/3/2027 5,000 Expected 12/3/2027 Factory Lead Time: 52 Weeks	Cut Tape HK$4.36 HK$3.10 HK$2.77 HK$2.41 View Reel HK$1.95 HK$2.24 HK$2.13 HK$2.05 HK$1.95 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Flyback, Forward	1 Output	500 kHz	50 %		4.9 V to 5.1 V	1 A	- 40 C	+ 150 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers High-side switch controller intelligent fuse protection 12V, 24V, 48V automotive VNF1048FTR STMicroelectronics 1: HK$37.98 3,000Expected 23/4/2027	Mfr. Part No. VNF1048FTR Mouser Part No 511-VNF1048FTR	STMicroelectronics	Switching Controllers High-side switch controller intelligent fuse protection 12V, 24V, 48V automotive Learn More about STMicroelectronics stm vnf1048f automotive switch controller	Datasheet	3,000Expected 23/4/2027	Cut Tape HK$37.98 HK$28.69 HK$26.39 HK$23.84 View Reel HK$19.97 HK$22.61 HK$22.52 HK$21.95 HK$19.97 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		1 Output	8 MHz				250 uA	- 40 C	+ 150 C	SMD/SMT	QFN32L	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers High-side switch controller with intelligent fuse protection for 12 V, 24 V and 48 V automotive applications VNF1248FTR STMicroelectronics 1: HK$37.32 4,999On Order New Product	Mfr. Part No. VNF1248FTR Mouser Part No 511-VNF1248FTR New Product	STMicroelectronics	Switching Controllers High-side switch controller with intelligent fuse protection for 12 V, 24 V and 48 V automotive applications Learn More about STMicroelectronics stmicro vnf1248f switch controller	Datasheet	4,999On Order	Cut Tape HK$37.32 HK$28.69 HK$25.98 HK$23.51 HK$22.36 Reel HK$20.30 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		1 Output	8 MHz		6 V to 60 V			- 40 C	+ 150 C	SMD/SMT	QFN-32	AEC-Q100	Reel, Cut Tape, MouseReel