Switching Controllers – Mouser Denmark

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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 (DKK) 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: 96,01 kr. 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	96,01 kr. 93,85 kr. 93,62 kr.	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: 31,48 kr. 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 31,48 kr. 30,81 kr. 30,66 kr. 30,66 kr. 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: 31,78 kr. 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	31,78 kr. 31,03 kr. 30,96 kr.	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: 20,29 kr. 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 20,29 kr. 19,84 kr. 19,77 kr. 19,77 kr. 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: 134,21 kr. 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	134,21 kr. 105,19 kr. 95,34 kr. 92,80 kr. View 88,92 kr. 87,28 kr.	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: 28,20 kr. 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	28,20 kr. 27,68 kr. 27,53 kr.	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: 35,81 kr. 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	35,81 kr. 34,99 kr. 34,84 kr.	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: 172,55 kr. 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	172,55 kr. 138,91 kr. 125,78 kr. 119,36 kr. View 116,30 kr. 113,99 kr.	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: 39,17 kr. 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	39,17 kr. 38,34 kr. 38,20 kr.	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: 19,25 kr. 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 19,25 kr. 18,87 kr. 18,80 kr. 18,80 kr. 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: 13,35 kr. 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	13,35 kr. 11,12 kr. 10,22 kr.	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: 8,88 kr. 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 8,88 kr. 6,42 kr. 5,80 kr. 5,13 kr. 5,04 kr. Reel 4,28 kr. 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: 8,88 kr. 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 8,88 kr. 6,42 kr. 5,80 kr. 5,13 kr. Reel 4,38 kr. View 4,80 kr. 4,61 kr. 4,41 kr. 4,33 kr. 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: 5,45 kr. 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 5,45 kr. 3,83 kr. 3,43 kr. 3,00 kr. Reel 2,49 kr. View 2,79 kr. 2,66 kr. 2,60 kr. 2,45 kr.	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: 21,93 kr. 125In Stock	Mfr. Part No. MIC38HC43-1YM Mouser Part No 998-MIC38HC43-1YM	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	125In Stock	21,93 kr. 18,35 kr. 16,71 kr.	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: 5,58 kr. 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 5,58 kr. 3,92 kr. 3,51 kr. 3,07 kr. Reel 2,54 kr. View 2,86 kr. 2,73 kr. 2,61 kr. 2,51 kr.	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: 5,33 kr. 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 5,33 kr. 3,72 kr. 3,33 kr. 2,91 kr. Reel 2,42 kr. View 2,72 kr. 2,59 kr. 2,54 kr. 2,39 kr.	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: 8,88 kr. 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 8,88 kr. 6,42 kr. 5,80 kr. 5,13 kr. Reel 4,37 kr. View 4,80 kr. 4,61 kr. 4,41 kr. 4,30 kr. 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: 17,53 kr. 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 17,53 kr. 13,06 kr. 11,94 kr. 10,74 kr. Reel 9,55 kr. View 10,15 kr. 9,85 kr. 9,33 kr. 9,18 kr. 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: 8,65 kr. 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 8,65 kr. 6,27 kr. 5,68 kr. 5,02 kr. Reel 4,30 kr. View 4,70 kr. 4,51 kr. 4,38 kr. 4,24 kr.	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: 16,71 kr. 165In Stock	Mfr. Part No. MIC38C43AYMM Mouser Part No 998-MIC38C43AYMM	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	165In Stock	16,71 kr. 13,80 kr. 12,61 kr.	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: 15,22 kr. 64In Stock	Mfr. Part No. MIC38HC43YN Mouser Part No 998-MIC38HC43YN	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	64In Stock	15,22 kr. 12,61 kr. 11,41 kr.	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: 10,00 kr. 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 10,00 kr. 7,31 kr. 6,61 kr. 5,86 kr. Reel 5,03 kr. View 5,51 kr. 5,29 kr. 5,22 kr. 4,98 kr. 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: 54,23 kr. 214In Stock	Mfr. Part No. UC2823N Mouser Part No 595-UC2823N	Texas Instruments	Switching Controllers High Speed PWM Contr oller	Datasheet	214In Stock	54,23 kr. 42,00 kr. 38,87 kr. 32,30 kr. 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: 24,02 kr. 2.988In Stock	Mfr. Part No. NCV97200MW33R2G Mouser Part No 863-NCV97200MW33R2G	onsemi	Switching Controllers AUTOMOTIVE SWITCHER	Datasheet	2.988In Stock	Cut Tape 24,02 kr. 17,90 kr. 16,34 kr. 14,62 kr. View Reel 12,23 kr. 13,88 kr. 13,50 kr. 12,83 kr. 12,46 kr. 12,23 kr.	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