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	Packaging
Switching Controllers Automotive 75-V sync hronous buck DC/DC LM5145QRGYRQ1 Texas Instruments 1: 38,27 kr. 39In Stock 3.000Expected 17/06/2027	Mfr. Part No. LM5145QRGYRQ1 Mouser Part No 595-LM5145QRGYRQ1	Texas Instruments	Switching Controllers Automotive 75-V sync hronous buck DC/DC Learn More about Texas Instruments ti lm5145 q1 controllers	Datasheet	39In Stock 3.000Expected 17/06/2027	Cut Tape 38,27 kr. 29,32 kr. 27,08 kr. 22,90 kr. View Reel 19,77 kr. 21,86 kr. 20,66 kr. 19,77 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	100 kHz to 1 MHz	99 %	800 mV to 60 V	30 A	- 40 C	+ 150 C	SMD/SMT	VQFN-20	Reel, Cut Tape, MouseReel
Switching Controllers 3-V to 36-V 4-A lo w -noise synchronous LM61440AANRJRR Texas Instruments 1: 31,26 kr. 53In Stock 9.000On Order	Mfr. Part No. LM61440AANRJRR Mouser Part No 595-LM61440AANRJRR	Texas Instruments	Switching Controllers 3-V to 36-V 4-A lo w -noise synchronous Learn More about Texas Instruments ti lm61440 step down converter	Datasheet	53In Stock 9.000On Order On Order Ship Dates Mfr. No: LM61440AANRJRR Stock: 53 Can Dispatch Immediately On Order: 3.000 Expected 29/07/2027 6.000 Expected 19/08/2027 Factory Lead Time: 26 Weeks	Cut Tape 31,26 kr. 23,72 kr. 21,86 kr. 19,84 kr. View Reel 17,16 kr. 18,95 kr. 18,87 kr. 18,28 kr. 17,16 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	200 kHz to 2.2 MHz	98 %	1 V to 34 V	4 A	- 40 C	+ 150 C	SMD/SMT		Reel, Cut Tape, MouseReel
Switching Controllers Low Input 2.25V-5.5V 300 kHz Frequency A A 595-TPS40000DGQR TPS40000DGQ Texas Instruments 1: 23,42 kr. 199In Stock	Mfr. Part No. TPS40000DGQ Mouser Part No 595-TPS40000DGQ	Texas Instruments	Switching Controllers Low Input 2.25V-5.5V 300 kHz Frequency A A 595-TPS40000DGQR	Datasheet	199In Stock	23,42 kr. 17,46 kr. 15,96 kr. 14,25 kr. View 13,50 kr. 12,61 kr. 12,16 kr. 11,79 kr. 11,64 kr.	Min.: 1 Mult.: 1	Buck	1 Output	350 kHz	97 %	700 mV	8 mA	- 40 C	+ 85 C	SMD/SMT	MSOP-PowerPad-10	Tube
Switching Controllers Enhanced Prod Synch Buck Controller A 59 A 595-TPS40021MPWPREP TPS40021MPWPEP Texas Instruments 1: 112,57 kr. 31In Stock	Mfr. Part No. TPS40021MPWPEP Mouser Part No 595-TPS40021MPWPEP	Texas Instruments	Switching Controllers Enhanced Prod Synch Buck Controller A 59 A 595-TPS40021MPWPREP	Datasheet	31In Stock	112,57 kr. 89,22 kr. 83,40 kr. 76,91 kr. View 73,41 kr. 72,06 kr.	Min.: 1 Mult.: 1	Buck	1 Output	100 kHz to 1 MHz	95 %	1.5 V	20 A	- 55 C	+ 125 C	SMD/SMT	HTSSOP-16	Tube
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 Wide Input Synch Buc k Controller A 595- A 595-TPS40075RHLR TPS40075RHLT Texas Instruments 1: 37,90 kr. 129In Stock	Mfr. Part No. TPS40075RHLT Mouser Part No 595-TPS40075RHLT	Texas Instruments	Switching Controllers Wide Input Synch Buc k Controller A 595- A 595-TPS40075RHLR	Datasheet	129In Stock	Cut Tape 37,90 kr. 28,94 kr. 26,71 kr. 24,02 kr. Reel 23,05 kr. 22,98 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	100 kHz to 1 MHz	95 %	700 mV to 23 V	20 A	- 40 C	+ 85 C	SMD/SMT	VQFN-20	Reel, Cut Tape, MouseReel
Switching Controllers 4 Ch Multiphase Buck DC/DC Controller A A 595-TPS40090PWR TPS40090PW Texas Instruments 1: 52,52 kr. 8In Stock	Mfr. Part No. TPS40090PW Mouser Part No 595-TPS40090PW	Texas Instruments	Switching Controllers 4 Ch Multiphase Buck DC/DC Controller A A 595-TPS40090PWR	Datasheet	8In Stock	52,52 kr. 39,99 kr. 35,51 kr. 33,50 kr. 32,53 kr.	Min.: 1 Mult.: 1	Buck	1 Output	100 kHz to 1 MHz	87.5 %	700 mV to 3.3 V	120 A	- 40 C	+ 85 C	SMD/SMT	TSSOP-24	Tube
Switching Controllers 2-Ph Synch Buck Cntr A 595-TPS40131RHBT A 595-TPS40131RHBT TPS40131RHBR Texas Instruments 1: 25,96 kr. 82In Stock	Mfr. Part No. TPS40131RHBR Mouser Part No 595-TPS40131RHBR	Texas Instruments	Switching Controllers 2-Ph Synch Buck Cntr A 595-TPS40131RHBT A 595-TPS40131RHBT	Datasheet	82In Stock	Cut Tape 25,96 kr. 23,13 kr. 22,08 kr. 19,17 kr. View Reel 17,68 kr. 18,20 kr. 18,13 kr. 17,68 kr. 17,68 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	100 kHz to 1 MHz	87.5 %	700 mV to 5.8 V	50 A	- 40 C	+ 85 C	SMD/SMT	VQFN-32	Reel, Cut Tape, MouseReel
Switching Controllers Low Pin Count Sync B uck DC/DC Cntrlr A A 595-TPS40190DRCR TPS40190DRCT Texas Instruments 1: 25,36 kr. 240In Stock	Mfr. Part No. TPS40190DRCT Mouser Part No 595-TPS40190DRCT	Texas Instruments	Switching Controllers Low Pin Count Sync B uck DC/DC Cntrlr A A 595-TPS40190DRCR	Datasheet	240In Stock	Cut Tape 25,36 kr. 18,87 kr. 17,23 kr. 15,44 kr. Reel 14,40 kr. View 13,95 kr. 13,43 kr. 13,20 kr. 13,06 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	300 kHz	85 %	600 mV to 12.75 V	20 A	- 40 C	+ 85 C	SMD/SMT	VSON-10	Reel, Cut Tape, MouseReel
Switching Controllers 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40192DRCR TPS40192DRCT Texas Instruments 1: 25,14 kr. 242In Stock	Mfr. Part No. TPS40192DRCT Mouser Part No 595-TPS40192DRCT	Texas Instruments	Switching Controllers 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40192DRCR	Datasheet	242In Stock	Cut Tape 25,14 kr. 19,02 kr. 17,46 kr. 15,82 kr. Reel 14,92 kr. View 14,17 kr. 13,58 kr. 13,43 kr. 13,35 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	600 kHz	85 %	591 mV to 14.4 V	20 A	- 40 C	+ 85 C	SMD/SMT	VSON-10	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 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40193DRCR TPS40193DRCT Texas Instruments 1: 25,29 kr. 170In Stock	Mfr. Part No. TPS40193DRCT Mouser Part No 595-TPS40193DRCT	Texas Instruments	Switching Controllers 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40193DRCR	Datasheet	170In Stock	Cut Tape 25,29 kr. 19,10 kr. 17,61 kr. 15,82 kr. Reel 14,99 kr. View 14,92 kr. 14,47 kr. 14,25 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	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-Sync Bu ck DC/DC Cntrlr A 5 A 595-TPS40200DR TPS40200D Texas Instruments 1: 19,62 kr. 30In Stock 2.625Expected 07/06/2027	Mfr. Part No. TPS40200D Mouser Part No 595-TPS40200D	Texas Instruments	Switching Controllers Wide Inp Non-Sync Bu ck DC/DC Cntrlr A 5 A 595-TPS40200DR	Datasheet	30In Stock 2.625Expected 07/06/2027	19,62 kr. 14,70 kr. 11,26 kr. 11,04 kr. 10,29 kr.	Min.: 1 Mult.: 1	Buck	1 Output	35 kHz to 500 kHz	95 %	700 mV to 46 V	3 A	- 40 C	+ 85 C	SMD/SMT	SOIC-8	Tube
Switching Controllers Wide Inp Non-Sync Bu ck DC/DC Cntrlr ALT ALT 595-TPS40200D TPS40200DG4 Texas Instruments 1: 18,65 kr. 274In Stock	Mfr. Part No. TPS40200DG4 Mouser Part No 595-TPS40200DG4	Texas Instruments	Switching Controllers Wide Inp Non-Sync Bu ck DC/DC Cntrlr ALT ALT 595-TPS40200D	Datasheet	274In Stock	18,65 kr. 13,95 kr. 12,76 kr. 11,34 kr. View 9,85 kr. 9,18 kr. 9,03 kr. 8,95 kr.	Min.: 1 Mult.: 1	Buck	1 Output	35 kHz to 500 kHz	95 %	700 mV to 46 V	3 A	- 40 C	+ 85 C	SMD/SMT	SOIC-8	Tube
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 Wide Inp Non-Sync Bu ck DC/DC Cntrlr ALT ALT 595-TPS40200DR TPS40200DRG4 Texas Instruments 1: 15,89 kr. 76In Stock	Mfr. Part No. TPS40200DRG4 Mouser Part No 595-TPS40200DRG4	Texas Instruments	Switching Controllers Wide Inp Non-Sync Bu ck DC/DC Cntrlr ALT ALT 595-TPS40200DR	Datasheet	76In Stock	Cut Tape 15,89 kr. 11,79 kr. 10,74 kr. 9,62 kr. View Reel 7,68 kr. 9,10 kr. 8,80 kr. 8,50 kr. 7,68 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Buck	1 Output	35 kHz to 500 kHz	95 %	700 mV to 46 V	3 A	- 40 C	+ 85 C	SMD/SMT	SOIC-8	Reel, Cut Tape, MouseReel
Switching Controllers 3-V to 20-V 25-A s y nchronous buck cont A 595-TPS40345DRCR TPS40345DRCT Texas Instruments 1: 19,62 kr. 250In Stock	Mfr. Part No. TPS40345DRCT Mouser Part No 595-TPS40345DRCT	Texas Instruments	Switching Controllers 3-V to 20-V 25-A s y nchronous buck cont A 595-TPS40345DRCR Learn More about Texas Instruments ti tps40345 controllers	Datasheet	250In Stock	Cut Tape 19,62 kr. 14,62 kr. 13,43 kr. 12,09 kr. Reel 11,26 kr. View 10,89 kr. 10,44 kr. 10,22 kr. 9,92 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	600 kHz	90 %	600 mV to 18 V	20 A	- 20 C	+ 85 C	SMD/SMT	VSON-10	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