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	Input Voltage	Output Voltage	Output Current	Minimum Operating Temperature	Maximum Operating Temperature	Mounting Style	Package/Case	Qualification	Packaging
Switching Controllers USB Std Power Range W-QFN4040-24(Type A1) T&R 3K APK43070DKZ-13-FA01 Diodes Incorporated 1: 9,25 kr. 2.047In Stock New Product	Mfr. Part No. APK43070DKZ-13-FA01 Mouser Part No 621-PK43070DKZ13FA01 New Product	Diodes Incorporated	Switching Controllers USB Std Power Range W-QFN4040-24(Type A1) T&R 3K Learn More about Diodes Incorporated diodesinc apk43070 synchronous buck controller	Datasheet	2.047In Stock	Cut Tape 9,25 kr. 6,67 kr. 5,94 kr. 5,33 kr. Reel 5,33 kr. MouseReel Available	Min.: 1 Mult.: 1 Max.: 214 : 3.000	Buck	1 Output	440 kHz	95 %	4 V to 36 V	1 V to 28 V	3 A	- 40 C	+ 150 C	SMD/SMT	W-QFN4040-24		Reel, Cut Tape, MouseReel
Switching Controllers Automotive 42-V sync hronous buck DC/DC LM25148BQRGYRQ1 Texas Instruments 1: 25,96 kr. 5.960In Stock	Mfr. Part No. LM25148BQRGYRQ1 Mouser Part No 595-LM25148BQRGYRQ1	Texas Instruments	Switching Controllers Automotive 42-V sync hronous buck DC/DC Learn More about Texas Instruments ti lm25148 synchronous buck dc dc controller	Datasheet	5.960In Stock	Cut Tape 25,96 kr. 19,62 kr. 18,13 kr. 16,26 kr. Reel 14,40 kr. View 15,44 kr. 15,37 kr. 14,47 kr. 13,95 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	2.2 MHz	100 %	3.5 V to 42 V	800 mV to 36 V		- 40 C	+ 150 C	SMD/SMT	VQFN-24		Reel, Cut Tape, MouseReel
Switching Controllers 80-V synchronous buc k DC/DC controller LM5149RGYR Texas Instruments 1: 32,75 kr. 2.723In Stock	Mfr. Part No. LM5149RGYR Mouser Part No 595-LM5149RGYR	Texas Instruments	Switching Controllers 80-V synchronous buc k DC/DC controller Learn More about Texas Instruments ti lm5149 q1 buck dc dc controller	Datasheet	2.723In Stock	Cut Tape 32,75 kr. 24,99 kr. 23,05 kr. 20,89 kr. View Reel 18,58 kr. 19,92 kr. 19,25 kr. 19,02 kr. 18,58 kr. Quote MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	2.2 MHz	100 %		800 mV to 55 V	20 A	- 40 C	+ 150 C	SMD/SMT	VQFN-24		Reel, Cut Tape, MouseReel
Switching Controllers Automotive 30-V lo w -power current-mode UCC28C50QDRQ1 Texas Instruments 1: 18,13 kr. 2.444In Stock	Mfr. Part No. UCC28C50QDRQ1 Mouser Part No 595-UCC28C50QDRQ1	Texas Instruments	Switching Controllers Automotive 30-V lo w -power current-mode Learn More about Texas Instruments ti uccx8c5x uccx8c5x q1 controllers	Datasheet	2.444In Stock	Cut Tape 18,13 kr. 13,50 kr. 12,38 kr. 11,19 kr. Reel 9,33 kr. View 10,52 kr. 10,29 kr. 10,00 kr. 9,18 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Buck, Flyback	1 Output	1 MHz	100 %		15 V	20 mA	- 40 C	+ 125 C	SMD/SMT			Reel, Cut Tape, MouseReel
Switching Controllers Automotive 30-V lo w -power current-mode UCC28C56HQDRQ1 Texas Instruments 1: 16,19 kr. 1.989In Stock	Mfr. Part No. UCC28C56HQDRQ1 Mouser Part No 595-UCC28C56HQDRQ1	Texas Instruments	Switching Controllers Automotive 30-V lo w -power current-mode Learn More about Texas Instruments ti uccx8c5x uccx8c5x q1 controllers	Datasheet	1.989In Stock	Cut Tape 16,19 kr. 12,01 kr. 10,97 kr. 9,85 kr. Reel 8,28 kr. View 9,33 kr. 8,95 kr. 8,65 kr. 8,06 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Buck, Flyback	1 Output	1 MHz	100 %		15 V	20 mA	- 40 C	+ 125 C	SMD/SMT			Reel, Cut Tape, MouseReel
Switching Controllers Automotive 30-V lo w -power current-mode UCC28C58QDRQ1 Texas Instruments 1: 16,19 kr. 1.965In Stock	Mfr. Part No. UCC28C58QDRQ1 Mouser Part No 595-UCC28C58QDRQ1	Texas Instruments	Switching Controllers Automotive 30-V lo w -power current-mode Learn More about Texas Instruments ti uccx8c5x uccx8c5x q1 controllers	Datasheet	1.965In Stock	Cut Tape 16,19 kr. 12,01 kr. 10,97 kr. 9,85 kr. Reel 8,28 kr. View 9,33 kr. 8,95 kr. 8,65 kr. 8,06 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Buck, Flyback	1 Output	1 MHz	100 %		15 V	20 mA	- 40 C	+ 125 C	SMD/SMT			Reel, Cut Tape, MouseReel
Switching Controllers Wide In Non-Synch Bu ck DC/DC Cntrlr A 5 A 595-TPS40200HDR TPS40200HD Texas Instruments 1: 943,76 kr. 821In Stock	Mfr. Part No. TPS40200HD Mouser Part No 595-TPS40200HD	Texas Instruments	Switching Controllers Wide In Non-Synch Bu ck DC/DC Cntrlr A 5 A 595-TPS40200HDR	Datasheet	821In Stock	943,76 kr. 836,71 kr.	Min.: 1 Mult.: 1	Buck	1 Output	35 kHz to 500 kHz	100 %		700 mV to 46 V	3 A	- 55 C	+ 210 C	SMD/SMT	SOIC-8		Tube
Switching Controllers Commercial 30-V lo w -power current-mode UCC38C52DR Texas Instruments 1: 8,36 kr. 2.460In Stock	Mfr. Part No. UCC38C52DR Mouser Part No 595-UCC38C52DR	Texas Instruments	Switching Controllers Commercial 30-V lo w -power current-mode Learn More about Texas Instruments ti uccx8c5x uccx8c5x q1 controllers	Datasheet	2.460In Stock	Cut Tape 8,36 kr. 6,01 kr. 5,44 kr. 4,80 kr. View Reel 3,69 kr. 4,51 kr. 4,33 kr. 3,69 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 Wide Input Range Syn Buck Controller A 5 A 595-LM25141RGER LM25141RGET Texas Instruments 1: 40,51 kr. 738In Stock	Mfr. Part No. LM25141RGET Mouser Part No 595-LM25141RGET	Texas Instruments	Switching Controllers Wide Input Range Syn Buck Controller A 5 A 595-LM25141RGER Learn More about Texas Instruments ti lm25141 controller	Datasheet	738In Stock	Cut Tape 40,51 kr. 31,03 kr. 28,65 kr. 26,11 kr. Reel 25,21 kr. 24,92 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	440 kHz, 2.2 MHz	99 %		3.3 V, 5 V, 1.5 V to 15 V	20 A	- 40 C	+ 125 C	SMD/SMT	VQFN-24		Reel, Cut Tape, MouseReel
Switching Controllers Wide Input Range Syn c Buck Cntlr A 595- A 595-LM5117PSQE/NOPB LM5117PSQ/NOPB Texas Instruments 1: 47,89 kr. 813In Stock	Mfr. Part No. LM5117PSQ/NOPB Mouser Part No 595-LM5117PSQ/NOPB	Texas Instruments	Switching Controllers Wide Input Range Syn c Buck Cntlr A 595- A 595-LM5117PSQE/NOPB	Datasheet	813In Stock	Cut Tape 47,89 kr. 36,93 kr. 34,17 kr. 31,18 kr. Reel 27,98 kr. View 28,94 kr. 26,63 kr. Quote MouseReel Available	Min.: 1 Mult.: 1 : 1.000	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 Wide Input Freq Sync h Buck Cntrlr A 595 A 595-TPS40060PWP TPS40060PWPR Texas Instruments 1: 45,58 kr. 1.409In Stock	Mfr. Part No. TPS40060PWPR Mouser Part No 595-TPS40060PWPR	Texas Instruments	Switching Controllers Wide Input Freq Sync h Buck Cntrlr A 595 A 595-TPS40060PWP	Datasheet	1.409In Stock	Cut Tape 45,58 kr. 34,99 kr. 32,30 kr. 29,39 kr. View Reel 26,48 kr. 27,98 kr. 27,15 kr. 26,78 kr. 26,48 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.000	Buck	1 Output	100 kHz to 1 MHz	98 %		700 mV to 45 V	10 A	- 40 C	+ 85 C	SMD/SMT	HTSSOP-16		Reel, Cut Tape, MouseReel
Switching Controllers 4.5-60V Wide-Inp Syn PWM Buck Controller A 595-TPS40170RGYT TPS40170RGYR Texas Instruments 1: 49,91 kr. 394In Stock 3.000Expected 19/02/2027	Mfr. Part No. TPS40170RGYR Mouser Part No 595-TPS40170RGYR	Texas Instruments	Switching Controllers 4.5-60V Wide-Inp Syn PWM Buck Controller A 595-TPS40170RGYT	Datasheet	394In Stock 3.000Expected 19/02/2027	Cut Tape 49,91 kr. 38,49 kr. 35,66 kr. 32,53 kr. 31,11 kr. Reel 27,75 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		Reel, Cut Tape, MouseReel
Switching Controllers 4.5-60V Wide-Inp Syn PWM Buck Controller A 595-TPS40170RGYR TPS40170RGYT Texas Instruments 1: 58,41 kr. 1.007In Stock	Mfr. Part No. TPS40170RGYT Mouser Part No 595-TPS40170RGYT	Texas Instruments	Switching Controllers 4.5-60V Wide-Inp Syn PWM Buck Controller A 595-TPS40170RGYR	Datasheet	1.007In Stock	Cut Tape 58,41 kr. 45,43 kr. 42,22 kr. 38,64 kr. Reel 37,67 kr. View 36,03 kr. 35,14 kr. 33,20 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	100 kHz to 1 MHz	95 %		600 mV to 57 V	20 A	- 40 C	+ 125 C	SMD/SMT	VQFN-20		Reel, Cut Tape, MouseReel
Switching Controllers Low Pin Count Sync B uck DC/DC Cntrlr A A 595-TPS40190DRCT TPS40190DRCR Texas Instruments 1: 15,52 kr. 10.158In Stock	Mfr. Part No. TPS40190DRCR Mouser Part No 595-TPS40190DRCR	Texas Instruments	Switching Controllers Low Pin Count Sync B uck DC/DC Cntrlr A A 595-TPS40190DRCT	Datasheet	10.158In Stock	Cut Tape 15,52 kr. 11,56 kr. 10,52 kr. 9,40 kr. View Reel 8,21 kr. 8,95 kr. 8,65 kr. 8,36 kr. 8,21 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	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 3.0-20V PMBus Sync B uck Controller A 59 A 595-TPS40400RHLT TPS40400RHLR Texas Instruments 1: 33,79 kr. 1.681In Stock	Mfr. Part No. TPS40400RHLR Mouser Part No 595-TPS40400RHLR	Texas Instruments	Switching Controllers 3.0-20V PMBus Sync B uck Controller A 59 A 595-TPS40400RHLT	Datasheet	1.681In Stock	Cut Tape 33,79 kr. 25,74 kr. 23,72 kr. 21,48 kr. 21,11 kr. Reel 17,98 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	200 kHz to 2 MHz	90 %		600 mV	20 A	- 40 C	+ 125 C	SMD/SMT	VQFN-24		Reel, Cut Tape, MouseReel
Switching Controllers Auto Cat Tr Synch Bu ck Controller TPS5130QPTRQ1 Texas Instruments 1: 75,20 kr. 593In Stock	Mfr. Part No. TPS5130QPTRQ1 Mouser Part No 595-TPS5130QPTRQ1	Texas Instruments	Switching Controllers Auto Cat Tr Synch Bu ck Controller	Datasheet	593In Stock	Cut Tape 75,20 kr. 58,86 kr. 54,76 kr. 50,28 kr. View Reel 47,45 kr. 49,83 kr. 47,45 kr. 47,45 kr. Quote MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Buck	4 Output	50 kHz to 500 kHz	97 %		900 mV to 8.5 V	15 A	- 40 C	+ 125 C	SMD/SMT	LQFP-48	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers Sgl Sync SD Cntrlr A 595-TPS53014DGS A 5 A 595-TPS53014DGS TPS53014DGSR Texas Instruments 1: 18,05 kr. 1.848In Stock	Mfr. Part No. TPS53014DGSR Mouser Part No 595-TPS53014DGSR	Texas Instruments	Switching Controllers Sgl Sync SD Cntrlr A 595-TPS53014DGS A 5 A 595-TPS53014DGS	Datasheet	1.848In Stock	Cut Tape 18,05 kr. 13,50 kr. 12,31 kr. 11,12 kr. View Reel 9,40 kr. 10,44 kr. 10,15 kr. 9,85 kr. 9,40 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Buck	1 Output	500 kHz	83 %		760 mV to 7 V	25 A	- 40 C	+ 85 C	SMD/SMT	MSOP-10		Reel, Cut Tape, MouseReel
Switching Controllers Current Mode UC3842AN Texas Instruments 1: 12,23 kr. 3.248In Stock	Mfr. Part No. UC3842AN Mouser Part No 595-UC3842AN	Texas Instruments	Switching Controllers Current Mode	Datasheet	3.248In Stock	12,23 kr. 9,03 kr. 7,61 kr. 7,25 kr. View 6,86 kr. 6,61 kr. 6,40 kr. 6,30 kr. 5,96 kr.	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	500 kHz	100 %		5 V	200 mA	0 C	+ 70 C	Through Hole	PDIP-8		Tube
Switching Controllers Current-Mode PWM Con troller A 595-UC384 A 595-UC3843D8 UC3843D8TR Texas Instruments 1: 6,48 kr. 4.039In Stock	Mfr. Part No. UC3843D8TR Mouser Part No 595-UC3843D8TR	Texas Instruments	Switching Controllers Current-Mode PWM Con troller A 595-UC384 A 595-UC3843D8	Datasheet	4.039In Stock	Cut Tape 6,48 kr. 4,51 kr. 4,06 kr. 3,54 kr. Reel 2,89 kr. View 3,29 kr. 3,14 kr. 3,03 kr. 2,81 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Boost, Buck, Flyback, Forward	1 Output	500 kHz	100 %		5 V	200 mA	0 C	+ 70 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers Low Power Economy Bi CMOS Current Mode A A 595-UCC3813D-2 UCC3813DTR-2 Texas Instruments 1: 14,17 kr. 2.812In Stock	Mfr. Part No. UCC3813DTR-2 Mouser Part No 595-UCC3813DTR-2	Texas Instruments	Switching Controllers Low Power Economy Bi CMOS Current Mode A A 595-UCC3813D-2	Datasheet	2.812In Stock	Cut Tape 14,17 kr. 10,52 kr. 9,55 kr. 8,58 kr. Reel 7,45 kr. View 8,06 kr. 7,83 kr. 7,53 kr. 7,06 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Boost, Buck, Flyback, Forward	1 Output	1 MHz	100 %			1 A	0 C	+ 70 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40DGK UCC38C40DGKR Texas Instruments 1: 22,45 kr. 1.320In Stock	Mfr. Part No. UCC38C40DGKR Mouser Part No 595-UCC38C40DGKR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40DGK Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	1.320In Stock	Cut Tape 22,45 kr. 16,71 kr. 15,29 kr. 13,65 kr. Reel 11,71 kr. View 12,98 kr. 12,61 kr. 12,01 kr. 11,41 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Boost, Buck, Flyback, Forward	1 Output	1 MHz	100 %		18 V	1 A	0 C	+ 70 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers Two-Phase Sync SD Sw itching Cntlr A 926 A 926-LM2642MTC/NOPB LM2642MTCX/NOPB Texas Instruments 1: 26,18 kr. 1.978In Stock	Mfr. Part No. LM2642MTCX/NOPB Mouser Part No 926-LM2642MTCX/NOPB	Texas Instruments	Switching Controllers Two-Phase Sync SD Sw itching Cntlr A 926 A 926-LM2642MTC/NOPB	Datasheet	1.978In Stock	Cut Tape 26,18 kr. 19,84 kr. 18,20 kr. 16,49 kr. View Reel 13,88 kr. 15,67 kr. 15,52 kr. 14,62 kr. 13,88 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Buck	2 Output	60 kHz	98 %		1.3 V to 30 V	6 A	- 40 C	+ 125 C	SMD/SMT	TSSOP-28		Reel, Cut Tape, MouseReel
Switching Controllers 3-V to 20-V voltage mode synchronous bu A 926-LM27402SQX/NOPB LM27402SQ/NOPB Texas Instruments 1: 28,27 kr. 989In Stock	Mfr. Part No. LM27402SQ/NOPB Mouser Part No 926-LM27402SQ/NOPB	Texas Instruments	Switching Controllers 3-V to 20-V voltage mode synchronous bu A 926-LM27402SQX/NOPB	Datasheet	989In Stock	Cut Tape 28,27 kr. 21,34 kr. 19,55 kr. 17,68 kr. Reel 15,67 kr. View 16,71 kr. 16,64 kr. 15,29 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Buck	1 Output	200 kHz to 1.2 MHz	95 %		600 mV to 18.6 V	30 A	- 40 C	+ 125 C	SMD/SMT	WQFN-16		Reel, Cut Tape, MouseReel
Switching Controllers HYSTERETIC PFET BUCK CONTROLLER A 926-LM A 926-LM3489MMX/NOPB LM3489MM/NOPB Texas Instruments 1: 12,23 kr. 3.807In Stock	Mfr. Part No. LM3489MM/NOPB Mouser Part No 926-LM3489MM/NOPB	Texas Instruments	Switching Controllers HYSTERETIC PFET BUCK CONTROLLER A 926-LM A 926-LM3489MMX/NOPB	Datasheet	3.807In Stock	Cut Tape 12,23 kr. 9,40 kr. 8,65 kr. 7,91 kr. Reel 6,99 kr. View 7,53 kr. 7,25 kr. 6,74 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Buck	1 Output	1.4 MHz	100 %		1.239 V to 35 V	4 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers Wide Input Range Syn c Buck Cntlr A 595- A 595-LM5117PMHE/NOPB LM5117PMH/NOPB Texas Instruments 1: 47,89 kr. 734In Stock	Mfr. Part No. LM5117PMH/NOPB Mouser Part No 926-LM5117PMH/NOPB	Texas Instruments	Switching Controllers Wide Input Range Syn c Buck Cntlr A 595- A 595-LM5117PMHE/NOPB	Datasheet	734In Stock	47,89 kr. 36,93 kr. 31,78 kr. 29,77 kr. View 28,27 kr. 27,53 kr. 27,30 kr. 26,71 kr.	Min.: 1 Mult.: 1	Buck	1 Output	50 kHz to 750 kHz	98 %		800 mV to 62 V	20 A	- 40 C	+ 125 C	SMD/SMT	HTSSOP-20		Tube