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 CONSTANT-CURRENT BUCK REGULATOR FOR DRIVING HIGH POWER LEDS NCV30161MNWTXG onsemi 1: 10,52 kr. 2.910In Stock	Mfr. Part No. NCV30161MNWTXG Mouser Part No 863-NCV30161MNWTXG	onsemi	Switching Controllers CONSTANT-CURRENT BUCK REGULATOR FOR DRIVING HIGH POWER LEDS Learn More about onsemi energy storage solutions	Datasheet	2.910In Stock	Cut Tape 10,52 kr. 7,68 kr. 6,99 kr. 6,21 kr. Reel 5,18 kr. View 5,83 kr. 5,60 kr. 5,54 kr. 5,07 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	2.4 MHz	100 %	1.36 V		- 40 C	+ 125 C	SMD/SMT	DFNW-10		Reel, Cut Tape, MouseReel
Switching Controllers High Efficiency Synchronous Buck Controller MIC2182-3.3YM Microchip Technology 1: 29,69 kr. 96In Stock	Mfr. Part No. MIC2182-3.3YM Mouser Part No 998-MIC2182-3.3YM	Microchip Technology	Switching Controllers High Efficiency Synchronous Buck Controller	Datasheet	96In Stock	29,69 kr. 24,92 kr.	Min.: 1 Mult.: 1	Buck	5 Output	330 kHz	86 %	3.3 V	20 A	- 40 C	+ 85 C	SMD/SMT	SOP-16		Tube
Switching Controllers Monolithic SMPS Controller MIC38C43YN Microchip Technology 1: 10,29 kr. 319In Stock	Mfr. Part No. MIC38C43YN Mouser Part No 998-MIC38C43YN	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	319In Stock	10,29 kr. 8,58 kr. 7,76 kr.	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	500 kHz	96 %	5 V	500 mA	- 40 C	+ 85 C	Through Hole	DIP-8		Tube
Switching Controllers 500KHz Synchronous Buck Controller MIC2169AYMM Microchip Technology 1: 17,83 kr. 89In Stock	Mfr. Part No. MIC2169AYMM Mouser Part No 998-MIC2169AYMM	Microchip Technology	Switching Controllers 500KHz Synchronous Buck Controller	Datasheet	89In Stock	17,83 kr. 14,85 kr.	Min.: 1 Mult.: 1	Buck	1 Output	500 kHz	92 %	800 mV		- 40 C	+ 125 C	SMD/SMT	MSOP-10		Tube
Switching Controllers Monolithic SMPS Controller MIC38C42-1YM Microchip Technology 1: 23,13 kr. 196In Stock	Mfr. Part No. MIC38C42-1YM Mouser Part No 998-MIC38C42-1YM	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	196In Stock	23,13 kr. 19,47 kr. 17,68 kr.	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	500 kHz	96 %	5 V	500 mA	- 40 C	+ 85 C	SMD/SMT	SOIC-14		Tube
Switching Controllers Monolithic SMPS Controller MIC38C42AYM Microchip Technology 1: 16,26 kr. 87In Stock	Mfr. Part No. MIC38C42AYM Mouser Part No 998-MIC38C42AYM	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	87In Stock	16,26 kr. 13,58 kr. 12,31 kr.	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	500 kHz	96 %	5 V	500 mA	- 40 C	+ 85 C	SMD/SMT	SOIC-8		Tube
Switching Controllers Fixed Freq 99% Duty Cycle Peak Current A A 595-TPS51220RHBT TPS51220RHBR Texas Instruments 1: 27,90 kr. 2.251In Stock	Mfr. Part No. TPS51220RHBR Mouser Part No 595-TPS51220RHBR	Texas Instruments	Switching Controllers Fixed Freq 99% Duty Cycle Peak Current A A 595-TPS51220RHBT	Datasheet	2.251In Stock	Cut Tape 27,90 kr. 21,04 kr. 19,32 kr. 17,46 kr. View Reel 14,99 kr. 16,56 kr. 16,41 kr. 15,44 kr. 14,99 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	2 Output	200 kHz to 1 MHz	99 %	1 V to 12 V	20 A	- 40 C	+ 85 C	SMD/SMT	VQFN-32		Reel, Cut Tape, MouseReel
Switching Controllers Current-Mode PWM Con troller A 595-UC384 A 595-UC3842D UC3842DTR Texas Instruments 1: 9,70 kr. 1.918In Stock	Mfr. Part No. UC3842DTR Mouser Part No 595-UC3842DTR	Texas Instruments	Switching Controllers Current-Mode PWM Con troller A 595-UC384 A 595-UC3842D	Datasheet	1.918In Stock	Cut Tape 9,70 kr. 7,06 kr. 6,40 kr. 5,68 kr. Reel 4,67 kr. View 5,34 kr. 5,13 kr. 5,07 kr. 4,65 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-14		Reel, Cut Tape, MouseReel
Switching Controllers Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3842N UC3842NG4 Texas Instruments 1: 14,17 kr. 891In Stock	Mfr. Part No. UC3842NG4 Mouser Part No 595-UC3842NG4	Texas Instruments	Switching Controllers Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3842N	Datasheet	891In Stock	14,17 kr. 10,52 kr. 9,40 kr. 8,43 kr. View 7,98 kr. 6,53 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 Two-Phase Sync SD Sw itching Cntlr LM2642MTC/NOPB Texas Instruments 1: 33,27 kr. 363In Stock	Mfr. Part No. LM2642MTC/NOPB Mouser Part No 926-LM2642MTC/NOPB	Texas Instruments	Switching Controllers Two-Phase Sync SD Sw itching Cntlr	Datasheet	363In Stock	33,27 kr. 25,36 kr. 19,99 kr. 19,02 kr. View 18,87 kr. 18,80 kr. 18,58 kr. 18,43 kr.	Min.: 1 Mult.: 1	Buck	2 Output	300 kHz	98 %	1.3 V to 30 V	20 A	- 40 C	+ 125 C	SMD/SMT	TSSOP-28		Tube
Switching Controllers High-Performance Syn chronous Buck Contr A 926-LM21212MH-1/NOPB LM3743MM-300/NOPB Texas Instruments 1: 16,56 kr. 986In Stock	Mfr. Part No. LM3743MM-300/NOPB Mouser Part No 926-LM3743MM300NOPB	Texas Instruments	Switching Controllers High-Performance Syn chronous Buck Contr A 926-LM21212MH-1/NOPB	Datasheet	986In Stock	Cut Tape 16,56 kr. 12,31 kr. 11,26 kr. 10,07 kr. Reel 8,80 kr. View 9,55 kr. 9,25 kr. 8,28 kr. 8,21 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Buck	1 Output	300 kHz	91 %	800 mV to 4.6 V	20 A	- 40 C	+ 125 C	SMD/SMT	MSOP-10		Reel, Cut Tape, MouseReel
Switching Controllers Mid Input Sync Buck w/Vltg Feed-Fwd TPS40074RHLR Texas Instruments 1: 24,99 kr. 2.626In Stock	Mfr. Part No. TPS40074RHLR Mouser Part No 595-TPS40074RHLR	Texas Instruments	Switching Controllers Mid Input Sync Buck w/Vltg Feed-Fwd	Datasheet	2.626In Stock	Cut Tape 24,99 kr. 19,02 kr. Reel 19,02 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	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 Current-Mode NB Sys Pwr Controller TPS51220ATRTVRQ1 Texas Instruments 1: 32,90 kr. 2.517In Stock	Mfr. Part No. TPS51220ATRTVRQ1 Mouser Part No 595-TPS51220ATRTVRQ1	Texas Instruments	Switching Controllers Current-Mode NB Sys Pwr Controller	Datasheet	2.517In Stock	Cut Tape 32,90 kr. 24,84 kr. 22,75 kr. 20,59 kr. View Reel 18,13 kr. 19,47 kr. 19,40 kr. 18,20 kr. 18,13 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	2 Output	200 kHz to 1 MHz	99 %	1 V to 12 V	20 A	- 40 C	+ 85 C	SMD/SMT	WQFN-32	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3842AD8TR UC3842AD8TRG4 Texas Instruments 1: 6,29 kr. 2.711In Stock	Mfr. Part No. UC3842AD8TRG4 Mouser Part No 595-UC3842AD8TRG4	Texas Instruments	Switching Controllers Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3842AD8TR	Datasheet	2.711In Stock	Cut Tape 6,29 kr. 4,48 kr. 4,04 kr. 3,55 kr. Reel 2,93 kr. View 3,32 kr. 3,18 kr. 3,07 kr. 2,86 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 75V, Dual Phase Advanced COT PWM Controller MIC2133YML-TR Microchip Technology 1: 15,74 kr. 3.571In Stock	Mfr. Part No. MIC2133YML-TR Mouser Part No 494-MIC2133YML-TR	Microchip Technology	Switching Controllers 75V, Dual Phase Advanced COT PWM Controller Learn More about Microchip Technology microchip mic2133 controllers	Datasheet	3.571In Stock	Cut Tape 15,74 kr. 14,17 kr. 14,10 kr. 13,95 kr. 13,50 kr. Reel 12,61 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 Con troller A 595-TPS40 A 595-TPS40077PWPR TPS40077PWP Texas Instruments 1: 34,69 kr. 319In Stock	Mfr. Part No. TPS40077PWP Mouser Part No 595-TPS40077PWP	Texas Instruments	Switching Controllers Synchronous Buck Con troller A 595-TPS40 A 595-TPS40077PWPR	Datasheet	319In Stock	34,69 kr. 26,41 kr. 22,83 kr. 21,86 kr. View 20,96 kr. 20,29 kr. 19,99 kr. 19,69 kr. Quote	Min.: 1 Mult.: 1	Buck	1 Output	1 MHz	93 %	700 mV	20 A	- 40 C	+ 85 C	SMD/SMT	HTSSOP-16		Tube
Switching Controllers AC Low Iq dual Sync Buck Cntrlr TPS43351QDAPRQ1 Texas Instruments 1: 41,18 kr. 1.850In Stock	Mfr. Part No. TPS43351QDAPRQ1 Mouser Part No 595-TPS43351QDAPRQ1	Texas Instruments	Switching Controllers AC Low Iq dual Sync Buck Cntrlr	Datasheet	1.850In Stock	Cut Tape 41,18 kr. 31,56 kr. 29,17 kr. 26,56 kr. View Reel 23,95 kr. 25,29 kr. 24,54 kr. 24,25 kr. 23,95 kr. MouseReel Available	Min.: 1 Mult.: 1 : 2.000	Buck	2 Output	150 kHz to 600 kHz	98.75 %	5 V	6 A	- 40 C	+ 125 C	SMD/SMT	HTSSOP-38	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers Low-Voltage Synchron ous Buck Controller LM1771SSD/NOPB Texas Instruments 1: 16,11 kr. 597In Stock	Mfr. Part No. LM1771SSD/NOPB Mouser Part No 926-LM1771SSD/NOPB	Texas Instruments	Switching Controllers Low-Voltage Synchron ous Buck Controller	Datasheet	597In Stock	Cut Tape 16,11 kr. 12,01 kr. 10,97 kr. 9,85 kr. Reel 8,43 kr. View 9,33 kr. 8,95 kr. 8,06 kr. MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Buck	1 Output	100 kHz to 1 MHz	95 %	800 mV to 4.5 V	6 A	- 40 C	+ 125 C	SMD/SMT	WSON-6		Reel, Cut Tape, MouseReel
Switching Controllers Automotive 2.2-MHz l ow-IQ synchronous b LM25141QURGERQ1 Texas Instruments 1: 33,42 kr. 3.988In Stock	Mfr. Part No. LM25141QURGERQ1 Mouser Part No 595-LM25141QURGERQ1	Texas Instruments	Switching Controllers Automotive 2.2-MHz l ow-IQ synchronous b Learn More about Texas Instruments ti lm25141 controller	Datasheet	3.988In Stock	Cut Tape 33,42 kr. 25,44 kr. 23,42 kr. 21,26 kr. View Reel 19,10 kr. 20,22 kr. 19,55 kr. 19,32 kr. 19,10 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	Buck	1 Output	440 kHz, 4.4 MHz	99 %	3.3 V, 5 V, 1.5 V to 15 V	30 A	- 40 C	+ 150 C	SMD/SMT	VQFN-24		Reel, Cut Tape, MouseReel
Switching Controllers Wide Input Range Syn Buck Controller A 5 A 595-LM5141RGER LM5141RGET Texas Instruments 1: 44,09 kr. 200In Stock	Mfr. Part No. LM5141RGET Mouser Part No 595-LM5141RGET	Texas Instruments	Switching Controllers Wide Input Range Syn Buck Controller A 5 A 595-LM5141RGER Learn More about Texas Instruments ti lm5141 controllers	Datasheet	200In Stock	Cut Tape 44,09 kr. 33,94 kr. 31,41 kr. 31,26 kr. Reel 27,83 kr. View 27,75 kr. 27,38 kr. Quote 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	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64201DBVT TPS64201DBVR Texas Instruments 1: 11,26 kr. 1.246In Stock	Mfr. Part No. TPS64201DBVR Mouser Part No 595-TPS64201DBVR	Texas Instruments	Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64201DBVT	Datasheet	1.246In Stock	Cut Tape 11,26 kr. 8,28 kr. 7,53 kr. 6,67 kr. Reel 5,61 kr. View 6,30 kr. 6,05 kr. 6,02 kr. 5,52 kr. MouseReel Available	Min.: 1 Mult.: 1 : 3.000	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 Current-Mode PWM Con troller A 595-UC384 A 595-UC3843AD UC3843ADTR Texas Instruments 1: 3,78 kr. 2.381In Stock	Mfr. Part No. UC3843ADTR Mouser Part No 595-UC3843ADTR	Texas Instruments	Switching Controllers Current-Mode PWM Con troller A 595-UC384 A 595-UC3843AD	Datasheet	2.381In Stock	Cut Tape 3,78 kr. 2,68 kr. 2,61 kr. Reel 2,61 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-14		Reel, Cut Tape, MouseReel
Switching Controllers L IQ, 38V Sync Boost+Buck Cntr LTC7812IUH#PBF Analog Devices 1: 55,58 kr. 475In Stock	Mfr. Part No. LTC7812IUH#PBF Mouser Part No 584-LTC7812IUH#PBF	Analog Devices	Switching Controllers L IQ, 38V Sync Boost+Buck Cntr Learn More about Analog Devices adi ltc781 controllers	Datasheet	475In Stock	55,58 kr. 54,31 kr. 54,09 kr.	Min.: 1 Mult.: 1	Boost, Buck	2 Output	850 kHz	100 %	800 mV to 60 V	20 A	- 40 C	+ 125 C	SMD/SMT	QFN-32		Tube
Switching Controllers GSM Power Management System ADP1972ARUZ-R7 Analog Devices 1: 48,64 kr. 999In Stock	Mfr. Part No. ADP1972ARUZ-R7 Mouser Part No 584-ADP1972ARUZ-R7	Analog Devices	Switching Controllers GSM Power Management System Learn More about Analog Devices adi adp1972 pwm controller	Datasheet	999In Stock	Cut Tape 48,64 kr. 47,52 kr. 47,30 kr. 47,30 kr. MouseReel Available	Min.: 1 Mult.: 1	Boost, Buck	1 Output	300 kHz	98 %		5 mA	- 40 C	+ 125 C	SMD/SMT	TSSOP-16		Reel, Cut Tape, MouseReel
Switching Controllers Low-Dropout, Wide-Input-Voltage, Step-Do MAX8598ETE+ Analog Devices / Maxim Integrated 1: 94,97 kr. 422In Stock	Mfr. Part No. MAX8598ETE+ Mouser Part No 700-MAX8598ETE	Analog Devices / Maxim Integrated	Switching Controllers Low-Dropout, Wide-Input-Voltage, Step-Do	Datasheet	422In Stock	94,97 kr. 74,38 kr. 69,23 kr. 63,48 kr. View 62,89 kr. 59,16 kr. 57,89 kr. Quote	Min.: 1 Mult.: 1	Buck	1 Output	200 kHz to 1.4 MHz	99.5 %	600 mV to 28 V	20 A	- 40 C	+ 85 C	SMD/SMT	TQFN-16		Tube