Switching Controllers – Mouser Singapore

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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 (SGD) 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: $20.35 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	$20.35 $19.90 $19.48 $19.08 View $18.78 $18.50 Quote	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: $6.68 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 $6.68 $6.53 $6.39 $6.26 View $6.16 $6.08 $5.98 $5.89 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: $6.73 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	$6.73 $6.58 $6.45 $6.31 View $6.22 $6.12 $6.02 $5.94	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: $4.30 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 $4.30 $4.20 $4.12 $4.04 View $3.97 $3.92 $3.85 $3.79 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: $28.45 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	$28.45 $22.29 $20.21 $19.67 View $18.85 $18.51 Quote	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: $5.98 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	$5.98 $5.86 $5.73 $5.62 View $5.54 $5.44 $5.37 $5.29	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: $7.59 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	$7.59 $7.41 $7.26 $7.11 View $7.00 $6.90 $6.80 Quote	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: $36.58 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	$36.58 $29.44 $26.67 $25.31 View $24.66 $24.17	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: $8.31 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	$8.31 $8.13 $7.96 $7.79 View $7.67 $7.56 $7.44 Quote	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: $4.08 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 $4.08 $4.00 $3.90 $3.84 View $3.77 $3.71 $3.66 $3.60 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: $2.83 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	$2.83 $2.35 $2.16	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: $1.88 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 $1.88 $1.36 $1.23 $1.09 Reel $0.908 View $1.07 $0.907 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: $1.88 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 $1.88 $1.36 $1.23 $1.09 Reel $0.929 View $1.02 $0.978 $0.934 $0.917 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: $1.16 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 $1.16 $0.811 $0.728 $0.635 Reel $0.528 View $0.592 $0.564 $0.552 $0.521	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: $4.65 125In Stock	Mfr. Part No. MIC38HC43-1YM Mouser Part No 998-MIC38HC43-1YM	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	125In Stock	$4.65 $3.89 $3.54	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: $1.18 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 $1.18 $0.83 $0.744 $0.65 Reel $0.54 View $0.605 $0.578 $0.554 $0.532	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: $1.13 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 $1.13 $0.789 $0.707 $0.617 Reel $0.514 View $0.575 $0.549 $0.537 $0.506	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: $1.88 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 $1.88 $1.36 $1.23 $1.09 Reel $0.926 View $1.02 $0.978 $0.934 $0.913 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: $3.71 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 $3.71 $2.77 $2.53 $2.27 Reel $2.03 View $2.15 $2.09 $1.97 $1.94 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: $1.84 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 $1.84 $1.33 $1.20 $1.06 Reel $0.911 View $0.997 $0.957 $0.928 $0.90	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: $3.54 165In Stock	Mfr. Part No. MIC38C43AYMM Mouser Part No 998-MIC38C43AYMM	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	165In Stock	$3.54 $2.92 $2.67	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: $3.22 64In Stock	Mfr. Part No. MIC38HC43YN Mouser Part No 998-MIC38HC43YN	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	64In Stock	$3.22 $2.67 $2.42	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: $2.12 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 $2.12 $1.55 $1.40 $1.24 Reel $1.07 View $1.17 $1.12 $1.11 $1.06 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: $11.49 214In Stock	Mfr. Part No. UC2823N Mouser Part No 595-UC2823N	Texas Instruments	Switching Controllers High Speed PWM Contr oller	Datasheet	214In Stock	$11.49 $8.91 $8.24 $6.85 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: $5.09 2,988In Stock	Mfr. Part No. NCV97200MW33R2G Mouser Part No 863-NCV97200MW33R2G	onsemi	Switching Controllers AUTOMOTIVE SWITCHER	Datasheet	2,988In Stock	Cut Tape $5.09 $3.79 $3.47 $3.10 View Reel $2.60 $2.94 $2.87 $2.72 $2.64 $2.60	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