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 150V Low IQ Step-Dwn DC/DC Ctlr LTC3894EFE#TRPBF Analog Devices 1: 33,27 kr. 719In Stock	Mfr. Part No. LTC3894EFE#TRPBF Mouser Part No 584-LTC3894EFE#TRPBF	Analog Devices	Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr Learn More about Analog Devices adi ltc389x controllers	Datasheet	719In Stock	Cut Tape 33,27 kr. 32,60 kr. 32,53 kr. 32,53 kr. MouseReel Available	Min.: 1 Mult.: 1	Buck	1 Output	50 kHz to 850 kHz	100 %		800 mV to 60 V		- 40 C	+ 125 C	SMD/SMT	TSSOP-20-16		Reel, Cut Tape, MouseReel
Switching Controllers 2-Phase Sync Boost CTL, 40V, 3MHz LTC7806RUFDM#PBF Analog Devices 1: 73,03 kr. 525In Stock	Mfr. Part No. LTC7806RUFDM#PBF Mouser Part No 584-LTC7806RUFDM#PBF	Analog Devices	Switching Controllers 2-Phase Sync Boost CTL, 40V, 3MHz Learn More about Analog Devices adi ltc7806 synchronous boost controllers	Datasheet	525In Stock	73,03 kr. 56,99 kr. 52,97 kr. 48,56 kr. View 46,03 kr. 45,13 kr. 41,33 kr. Quote	Min.: 1 Mult.: 1	Boost, Buck	1 Output	3 MHz	100 %		40 V		- 40 C	+ 150 C	SMD/SMT	QFN-28		Tube
Switching Controllers 5V/3.3V or Adjustable, 100 Duty Cycle, MAX1627ESA+ Analog Devices / Maxim Integrated 1: 37,23 kr. 510In Stock	Mfr. Part No. MAX1627ESA+ Mouser Part No 700-MAX1627ESA	Analog Devices / Maxim Integrated	Switching Controllers 5V/3.3V or Adjustable, 100 Duty Cycle,	Datasheet	510In Stock	37,23 kr. 28,35 kr. 26,18 kr. 22,23 kr. View 21,78 kr. 21,48 kr. 21,26 kr.	Min.: 1 Mult.: 1	Buck	1 Output	300 kHz	100 %		3.3 V to 5 V	3 A	- 40 C	+ 85 C	SMD/SMT	SOIC-Narrow-8		Tube
Switching Controllers Dual-Output Step-Down DC-DC Converter fo MAX1775EEE+ Analog Devices / Maxim Integrated 1: 46,92 kr. 430In Stock	Mfr. Part No. MAX1775EEE+ Mouser Part No 700-MAX1775EEE	Analog Devices / Maxim Integrated	Switching Controllers Dual-Output Step-Down DC-DC Converter fo	Datasheet	430In Stock	46,92 kr. 45,88 kr. 45,66 kr.	Min.: 1 Mult.: 1	Buck	2 Output	1.25 MHz	100 %		500 mV to 5.5 V	2 A	- 40 C	+ 85 C	SMD/SMT	QSOP-16		Tube
Switching Controllers Step-Down Controllers with Synchronous R MAX797ESE+ Analog Devices / Maxim Integrated 1: 137,71 kr. 162In Stock	Mfr. Part No. MAX797ESE+ Mouser Part No 700-MAX797ESE	Analog Devices / Maxim Integrated	Switching Controllers Step-Down Controllers with Synchronous R	Datasheet	162In Stock	137,71 kr. 111,83 kr. 95,04 kr. 94,15 kr. View 89,74 kr. 88,18 kr. Quote	Min.: 1 Mult.: 1	Buck	1 Output	300 kHz	96 %		2.5 V to 6 V	50 mA	- 40 C	+ 85 C	SMD/SMT	SOIC-Narrow-16		Tube
Switching Controllers Automotive 42-V sync hronous buck DC/DC LM25148QRGYRQ1 Texas Instruments 1: 25,96 kr. 64In Stock 27.000On Order	Mfr. Part No. LM25148QRGYRQ1 Mouser Part No 595-LM25148QRGYRQ1	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	64In Stock 27.000On Order On Order Ship Dates Mfr. No: LM25148QRGYRQ1 Stock: 64 Can Dispatch Immediately On Order: 6.000 Expected 11/12/2026 9.000 Expected 25/03/2027 12.000 Expected 01/04/2027 Factory Lead Time: 20 Weeks	Cut Tape 25,96 kr. 19,62 kr. 18,13 kr. 16,26 kr. View Reel 13,95 kr. 15,44 kr. 15,37 kr. 14,92 kr. 13,95 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	2.2 MHz	100 %		800 mV to 36 V	20 A	- 40 C	+ 150 C	SMD/SMT	VQFN-24		Reel, Cut Tape, MouseReel
Switching Controllers 3.5-V to 80-V curre nt mode synchronous LM5148RGYR Texas Instruments 1: 15,67 kr. 105In Stock 15.000Expected 08/03/2027	Mfr. Part No. LM5148RGYR Mouser Part No 595-LM5148RGYR	Texas Instruments	Switching Controllers 3.5-V to 80-V curre nt mode synchronous Learn More about Texas Instruments ti lm5148 buck dc dc controller	Datasheet	105In Stock 15.000Expected 08/03/2027	Cut Tape 15,67 kr. 11,64 kr. 10,59 kr. 9,47 kr. Reel 8,06 kr. View 8,95 kr. 8,65 kr. 8,21 kr. 7,98 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	2.2 MHz	100 %		800 mV to 55 V		- 40 C	+ 125 C	SMD/SMT	VQFN-24		Reel, Cut Tape, MouseReel
Switching Controllers Current-mode flyback controller with sec UCC287501DBVR Texas Instruments 1: 2,44 kr. 2.789In Stock	Mfr. Part No. UCC287501DBVR Mouser Part No 595-UCC287501DBVR	Texas Instruments	Switching Controllers Current-mode flyback controller with sec Learn More about Texas Instruments ti ucc28750 current mode flyback controller	Datasheet	2.789In Stock	Cut Tape 2,44 kr. 1,69 kr. 1,51 kr. 1,31 kr. Reel 1,01 kr. View 1,20 kr. 1,14 kr. 1,09 kr. 0,992 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	65 kHz	80 %	10 V to 26 V			- 40 C	+ 125 C	SMD/SMT	SOT-23-6		Reel, Cut Tape, MouseReel
Switching Controllers Current-mode flyback controller with sec UCC287503DBVR Texas Instruments 1: 2,44 kr. 2.954In Stock	Mfr. Part No. UCC287503DBVR Mouser Part No 595-UCC287503DBVR	Texas Instruments	Switching Controllers Current-mode flyback controller with sec Learn More about Texas Instruments ti ucc28750 current mode flyback controller	Datasheet	2.954In Stock	Cut Tape 2,44 kr. 1,69 kr. 1,51 kr. 1,31 kr. Reel 1,03 kr. View 1,20 kr. 1,14 kr. 1,09 kr. 0,992 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	65 kHz	80 %	10 V to 26 V			- 40 C	+ 125 C	SMD/SMT	SOT-23-6		Reel, Cut Tape, MouseReel
Switching Controllers Current-mode flyback controller with sec UCC287504DBVR Texas Instruments 1: 2,44 kr. 2.858In Stock	Mfr. Part No. UCC287504DBVR Mouser Part No 595-UCC287504DBVR	Texas Instruments	Switching Controllers Current-mode flyback controller with sec Learn More about Texas Instruments ti ucc28750 current mode flyback controller	Datasheet	2.858In Stock	Cut Tape 2,44 kr. 1,69 kr. 1,51 kr. 1,31 kr. Reel 1,03 kr. View 1,20 kr. 1,14 kr. 1,09 kr. 0,992 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	65 kHz	80 %	10 V to 26 V			- 40 C	+ 125 C	SMD/SMT	SOT-23-6		Reel, Cut Tape, MouseReel
Switching Controllers Current-mode flyback controller with sec UCC287505DBVR Texas Instruments 1: 2,44 kr. 1.775In Stock	Mfr. Part No. UCC287505DBVR Mouser Part No 595-UCC287505DBVR	Texas Instruments	Switching Controllers Current-mode flyback controller with sec Learn More about Texas Instruments ti ucc28750 current mode flyback controller	Datasheet	1.775In Stock	Cut Tape 2,44 kr. 1,69 kr. 1,51 kr. 1,31 kr. Reel 1,03 kr. View 1,20 kr. 1,14 kr. 1,09 kr. 0,992 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	100 kHz	80 %	10 V to 26 V			- 40 C	+ 125 C	SMD/SMT	SOT-23-6		Reel, Cut Tape, MouseReel
Switching Controllers Current-mode flyback controller with sec UCC287506DBVR Texas Instruments 1: 2,44 kr. 1.102In Stock	Mfr. Part No. UCC287506DBVR Mouser Part No 595-UCC287506DBVR	Texas Instruments	Switching Controllers Current-mode flyback controller with sec Learn More about Texas Instruments ti ucc28750 current mode flyback controller	Datasheet	1.102In Stock	Cut Tape 2,44 kr. 1,68 kr. 1,50 kr. 1,30 kr. Reel 1,01 kr. View 1,20 kr. 1,14 kr. 1,09 kr. 0,985 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	100 kHz	80 %	10 V to 26 V			- 40 C	+ 125 C	SMD/SMT	SOT-23-6		Reel, Cut Tape, MouseReel
Switching Controllers Current-mode flyback controller with sec UCC287507DBVR Texas Instruments 1: 2,44 kr. 2.975In Stock	Mfr. Part No. UCC287507DBVR Mouser Part No 595-UCC287507DBVR	Texas Instruments	Switching Controllers Current-mode flyback controller with sec Learn More about Texas Instruments ti ucc28750 current mode flyback controller	Datasheet	2.975In Stock	Cut Tape 2,44 kr. 1,69 kr. 1,51 kr. 1,31 kr. Reel 1,01 kr. View 1,20 kr. 1,14 kr. 1,09 kr. 0,992 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	100 kHz	80 %	10 V to 26 V			- 40 C	+ 125 C	SMD/SMT	SOT-23-6		Reel, Cut Tape, MouseReel
Switching Controllers Current-mode flyback controller with sec UCC287508DBVR Texas Instruments 1: 2,44 kr. 2.883In Stock	Mfr. Part No. UCC287508DBVR Mouser Part No 595-UCC287508DBVR	Texas Instruments	Switching Controllers Current-mode flyback controller with sec Learn More about Texas Instruments ti ucc28750 current mode flyback controller	Datasheet	2.883In Stock	Cut Tape 2,44 kr. 1,69 kr. 1,51 kr. 1,31 kr. Reel 1,01 kr. View 1,20 kr. 1,14 kr. 1,09 kr. 0,992 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	100 kHz	80 %	10 V to 26 V			- 40 C	+ 125 C	SMD/SMT	SOT-23-6		Reel, Cut Tape, MouseReel
Switching Controllers 75V, Synchronous Buck Controller Featuring Adaptive On-Time Control with Light Load Mode Selection MIC2127AYML-TR Microchip Technology 1: 9,92 kr. 1.988In Stock 5.000Expected 05/11/2026	Mfr. Part No. MIC2127AYML-TR Mouser Part No 579-MIC2127-AYML-TR	Microchip Technology	Switching Controllers 75V, Synchronous Buck Controller Featuring Adaptive On-Time Control with Light Load Mode Selection Learn More about Microchip Technology microchip mic2127a controller	Datasheet	1.988In Stock 5.000Expected 05/11/2026	Cut Tape 9,92 kr. 9,85 kr. Reel 8,36 kr. MouseReel Available	Min.: 1 Mult.: 1 : 5.000	Buck	1 Output	270 kHz to 800 kHz	85 %		600 mV to 30 V		- 40 C	+ 125 C	SMD/SMT	VQFN-16		Reel, Cut Tape, MouseReel
Switching Controllers 75V, Synchronous Buck Controller Featuring Adaptive On-Time Control with External Soft Start MIC2128YML-TR Microchip Technology 1: 9,92 kr. 3.554In Stock	Mfr. Part No. MIC2128YML-TR Mouser Part No 579-MIC2128YML-TR	Microchip Technology	Switching Controllers 75V, Synchronous Buck Controller Featuring Adaptive On-Time Control with External Soft Start Learn More about Microchip Technology microchip mic2128 buck controller	Datasheet	3.554In Stock	Cut Tape 9,92 kr. 9,85 kr. 8,95 kr. 8,88 kr. Reel 8,36 kr.	Min.: 1 Mult.: 1 : 5.000	Buck	1 Output	270 kHz to 800 kHz	85 %		600 mV to 30 V		- 40 C	+ 125 C	SMD/SMT	VQFN-16		Reel, Cut Tape
Switching Controllers Wide Vtg Range Buck- Boost Cntlr A 595-L A 595-LM25118Q1MHENOPB LM25118Q1MHX/NOPB Texas Instruments 1: 44,69 kr. 597In Stock 2.500Expected 11/02/2027	Mfr. Part No. LM25118Q1MHX/NOPB Mouser Part No 595-LM25118Q1MHXNOPB	Texas Instruments	Switching Controllers Wide Vtg Range Buck- Boost Cntlr A 595-L A 595-LM25118Q1MHENOPB Learn More about Texas Instruments ti lm25118 controller	Datasheet	597In Stock 2.500Expected 11/02/2027	Cut Tape 44,69 kr. 34,39 kr. 31,78 kr. 28,94 kr. View Reel 25,36 kr. 27,75 kr. 26,86 kr. 25,36 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Boost, Buck	1 Output	500 kHz	80 %		1.23 V to 38 V	4 A	- 40 C	+ 125 C	SMD/SMT	HTSSOP-20	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers High Perf Sync Buck Controller A 595-LM2 A 595-LM27403SQE/NOPB LM27403SQ/NOPB Texas Instruments 1: 25,51 kr. 1.713In Stock	Mfr. Part No. LM27403SQ/NOPB Mouser Part No 595-LM27403SQ/NOPB	Texas Instruments	Switching Controllers High Perf Sync Buck Controller A 595-LM2 A 595-LM27403SQE/NOPB Learn More about Texas Instruments ti lm27403 buck controller	Datasheet	1.713In Stock	Cut Tape 25,51 kr. 19,32 kr. 17,75 kr. 16,04 kr. Reel 13,95 kr. View 15,22 kr. 15,14 kr. 13,58 kr. 13,50 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Buck	1 Output	1.05 MHz	93 %		600 mV to 19 V	30 A	- 40 C	+ 125 C	SMD/SMT	WQFN-24		Reel, Cut Tape, MouseReel
Switching Controllers High Perf Sync Buck Cntlr A 595-LM27403S A 595-LM27403SQ/NOPB LM27403SQE/NOPB Texas Instruments 1: 25,51 kr. 3.294In Stock	Mfr. Part No. LM27403SQE/NOPB Mouser Part No 595-LM27403SQE/NOPB	Texas Instruments	Switching Controllers High Perf Sync Buck Cntlr A 595-LM27403S A 595-LM27403SQ/NOPB Learn More about Texas Instruments ti lm27403 buck controller	Datasheet	3.294In Stock	Cut Tape 25,51 kr. 19,32 kr. 17,75 kr. 16,04 kr. Reel 15,14 kr. View 14,40 kr. 13,95 kr. 13,80 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	1.05 MHz	93 %		600 mV to 19 V	25 A	- 40 C	+ 125 C	SMD/SMT	WQFN-24		Reel, Cut Tape, MouseReel
Switching Controllers Low Iq Wide Input R ange Synchronous Buc A 595-LM5141RGET LM5141RGER Texas Instruments 1: 39,54 kr. 1.086In Stock	Mfr. Part No. LM5141RGER Mouser Part No 595-LM5141RGER	Texas Instruments	Switching Controllers Low Iq Wide Input R ange Synchronous Buc A 595-LM5141RGET Learn More about Texas Instruments ti lm5141 controllers	Datasheet	1.086In Stock	Cut Tape 39,54 kr. 30,29 kr. 27,98 kr. 25,44 kr. 25,21 kr. Reel 21,41 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	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	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers 75V Synchronous Buck Controller With Wid A 595-LM5145RGYR LM5145RGYT Texas Instruments 1: 38,49 kr. 938In Stock 4.000On Order	Mfr. Part No. LM5145RGYT Mouser Part No 595-LM5145RGYT	Texas Instruments	Switching Controllers 75V Synchronous Buck Controller With Wid A 595-LM5145RGYR Learn More about Texas Instruments ti lm5145 q1 controllers	Datasheet	938In Stock 4.000On Order On Order Ship Dates Mfr. No: LM5145RGYT Stock: 938 Can Dispatch Immediately On Order: 2.250 Expected 15/03/2027 1.750 Expected 25/03/2027 Factory Lead Time: 20 Weeks	Cut Tape 38,49 kr. 29,32 kr. 27,01 kr. 24,54 kr. Reel 23,28 kr. View 22,60 kr. 22,23 kr. 22,01 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	100 kHz to 1 MHz	99 %		800 mV to 60 V	30 A	- 40 C	+ 125 C	SMD/SMT	VQFN-20		Reel, Cut Tape, MouseReel
Switching Controllers Multiphase bidirecti onal current contro A 595-LM5170QPHPRQ1 LM5170QPHPTQ1 Texas Instruments 1: 124,88 kr. 324In Stock	Mfr. Part No. LM5170QPHPTQ1 Mouser Part No 595-LM5170QPHPTQ1	Texas Instruments	Switching Controllers Multiphase bidirecti onal current contro A 595-LM5170QPHPRQ1	Datasheet	324In Stock	Cut Tape 124,88 kr. 98,99 kr. 92,58 kr. 92,50 kr. Reel 78,63 kr. MouseReel Available	Min.: 1 Mult.: 1 : 250	Boost, Buck	2 Output	50 kHz to 500 kHz	100 %		100 mV to 100 V	50 A	- 40 C	+ 150 C	SMD/SMT	HTQFP-48	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers 4 Ch Multiphase Buck DC/DC Controller A A 595-TPS40090PW TPS40090PWR Texas Instruments 1: 41,10 kr. 383In Stock	Mfr. Part No. TPS40090PWR Mouser Part No 595-TPS40090PWR	Texas Instruments	Switching Controllers 4 Ch Multiphase Buck DC/DC Controller A A 595-TPS40090PW	Datasheet	383In Stock	Cut Tape 41,10 kr. 31,48 kr. 29,09 kr. 26,48 kr. 26,26 kr. Reel 22,31 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.000	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		Reel, Cut Tape, MouseReel
Switching Controllers Wide Inp Non-Synch B uck DC/DC Cntrlr A A 595-TPS40200DRBT TPS40200DRBR Texas Instruments 1: 15,82 kr. 2.396In Stock	Mfr. Part No. TPS40200DRBR Mouser Part No 595-TPS40200DRBR	Texas Instruments	Switching Controllers Wide Inp Non-Synch B uck DC/DC Cntrlr A A 595-TPS40200DRBT	Datasheet	2.396In Stock	Cut Tape 15,82 kr. 10,74 kr. 9,85 kr. 8,88 kr. Reel 7,68 kr. View 8,43 kr. 8,21 kr. 7,53 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	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 Mil Enhanced Nonsync Vltg-Mode Cntrlr TPS40200MDREP Texas Instruments 1: 38,72 kr. 737In Stock 2.500Expected 15/02/2027	Mfr. Part No. TPS40200MDREP Mouser Part No 595-TPS40200MDREP	Texas Instruments	Switching Controllers Mil Enhanced Nonsync Vltg-Mode Cntrlr	Datasheet	737In Stock 2.500Expected 15/02/2027	Cut Tape 38,72 kr. 29,54 kr. 27,23 kr. 24,62 kr. View Reel 22,23 kr. 23,42 kr. 22,68 kr. 22,45 kr. 22,23 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	- 55 C	+ 125 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel