Switching Controllers – Mouser Ireland

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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 (EUR) 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: €12.87 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	€12.87 €12.58 €12.55	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: €4.22 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 €4.22 €4.13 €4.11 €4.11 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: €4.26 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	€4.26 €4.16 €4.15	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: €2.72 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 €2.72 €2.66 €2.65 €2.65 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: €17.99 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	€17.99 €14.10 €12.78 €12.44 View €11.92 €11.70	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: €3.78 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	€3.78 €3.71 €3.69	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: €4.80 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	€4.80 €4.69 €4.67	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: €23.13 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	€23.13 €18.62 €16.86 €16.00 View €15.59 €15.28	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: €5.25 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	€5.25 €5.14 €5.12	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: €2.58 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 €2.58 €2.53 €2.52 €2.52 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: €1.79 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	€1.79 €1.49 €1.37	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: €1.19 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 €1.19 €0.86 €0.778 €0.688 €0.676 Reel €0.574 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: €1.19 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 €1.19 €0.86 €0.778 €0.688 Reel €0.587 View €0.644 €0.618 €0.591 €0.58 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: €0.731 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 €0.731 €0.513 €0.46 €0.402 Reel €0.334 View €0.374 €0.357 €0.349 €0.329	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: €2.94 125In Stock	Mfr. Part No. MIC38HC43-1YM Mouser Part No 998-MIC38HC43-1YM	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	125In Stock	€2.94 €2.46 €2.24	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: €0.748 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 €0.748 €0.525 €0.47 €0.411 Reel €0.341 View €0.383 €0.366 €0.35 €0.336	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: €0.714 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 €0.714 €0.499 €0.447 €0.39 Reel €0.325 View €0.364 €0.347 €0.34 €0.32	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: €1.19 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 €1.19 €0.86 €0.778 €0.688 Reel €0.586 View €0.644 €0.618 €0.591 €0.577 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: €2.35 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 €2.35 €1.75 €1.60 €1.44 Reel €1.28 View €1.36 €1.32 €1.25 €1.23 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: €1.16 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 €1.16 €0.841 €0.761 €0.673 Reel €0.576 View €0.63 €0.605 €0.587 €0.569	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: €2.24 165In Stock	Mfr. Part No. MIC38C43AYMM Mouser Part No 998-MIC38C43AYMM	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	165In Stock	€2.24 €1.85 €1.69	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: €2.04 64In Stock	Mfr. Part No. MIC38HC43YN Mouser Part No 998-MIC38HC43YN	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	64In Stock	€2.04 €1.69 €1.53	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: €1.34 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 €1.34 €0.98 €0.886 €0.785 Reel €0.674 View €0.738 €0.709 €0.70 €0.667 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: €7.27 214In Stock	Mfr. Part No. UC2823N Mouser Part No 595-UC2823N	Texas Instruments	Switching Controllers High Speed PWM Contr oller	Datasheet	214In Stock	€7.27 €5.63 €5.21 €4.33 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: €3.22 2,988In Stock	Mfr. Part No. NCV97200MW33R2G Mouser Part No 863-NCV97200MW33R2G	onsemi	Switching Controllers AUTOMOTIVE SWITCHER	Datasheet	2,988In Stock	Cut Tape €3.22 €2.40 €2.19 €1.96 View Reel €1.64 €1.86 €1.81 €1.72 €1.67 €1.64	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