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 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085MME/NOPB LM5085MM/NOPB Texas Instruments 1: 24,10 kr. 5.750In Stock	Mfr. Part No. LM5085MM/NOPB Mouser Part No 926-LM5085MM/NOPB	Texas Instruments	Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085MME/NOPB	Datasheet	5.750In Stock	Cut Tape 24,10 kr. 18,13 kr. 16,71 kr. 14,99 kr. Reel 13,35 kr. View 14,25 kr. 14,10 kr. 12,83 kr. 12,68 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Buck	1 Output	1 MHz	100 %	1.25 V to 75 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers 75V On-Time PFET Buc k Switching Cntlr A A 926-LM5085MM/NOPB LM5085MME/NOPB Texas Instruments 1: 24,10 kr. 1.252In Stock	Mfr. Part No. LM5085MME/NOPB Mouser Part No 926-LM5085MME/NOPB	Texas Instruments	Switching Controllers 75V On-Time PFET Buc k Switching Cntlr A A 926-LM5085MM/NOPB	Datasheet	1.252In Stock	Cut Tape 24,10 kr. 18,13 kr. 16,71 kr. 14,99 kr. Reel 14,55 kr. View 14,02 kr. 13,43 kr. 12,76 kr. 12,61 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	1 MHz	100 %	1.25 V to 75 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085SDE/NOPB LM5085SD/NOPB Texas Instruments 1: 24,10 kr. 2.421In Stock	Mfr. Part No. LM5085SD/NOPB Mouser Part No 926-LM5085SD/NOPB	Texas Instruments	Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085SDE/NOPB	Datasheet	2.421In Stock	Cut Tape 24,10 kr. 18,13 kr. 16,71 kr. 14,99 kr. Reel 13,35 kr. View 14,25 kr. 14,10 kr. 12,83 kr. 12,53 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Buck	1 Output	1 MHz	100 %	1.25 V to 75 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	LLP-8		Reel, Cut Tape, MouseReel
Switching Controllers 75V DC-DC Buck Controller with HSC MIC2104YML-TR Microchip Technology 1: 11,34 kr. 4.966In Stock	Mfr. Part No. MIC2104YML-TR Mouser Part No 998-MIC2104YMLTR	Microchip Technology	Switching Controllers 75V DC-DC Buck Controller with HSC	Datasheet	4.966In Stock	Cut Tape 11,34 kr. 9,62 kr. 9,10 kr. Reel 8,65 kr. MouseReel Available	Min.: 1 Mult.: 1 : 5.000	Buck	1 Output	200 kHz to 600 kHz	85 %	800 mV to 24 V	15 A	- 40 C	+ 125 C	SMD/SMT	MLF-16		Reel, Cut Tape, MouseReel
Switching Controllers Commercial 30-V lo w -power current-mode UCC38C50DR Texas Instruments 1: 8,36 kr. 1.420In Stock	Mfr. Part No. UCC38C50DR Mouser Part No 595-UCC38C50DR	Texas Instruments	Switching Controllers Commercial 30-V lo w -power current-mode Learn More about Texas Instruments ti uccx8c5x uccx8c5x q1 controllers	Datasheet	1.420In Stock	Cut Tape 8,36 kr. 6,01 kr. 5,44 kr. 4,80 kr. Reel 4,01 kr. View 4,51 kr. 4,33 kr. 4,13 kr. 3,82 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Buck, Flyback	1 Output	110 kHz	100 %		200 mA	0 C	+ 85 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers 75V, Dual Phase Advanced COT PWM Multi-Phase Controller MIC2132YML-TR Microchip Technology 1: 18,50 kr. 99In Stock 23.100Expected 25/01/2027	Mfr. Part No. MIC2132YML-TR Mouser Part No 494-MIC2132YML-TR	Microchip Technology	Switching Controllers 75V, Dual Phase Advanced COT PWM Multi-Phase Controller Learn More about Microchip Technology microchip mic2132 controllers	Datasheet	99In Stock 23.100Expected 25/01/2027	Cut Tape 18,50 kr. 15,44 kr. Reel 14,02 kr.	Min.: 1 Mult.: 1 : 3.300	Buck	1 Output	100 kHz to 1 MHz	85 %	600 mV to 28 V	100 mA	- 40 C	+ 125 C	SMD/SMT	VQFN-32		Reel, Cut Tape
Switching Controllers Synchronous Buck PWM Control 600kHz 12ns MCP19035-BAAAE/MF Microchip Technology 1: 13,35 kr. 431In Stock	Mfr. Part No. MCP19035-BAAAE/MF Mouser Part No 579-MCP19035BAAAE/MF	Microchip Technology	Switching Controllers Synchronous Buck PWM Control 600kHz 12ns Learn More about Microchip Technology microchip mcp19035	Datasheet	431In Stock	13,35 kr. 11,12 kr. 10,22 kr.	Min.: 1 Mult.: 1	Buck	1 Output	600 kHz	85 %	5 V	50 mA	- 40 C	+ 125 C	SMD/SMT	DFN-10	AEC-Q100	Tube
Switching Controllers Sync Buck PWM Controller MCP19111-E/MQ Microchip Technology 1: 33,50 kr. 25In Stock	Mfr. Part No. MCP19111-E/MQ Mouser Part No 579-MCP19111-E/MQ	Microchip Technology	Switching Controllers Sync Buck PWM Controller Learn More about Microchip Technology microchip mcp19111	Datasheet	25In Stock	33,50 kr. 27,98 kr. 25,44 kr.	Min.: 1 Mult.: 1	Boost, Buck	1 Output	100 kHz	100 %	500 mV to 3.6 V	30 mA	- 40 C	+ 125 C	SMD/SMT	QFN-28		Tube
Switching Controllers Wide Input Range Syn c Buck Cntlr A 595- A 595-LM5117PSQ/NOPB LM5117PSQE/NOPB Texas Instruments 1: 47,89 kr. 215In Stock	Mfr. Part No. LM5117PSQE/NOPB Mouser Part No 595-LM5117PSQE/NOPB	Texas Instruments	Switching Controllers Wide Input Range Syn c Buck Cntlr A 595- A 595-LM5117PSQ/NOPB	Datasheet	215In Stock	Cut Tape 47,89 kr. 36,93 kr. 34,17 kr. 31,18 kr. Reel 28,87 kr. View 28,42 kr. 27,38 kr. 26,63 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	50 kHz to 750 kHz	98 %	800 mV to 62 V	20 A	- 40 C	+ 125 C	SMD/SMT	WQFN-24		Reel, Cut Tape, MouseReel
Switching Controllers Low Vin Synch Buck D C/DC Controller A 5 A 595-TPS40041DRBT TPS40041DRBR Texas Instruments 1: 13,20 kr. 19In Stock	Mfr. Part No. TPS40041DRBR Mouser Part No 595-TPS40041DRBR	Texas Instruments	Switching Controllers Low Vin Synch Buck D C/DC Controller A 5 A 595-TPS40041DRBT	Datasheet	19In Stock	Cut Tape 13,20 kr. 9,77 kr. 8,88 kr. 7,91 kr. Reel 6,42 kr. View 7,45 kr. 7,18 kr. 6,86 kr. 6,34 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	600 kHz	88 %	600 mV to 4.95 V	15 A	- 40 C	+ 85 C	SMD/SMT	SON-8		Reel, Cut Tape, MouseReel
Switching Controllers Lo Vin Synch Buck DC /DC Cntrlr A 595-TP A 595-TPS40041DRBR TPS40041DRBT Texas Instruments 1: 15,07 kr. 441In Stock	Mfr. Part No. TPS40041DRBT Mouser Part No 595-TPS40041DRBT	Texas Instruments	Switching Controllers Lo Vin Synch Buck DC /DC Cntrlr A 595-TP A 595-TPS40041DRBR	Datasheet	441In Stock	Cut Tape 15,07 kr. 11,26 kr. 10,22 kr. 9,62 kr. Reel 8,28 kr. View 7,91 kr. 7,76 kr. 7,68 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	600 kHz	88 %	600 mV to 4.95 V	15 A	- 40 C	+ 85 C	SMD/SMT	SON-8		Reel, Cut Tape, MouseReel
Switching Controllers Lo Vin Synch Buck DC /DC Cntrlr ALT 595- ALT 595-TPS40041DRBT TPS40041DRBTG4 Texas Instruments 1: 15,14 kr. 225In Stock	Mfr. Part No. TPS40041DRBTG4 Mouser Part No 595-TPS40041DRBTG4	Texas Instruments	Switching Controllers Lo Vin Synch Buck DC /DC Cntrlr ALT 595- ALT 595-TPS40041DRBT	Datasheet	225In Stock	Cut Tape 15,14 kr. 11,19 kr. 10,22 kr. 9,10 kr. Reel 8,58 kr. View 8,36 kr. 8,06 kr. 7,83 kr. 7,53 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	600 kHz	88 %	600 mV to 4.95 V	15 A	- 40 C	+ 85 C	SMD/SMT	SON-8		Reel, Cut Tape, MouseReel
Switching Controllers Low Pin Ct Low Vin S ynch Buck DCDC A 59 A 595-TPS40042DRCR TPS40042DRCT Texas Instruments 1: 19,32 kr. 30In Stock	Mfr. Part No. TPS40042DRCT Mouser Part No 595-TPS40042DRCT	Texas Instruments	Switching Controllers Low Pin Ct Low Vin S ynch Buck DCDC A 59 A 595-TPS40042DRCR	Datasheet	30In Stock	Cut Tape 19,32 kr. 14,47 kr. 13,20 kr. 11,86 kr. Reel 11,19 kr. View 10,74 kr. 10,07 kr. 9,85 kr. 9,77 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	600 kHz	95 %	600 mV		- 40 C	+ 85 C	SMD/SMT	VSON-10		Reel, Cut Tape, MouseReel
Switching Controllers Wide Input Synch Buc k Controller A 595- A 595-TPS40060PWPR TPS40060PWP Texas Instruments 1: 46,92 kr. 264In Stock	Mfr. Part No. TPS40060PWP Mouser Part No 595-TPS40060PWP	Texas Instruments	Switching Controllers Wide Input Synch Buc k Controller A 595- A 595-TPS40060PWPR	Datasheet	264In Stock	46,92 kr. 37,37 kr. 35,06 kr. 34,99 kr. View 32,45 kr. 29,62 kr. 28,87 kr.	Min.: 1 Mult.: 1	Buck	1 Output	100 kHz to 1 MHz	98 %	700 mV to 45 V	10 A	- 40 C	+ 85 C	SMD/SMT	HTSSOP-16		Tube
Switching Controllers Wide Input Sync Buck Cntrlr source/sink A 595-TPS40061PWPR TPS40061PWP Texas Instruments 1: 45,66 kr. 107In Stock	Mfr. Part No. TPS40061PWP Mouser Part No 595-TPS40061PWP	Texas Instruments	Switching Controllers Wide Input Sync Buck Cntrlr source/sink A 595-TPS40061PWPR	Datasheet	107In Stock	45,66 kr. 34,99 kr. 32,30 kr. 29,39 kr. View 27,98 kr. 27,15 kr. 26,78 kr. 26,48 kr.	Min.: 1 Mult.: 1	Buck	1 Output	100 kHz to 1 MHz	98 %	700 mV to 45 V	10 A	- 40 C	+ 85 C	SMD/SMT	HTSSOP-16		Tube
Switching Controllers AC 4.5-60V Wide-Inp Sync PWM Buck Cntrlr TPS40170QRGYRQ1 Texas Instruments 1: 52,44 kr. 27In Stock 6.000Expected 31/12/2026	Mfr. Part No. TPS40170QRGYRQ1 Mouser Part No 595-TPS40170QRGYRQ1	Texas Instruments	Switching Controllers AC 4.5-60V Wide-Inp Sync PWM Buck Cntrlr	Datasheet	27In Stock 6.000Expected 31/12/2026	Cut Tape 52,44 kr. 41,33 kr. 38,49 kr. 35,44 kr. 35,36 kr. Reel 31,63 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	100 kHz to 1 MHz	95 %	600 mV to 57 V	20 A	- 40 C	+ 125 C	SMD/SMT	VQFN-20	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40193DRCT TPS40193DRCR Texas Instruments 1: 21,63 kr. 598In Stock	Mfr. Part No. TPS40193DRCR Mouser Part No 595-TPS40193DRCR	Texas Instruments	Switching Controllers 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40193DRCT	Datasheet	598In Stock	Cut Tape 21,63 kr. 16,26 kr. 14,92 kr. 13,50 kr. Reel 11,49 kr. View 12,76 kr. 12,31 kr. 11,94 kr. 11,34 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	300 kHz	85 %	591 mV to 14.4 V	20 A	- 40 C	+ 85 C	SMD/SMT	VSON-10		Reel, Cut Tape, MouseReel
Switching Controllers Wide Inp Non-Synch B uck DC/DC Cntrlr A A 595-TPS40200DRBR TPS40200DRBT Texas Instruments 1: 18,58 kr. 153In Stock	Mfr. Part No. TPS40200DRBT Mouser Part No 595-TPS40200DRBT	Texas Instruments	Switching Controllers Wide Inp Non-Synch B uck DC/DC Cntrlr A A 595-TPS40200DRBR	Datasheet	153In Stock	Cut Tape 18,58 kr. 13,88 kr. 12,68 kr. 11,41 kr. Reel 10,74 kr. View 10,15 kr. 9,70 kr. 9,55 kr. 9,40 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	35 kHz to 500 kHz	95 %	700 mV to 46 V	3 A	- 40 C	+ 85 C	SMD/SMT	SON-8		Reel, Cut Tape, MouseReel
Switching Controllers Dual Output 2Phase S ynch Buck Cntrlr A A 595-TPS5120DBTR TPS5120DBT Texas Instruments 1: 79,08 kr. 144In Stock	Mfr. Part No. TPS5120DBT Mouser Part No 595-TPS5120DBT	Texas Instruments	Switching Controllers Dual Output 2Phase S ynch Buck Cntrlr A A 595-TPS5120DBTR	Datasheet	144In Stock	79,08 kr. 62,14 kr. 54,76 kr. 52,67 kr. View 50,58 kr. 49,46 kr. 48,42 kr. Quote	Min.: 1 Mult.: 1	Buck	2 Output	100 kHz to 500 kHz	83 %	900 mV to 26 V	20 A	- 40 C	+ 85 C	SMD/SMT	TSSOP-30		Tube
Switching Controllers Fixed-Freq Notebook Sys Pwr Controller A A 595-TPS51220ARTVR TPS51220ARTVT Texas Instruments 1: 31,85 kr. 157In Stock	Mfr. Part No. TPS51220ARTVT Mouser Part No 595-TPS51220ARTVT	Texas Instruments	Switching Controllers Fixed-Freq Notebook Sys Pwr Controller A A 595-TPS51220ARTVR	Datasheet	157In Stock	Cut Tape 31,85 kr. 24,32 kr. 22,38 kr. 20,37 kr. Reel 19,25 kr. View 18,65 kr. 18,58 kr. 18,43 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	2 Output	200 kHz to 1 MHz	99 %	1 V to 12 V	20 A	- 40 C	+ 85 C	SMD/SMT	WQFN-32		Reel, Cut Tape, MouseReel
Switching Controllers Fixed-Freq Notebook Sys Pwr Cntrlr A 595 A 595-TPS51222RTVR TPS51222RTVT Texas Instruments 1: 72,51 kr. 138In Stock	Mfr. Part No. TPS51222RTVT Mouser Part No 595-TPS51222RTVT	Texas Instruments	Switching Controllers Fixed-Freq Notebook Sys Pwr Cntrlr A 595 A 595-TPS51222RTVR	Datasheet	138In Stock	Cut Tape 72,51 kr. 56,62 kr. 52,59 kr. 48,27 kr. Reel 45,80 kr. View 44,91 kr. 43,86 kr. Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	2 Output	200 kHz to 1 MHz	99 %	1 V to 12 V	20 A	- 40 C	+ 85 C	SMD/SMT	WQFN-32		Reel, Cut Tape, MouseReel
Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64200DBVR TPS64200DBVT Texas Instruments 1: 13,50 kr. 110In Stock	Mfr. Part No. TPS64200DBVT Mouser Part No 595-TPS64200DBVT	Texas Instruments	Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64200DBVR	Datasheet	110In Stock	Cut Tape 13,50 kr. 10,00 kr. 9,10 kr. 8,13 kr. Reel 7,25 kr. View 6,93 kr. 6,74 kr. 6,61 kr. 6,48 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	350 kHz	100 %	1.2 V to 6.5 V	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-23-6		Reel, Cut Tape, MouseReel
Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64201DBVR TPS64201DBVT Texas Instruments 1: 13,20 kr. 238In Stock	Mfr. Part No. TPS64201DBVT Mouser Part No 595-TPS64201DBVT	Texas Instruments	Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64201DBVR	Datasheet	238In Stock	Cut Tape 13,20 kr. 9,85 kr. 8,95 kr. 7,98 kr. Reel 7,45 kr. View 7,31 kr. 7,12 kr. 6,99 kr. 6,74 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	450 kHz	100 %	1.2 V to 6.5 V	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-23-6		Reel, Cut Tape, MouseReel
Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64203DBVR TPS64203DBVT Texas Instruments 1: 12,61 kr. 704In Stock	Mfr. Part No. TPS64203DBVT Mouser Part No 595-TPS64203DBVT	Texas Instruments	Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64203DBVR	Datasheet	704In Stock	Cut Tape 12,61 kr. 9,62 kr. 8,95 kr. 7,98 kr. Reel 7,45 kr. View 6,80 kr. 6,74 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	800 kHz	100 %	1.2 V to 6.5 V	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-23-6		Reel, Cut Tape, MouseReel
Switching Controllers High Speed PWM Contr oller A 595-UC3823D A 595-UC3823DWTR UC3823DW Texas Instruments 1: 50,80 kr. 102In Stock	Mfr. Part No. UC3823DW Mouser Part No 595-UC3823DW	Texas Instruments	Switching Controllers High Speed PWM Contr oller A 595-UC3823D A 595-UC3823DWTR	Datasheet	102In Stock	50,80 kr. 39,17 kr. 36,33 kr. 33,05 kr. View 31,41 kr. 30,51 kr. 29,09 kr.	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	1 MHz	100 %	5.1 V	2 A	0 C	+ 70 C	SMD/SMT	SOIC-16		Tube