Switching Controllers – Mouser United Kingdom

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Buck Converters for Power Over Ethernet

A buck converter is a power efficient voltage step-down converter that changes a higher voltage to a lower voltage. Whereas a linear regulator can achieve the same purpose, regulators can waste more energy via conversion of excess energy to heat. For this reason, a buck DC/DC converter is the preferred choice for power-efficient designs. A DC/DC boost converter, also known as a step-up converter, is a semiconductor device or electrical circuit that has an output DC voltage that is greater than the DC input voltage.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Topology	Number of Outputs	Switching Frequency	Duty Cycle - Max	Output Voltage	Output Current	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Package/Case	Qualification	Packaging
Switching Controllers PP, Hi Eff, Sync Buck Sw Reg LTC1629CG-PG#PBF Analog Devices 1: £11.24 768In Stock	Mfr. Part No. LTC1629CG-PG#PBF Mouser Part No 584-LTC1629CG-PG#PBF	Analog Devices	Switching Controllers PP, Hi Eff, Sync Buck Sw Reg	Datasheet	768In Stock	£11.24 £10.98 £10.96	Min.: 1 Mult.: 1	Buck	2 Output	300 kHz	99 %	1.26 V to 2.5 V	240 A	0 C	+ 70 C	SMD/SMT	SSOP-28		Tube
Switching Controllers Low-Cost, High-Frequency, Current-Mode P MAX1954EUB+T Analog Devices / Maxim Integrated 1: £3.68 2,480In Stock	Mfr. Part No. MAX1954EUB+T Mouser Part No 700-MAX1954EUBT	Analog Devices / Maxim Integrated	Switching Controllers Low-Cost, High-Frequency, Current-Mode P	Datasheet	2,480In Stock	Cut Tape £3.68 £3.61 £3.59 £3.59 MouseReel Available	Min.: 1 Mult.: 1	Boost, Buck	1 Output	300 kHz	89 %	800 mV to 11.35 V	25 A	- 40 C	+ 85 C	SMD/SMT	USOP-10		Reel, Cut Tape, MouseReel
Switching Controllers 40V Dual Low IQ, 100 DC Sync Buck CTL LTC7805RUFDM#PBF Analog Devices 1: £3.72 1,433In Stock	Mfr. Part No. LTC7805RUFDM#PBF Mouser Part No 584-LTC7805RUFDMPBF	Analog Devices	Switching Controllers 40V Dual Low IQ, 100 DC Sync Buck CTL Learn More about Analog Devices adi ltc7805 step down controller	Datasheet	1,433In Stock	£3.72 £3.63 £3.62	Min.: 1 Mult.: 1	Boost, Buck	2 Output	3 MHz	100 %	800 mV to 40 V	180 uA	- 40 C	+ 150 C	SMD/SMT	QFN-28		Tube
Switching Controllers 5V/3.3V or Adjustable, 100 Duty Cycle, MAX1626ESA+T Analog Devices / Maxim Integrated 1: £2.37 2,300In Stock	Mfr. Part No. MAX1626ESA+T Mouser Part No 700-MAX1626ESAT	Analog Devices / Maxim Integrated	Switching Controllers 5V/3.3V or Adjustable, 100 Duty Cycle,	Datasheet	2,300In Stock	Cut Tape £2.37 £2.32 £2.31 £2.31 MouseReel Available	Min.: 1 Mult.: 1	Buck	1 Output	300 kHz	100 %	3.3 V, 5 V	3 A	- 40 C	+ 85 C	SMD/SMT	SOIC-Narrow-8		Reel, Cut Tape, MouseReel
Switching Controllers High-Voltage, Step-Down Controller with MAX797HESE+ Analog Devices / Maxim Integrated 1: £15.71 416In Stock	Mfr. Part No. MAX797HESE+ Mouser Part No 700-MAX797HESE	Analog Devices / Maxim Integrated	Switching Controllers High-Voltage, Step-Down Controller with	Datasheet	416In Stock	£15.71 £12.31 £11.16 £10.86 View £10.41 £10.21	Min.: 1 Mult.: 1	Buck	1 Output	300 kHz	96 %	3 V, 5 V, 2.5 V to 6 V	10 A	- 40 C	+ 85 C	SMD/SMT	SOIC-16		Tube
Switching Controllers Hi Speed C Mode Pulse Width Mods LT1243CN8#PBF Analog Devices 1: £3.30 336In Stock	Mfr. Part No. LT1243CN8#PBF Mouser Part No 584-LT1243CN8#PBF	Analog Devices	Switching Controllers Hi Speed C Mode Pulse Width Mods	Datasheet	336In Stock	£3.30 £3.24 £3.22	Min.: 1 Mult.: 1	Buck	1 Output	500 kHz	96 %	5 V	1 A	0 C	+ 100 C	Through Hole	PDIP-8		Tube
Switching Controllers Hi Speed C Mode Pulse Width Mods LT1244IS8#PBF Analog Devices 1: £4.19 345In Stock	Mfr. Part No. LT1244IS8#PBF Mouser Part No 584-LT1244IS8#PBF	Analog Devices	Switching Controllers Hi Speed C Mode Pulse Width Mods	Datasheet	345In Stock	£4.19 £4.09 £4.08	Min.: 1 Mult.: 1	Buck	1 Output	500 kHz	96 %	5 V	1 A	- 40 C	+ 100 C	SMD/SMT	SOIC-8		Tube
Switching Controllers PP, Hi Eff, Sync Buck Sw Reg LTC1629IG#PBF Analog Devices 1: £20.19 611In Stock	Mfr. Part No. LTC1629IG#PBF Mouser Part No 584-LTC1629IG#PBF	Analog Devices	Switching Controllers PP, Hi Eff, Sync Buck Sw Reg	Datasheet	611In Stock	£20.19 £16.26 £14.72 £13.97 View £13.61 £13.34	Min.: 1 Mult.: 1	Buck	2 Output	300 kHz	99 %	1.26 V to 2.5 V	240 A	- 40 C	+ 85 C	SMD/SMT	SSOP-28		Tube
Switching Controllers Low IQ Triple Output Buck-Buck-Boost CTL LTC7811IUJ#PBF Analog Devices 1: £4.58 485In Stock	Mfr. Part No. LTC7811IUJ#PBF Mouser Part No 584-LTC7811IUJ#PBF	Analog Devices	Switching Controllers Low IQ Triple Output Buck-Buck-Boost CTL Learn More about Analog Devices adi ltc7811 triple output controller	Datasheet	485In Stock	£4.58 £4.49 £4.47	Min.: 1 Mult.: 1	Boost, Buck	3 Output	100 kHz to 3 MHz	100 %	800 mV to 40 V	20 A	- 40 C	+ 125 C	SMD/SMT	QFN-40		Tube
Switching Controllers Low-Cost, Wide Input Range, Step-Down Co MAX8546EUB+T Analog Devices / Maxim Integrated 1: £2.25 1,232In Stock	Mfr. Part No. MAX8546EUB+T Mouser Part No 700-MAX8546EUBT	Analog Devices / Maxim Integrated	Switching Controllers Low-Cost, Wide Input Range, Step-Down Co	Datasheet	1,232In Stock	Cut Tape £2.25 £2.21 £2.20 £2.20 MouseReel Available	Min.: 1 Mult.: 1	Buck	1 Output	300 kHz	95 %	800 mV to 23 V	15 A	- 40 C	+ 85 C	SMD/SMT	UMAX-10		Reel, Cut Tape, MouseReel
Switching Controllers Sync Buck, PWM Ctrl 300Khz, 8ns MCP19035-AAABE/MF Microchip Technology 1: £1.56 60In Stock	Mfr. Part No. MCP19035-AAABE/MF Mouser Part No 579-MCP19035AAABE/MF	Microchip Technology	Switching Controllers Sync Buck, PWM Ctrl 300Khz, 8ns Learn More about Microchip Technology microchip mcp19035	Datasheet	60In Stock	£1.56 £1.30 £1.20	Min.: 1 Mult.: 1	Buck	1 Output	300 kHz	85 %	5 V	50 mA	- 40 C	+ 125 C	SMD/SMT	DFN-10	AEC-Q100	Tube
Switching Controllers 16V Input Step-Down DCDC Controller XC9220C093MR-G Torex Semiconductor 1: £1.04 90In Stock	Mfr. Part No. XC9220C093MR-G Mouser Part No 865-XC9220C093MR-G	Torex Semiconductor	Switching Controllers 16V Input Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	90In Stock	Cut Tape £1.04 £0.751 £0.679 £0.601 £0.59 Reel £0.501 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	300 kHz	100 %	Adjustable	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers 16V Input Step-Down DCDC Controller XC9221B09AMR-G Torex Semiconductor 1: £1.04 41In Stock	Mfr. Part No. XC9221B09AMR-G Mouser Part No 865-XC9221B09AMR-G	Torex Semiconductor	Switching Controllers 16V Input Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	41In Stock	Cut Tape £1.04 £0.751 £0.679 £0.601 Reel £0.512 View £0.562 £0.54 £0.516 £0.506 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	1 MHz	100 %	Adjustable	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers 12V Green Voltage Mode High Efficiency Synchronous Buck PWM Controller RT8130CGQW Richtek 1: £0.638 1,497In Stock	Mfr. Part No. RT8130CGQW Mouser Part No 835-RT8130CGQW	Richtek	Switching Controllers 12V Green Voltage Mode High Efficiency Synchronous Buck PWM Controller	Datasheet	1,497In Stock	Cut Tape £0.638 £0.448 £0.402 £0.351 Reel £0.292 View £0.327 £0.312 £0.305 £0.287	Min.: 1 Mult.: 1 : 1,500	Buck	2 Output	300 kHz	88 %	5 V to 12 V	4 mA	- 40 C	+ 85 C	SMD/SMT	WDFN-10		Reel, Cut Tape
Switching Controllers Monolithic SMPS Controller MIC38HC43-1YM Microchip Technology 1: £2.57 125In Stock	Mfr. Part No. MIC38HC43-1YM Mouser Part No 998-MIC38HC43-1YM	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	125In Stock	£2.57 £2.15 £1.96	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	500 kHz	96 %	5 V	1 A	- 40 C	+ 85 C	SMD/SMT	SOIC-14		Tube
Switching Controllers 12V Green Voltage Mode High Efficiency Synchronous Buck PWM Controller RT8115CGQW Richtek 1: £0.653 1,500In Stock	Mfr. Part No. RT8115CGQW Mouser Part No 835-RT8115CGQW	Richtek	Switching Controllers 12V Green Voltage Mode High Efficiency Synchronous Buck PWM Controller	Datasheet	1,500In Stock	Cut Tape £0.653 £0.458 £0.41 £0.359 Reel £0.298 View £0.334 £0.32 £0.306 £0.293	Min.: 1 Mult.: 1 : 1,500	Buck	2 Output	300 kHz	85 %	5 V to 12 V	1.5 A	- 40 C	+ 85 C	SMD/SMT	WDFN-10		Reel, Cut Tape
Switching Controllers Single Phase PWM Controller with Light Load Efficiency Optimization RT8123AGQW Richtek 1: £0.623 1,498In Stock	Mfr. Part No. RT8123AGQW Mouser Part No 835-RT8123AGQW	Richtek	Switching Controllers Single Phase PWM Controller with Light Load Efficiency Optimization	Datasheet	1,498In Stock	Cut Tape £0.623 £0.436 £0.39 £0.34 Reel £0.284 View £0.318 £0.303 £0.297 £0.279	Min.: 1 Mult.: 1 : 1,500	Buck	2 Output	200 kHz	95 %	800 mV to 3.3 V	150 mA	- 40 C	+ 85 C	SMD/SMT	WQFN-16		Reel, Cut Tape
Switching Controllers 16V Input Step-Down DCDC Controller XC9221D095MR-G Torex Semiconductor 1: £1.04 55In Stock	Mfr. Part No. XC9221D095MR-G Mouser Part No 865-XC9221D095MR-G	Torex Semiconductor	Switching Controllers 16V Input Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	55In Stock	Cut Tape £1.04 £0.751 £0.679 £0.601 Reel £0.512 View £0.562 £0.54 £0.516 £0.504 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	500 kHz	100 %	Adjustable	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers High Efficiency, Synchronous Step-Up & Down DC / DC Controller XC9303B093KR-G Torex Semiconductor 1: £2.05 68In Stock	Mfr. Part No. XC9303B093KR-G Mouser Part No 865-XC9303B093KR-G	Torex Semiconductor	Switching Controllers High Efficiency, Synchronous Step-Up & Down DC / DC Controller Learn More about Torex Semiconductor torex xc930x step up down dc dc controller ics	Datasheet	68In Stock	Cut Tape £2.05 £1.53 £1.40 £1.26 Reel £1.12 View £1.19 £1.15 £1.09 £1.07 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Boost, Buck	1 Output	300 kHz	88 %	2 V to 6 V	800 mA	- 40 C	+ 85 C	SMD/SMT	MSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers Dual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs RT6575AGQW Richtek 1: £1.01 344In Stock	Mfr. Part No. RT6575AGQW Mouser Part No 835-RT6575AGQW	Richtek	Switching Controllers Dual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs	Datasheet	344In Stock	Cut Tape £1.01 £0.734 £0.664 £0.588 Reel £0.503 View £0.55 £0.528 £0.512 £0.497	Min.: 1 Mult.: 1 : 1,500	Buck	4 Output	300 kHz, 355 kHz	98 %	Adjustable	100 mA	- 40 C	+ 85 C	SMD/SMT	WQFN-20		Reel, Cut Tape
Switching Controllers Monolithic SMPS Controller MIC38C43AYMM Microchip Technology 1: £1.96 165In Stock	Mfr. Part No. MIC38C43AYMM Mouser Part No 998-MIC38C43AYMM	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	165In Stock	£1.96 £1.62 £1.48	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	500 kHz	96 %	5 V	500 mA	- 40 C	+ 85 C	SMD/SMT	MSOP-8		Tube
Switching Controllers Monolithic SMPS Controller MIC38HC43YN Microchip Technology 1: £1.78 64In Stock	Mfr. Part No. MIC38HC43YN Mouser Part No 998-MIC38HC43YN	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	64In Stock	£1.78 £1.48 £1.34	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	500 kHz	96 %	5 V	1 A	- 40 C	+ 85 C	Through Hole	DIP-8		Tube
Switching Controllers Step-Up & Step-Down 180kHz DCDC Controller XC9301A502MR-G Torex Semiconductor 1: £1.17 85In Stock	Mfr. Part No. XC9301A502MR-G Mouser Part No 865-XC9301A502MR-G	Torex Semiconductor	Switching Controllers Step-Up & Step-Down 180kHz DCDC Controller Learn More about Torex Semiconductor torex xc930x step up down dc dc controller ics	Datasheet	85In Stock	Cut Tape £1.17 £0.856 £0.773 £0.685 Reel £0.588 View £0.644 £0.619 £0.611 £0.582 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Boost, Buck	1 Output	180 kHz	92 %	5 V	250 mA	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers High Speed PWM Contr oller UC2823N Texas Instruments 1: £6.35 214In Stock	Mfr. Part No. UC2823N Mouser Part No 595-UC2823N	Texas Instruments	Switching Controllers High Speed PWM Contr oller	Datasheet	214In Stock	£6.35 £4.91 £4.55 £3.78 View Quote	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	1 MHz	100 %	5.1 V	2 A	- 25 C	+ 85 C	Through Hole	PDIP-16		Tube
Switching Controllers AUTOMOTIVE SWITCHER NCV97200MW33R2G onsemi 1: £2.81 2,988In Stock	Mfr. Part No. NCV97200MW33R2G Mouser Part No 863-NCV97200MW33R2G	onsemi	Switching Controllers AUTOMOTIVE SWITCHER	Datasheet	2,988In Stock	Cut Tape £2.81 £2.10 £1.91 £1.71 View Reel £1.43 £1.62 £1.58 £1.50 £1.46 £1.43	Min.: 1 Mult.: 1 : 4,000	Buck	2 Output	2 MHz	90 %	3.3 V, 5 V	400 mA	- 40 C	+ 150 C	SMD/SMT	QFNW-20	AEC-Q101	Reel, Cut Tape