Switching Controllers – Mouser United Kingdom

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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 (GBP) 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 Wide Inp Non-Sync Buck DC/DC Cntrlr TPS40200SHKJ Texas Instruments 1: £177.11 390In Stock	Mfr. Part No. TPS40200SHKJ Mouser Part No 595-TPS40200SHKJ	Texas Instruments	Switching Controllers Wide Inp Non-Sync Buck DC/DC Cntrlr	Datasheet	390In Stock	£177.11 £173.45 £155.56	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	CFP-8		Tube
Switching Controllers Wide In Non-Sync Buc k DC/DC Cntrlr TPS40200GDR Texas Instruments 1: £1.85 29,330In Stock	Mfr. Part No. TPS40200GDR Mouser Part No 595-TPS40200GDR	Texas Instruments	Switching Controllers Wide In Non-Sync Buc k DC/DC Cntrlr	Datasheet	29,330In Stock	Cut Tape £1.85 £1.38 £1.26 £1.13 Reel £0.925 View £1.07 £1.03 £0.995 £0.899 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 AUTO CAT WIDE-INPUT SYNCH BUCK TPS40051QPWPRQ1 Texas Instruments 1: £5.10 5,223In Stock	Mfr. Part No. TPS40051QPWPRQ1 Mouser Part No 595-TPS40051QPWPRQ1	Texas Instruments	Switching Controllers AUTO CAT WIDE-INPUT SYNCH BUCK	Datasheet	5,223In Stock	Cut Tape £5.10 £3.91 £3.61 £3.29 View Reel £2.82 £3.13 £3.03 £3.00 £2.82 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Buck	1 Output	100 kHz to 1 MHz	85 %	700 mV to 35 V	20 A	- 40 C	+ 125 C	SMD/SMT	HTSSOP-16	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers Digitally enhanced power analog buck controller MCP19123T-E/MQ Microchip Technology 1: £4.48 3,299In Stock	Mfr. Part No. MCP19123T-E/MQ Mouser Part No 579-MCP19123T-E/MQ	Microchip Technology	Switching Controllers Digitally enhanced power analog buck controller Learn More about Microchip Technology microchip mcp19122 mcp19123 controllers	Datasheet	3,299In Stock	Cut Tape £4.48 £3.74 Reel £3.40	Min.: 1 Mult.: 1 : 3,300	Buck	1 Output	100 kHz to 1.6 MHz	100 %	300 mV to 16 V	4 A	- 40 C	+ 125 C	SMD/SMT	QFN-28		Reel, Cut Tape
Switching Controllers 4.5V-20V Buck Cntrlr A 595-TPS40195RGYT A 595-TPS40195RGYT TPS40195RGYR Texas Instruments 1: £2.71 4,368In Stock	Mfr. Part No. TPS40195RGYR Mouser Part No 595-TPS40195RGYR	Texas Instruments	Switching Controllers 4.5V-20V Buck Cntrlr A 595-TPS40195RGYT A 595-TPS40195RGYT	Datasheet	4,368In Stock	Cut Tape £2.71 £2.02 £1.85 £1.66 Reel £1.41 View £1.57 £1.53 £1.46 £1.38 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	600 kHz	85 %	591 mV to 17 V	20 A	- 40 C	+ 85 C	SMD/SMT	VQFN-16		Reel, Cut Tape, MouseReel
Switching Controllers Dual Output 2-Ph Syn ch Buck Cntrlr A 59 A 595-TPS5120DBT TPS5120DBTR Texas Instruments 1: £7.90 1,574In Stock	Mfr. Part No. TPS5120DBTR Mouser Part No 595-TPS5120DBTR	Texas Instruments	Switching Controllers Dual Output 2-Ph Syn ch Buck Cntrlr A 59 A 595-TPS5120DBT	Datasheet	1,574In Stock	Cut Tape £7.90 £6.16 £5.74 £5.26 View Reel £4.55 £5.00 £4.91 £4.79 £4.55 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Buck	2 Output	100 kHz to 500 kHz	83 %	900 mV to 26 V	20 A	- 40 C	+ 85 C	SMD/SMT	TSSOP-30		Reel, Cut Tape, MouseReel
Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64203DBVT TPS64203DBVR Texas Instruments 1: £1.21 12,962In Stock	Mfr. Part No. TPS64203DBVR Mouser Part No 595-TPS64203DBVR	Texas Instruments	Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64203DBVT	Datasheet	12,962In Stock	Cut Tape £1.21 £0.908 £0.834 £0.749 Reel £0.656 View £0.71 £0.684 £0.681 £0.642 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	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 Efficiency High -Side N-Channel Con A 926-LM3477MMX/NOPB LM3477MM/NOPB Texas Instruments 1: £2.55 1,138In Stock	Mfr. Part No. LM3477MM/NOPB Mouser Part No 926-LM3477MM/NOPB	Texas Instruments	Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477MMX/NOPB	Datasheet	1,138In Stock	Cut Tape £2.55 £1.90 £1.74 £1.55 View Reel £1.27 £1.48 £1.44 £1.27 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Buck	1 Output	500 kHz	93 %	1.265 V	6 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel
Switching Controllers Synchronous Buck Con troller A 595-TPS40 A 595-TPS40077PWP TPS40077PWPR Texas Instruments 1: £3.51 2,047In Stock	Mfr. Part No. TPS40077PWPR Mouser Part No 595-TPS40077PWPR	Texas Instruments	Switching Controllers Synchronous Buck Con troller A 595-TPS40 A 595-TPS40077PWP	Datasheet	2,047In Stock	Cut Tape £3.51 £2.67 £2.46 £2.23 View Reel £1.84 £2.12 £1.99 £1.84 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Buck	1 Output	1 MHz	93 %	700 mV	20 A	- 40 C	+ 85 C	SMD/SMT	HTSSOP-16		Reel, Cut Tape, MouseReel
Switching Controllers 3V-20V Wide Inp Sync Buck Controller A 5 A 595-TPS40304ADRCT TPS40304ADRCR Texas Instruments 1: £1.02 2,896In Stock	Mfr. Part No. TPS40304ADRCR Mouser Part No 595-TPS40304ADRCR	Texas Instruments	Switching Controllers 3V-20V Wide Inp Sync Buck Controller A 5 A 595-TPS40304ADRCT	Datasheet	2,896In Stock	Cut Tape £1.02 £0.834 £0.759 £0.67 Reel £0.565 View £0.63 £0.605 £0.598 £0.559 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	600 kHz	90 %	600 mV to 18 V	25 A	- 40 C	+ 145 C	SMD/SMT	VSON-10		Reel, Cut Tape, MouseReel
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C43DGK UCC38C43DGKR Texas Instruments 1: £1.52 3,881In Stock	Mfr. Part No. UCC38C43DGKR Mouser Part No 595-UCC38C43DGKR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C43DGK Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	3,881In Stock	Cut Tape £1.52 £1.41 £1.29 £1.15 Reel £0.986 View £1.09 £1.05 £1.01 £0.96 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 3-28V In 20A Synch S tep Down Cntrlr A 5 A 595-TPS51218DSCT TPS51218DSCR Texas Instruments 1: £1.90 2,885In Stock	Mfr. Part No. TPS51218DSCR Mouser Part No 595-TPS51218DSCR	Texas Instruments	Switching Controllers 3-28V In 20A Synch S tep Down Cntrlr A 5 A 595-TPS51218DSCT	Datasheet	2,885In Stock	Cut Tape £1.90 £1.41 £1.28 £1.15 Reel £0.969 View £1.09 £1.05 £1.01 £0.899 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	465 kHz	91 %	700 mV to 2.6 V	20 A	- 40 C	+ 85 C	SMD/SMT	WSON-10		Reel, Cut Tape, MouseReel
Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64200DBVT TPS64200DBVR Texas Instruments 1: £1.32 2,827In Stock	Mfr. Part No. TPS64200DBVR Mouser Part No 595-TPS64200DBVR	Texas Instruments	Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64200DBVT	Datasheet	2,827In Stock	Cut Tape £1.32 £0.969 £0.882 £0.788 Reel £0.646 View £0.735 £0.708 £0.705 £0.635 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	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 Wide Input Sync Buck Cntrlr source/sink A 595-TPS40061PWP TPS40061PWPR Texas Instruments 1: £3.57 1,567In Stock	Mfr. Part No. TPS40061PWPR Mouser Part No 595-TPS40061PWPR	Texas Instruments	Switching Controllers Wide Input Sync Buck Cntrlr source/sink A 595-TPS40061PWP	Datasheet	1,567In Stock	Cut Tape £3.57 £2.88 £2.71 £2.51 £2.49 Reel £2.48 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 High Speed PWM Contr oller A 595-UC2823D A 595-UC2823DWTR UC2823DW Texas Instruments 1: £11.06 199In Stock	Mfr. Part No. UC2823DW Mouser Part No 595-UC2823DW	Texas Instruments	Switching Controllers High Speed PWM Contr oller A 595-UC2823D A 595-UC2823DWTR	Datasheet	199In Stock	£11.06 £8.73 £7.91 £7.43 View £7.16 £7.00 £6.86 Quote	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	1 MHz	100 %	5.1 V	2 A	- 25 C	+ 85 C	SMD/SMT	SOIC-16		Tube
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40D UCC38C40DR Texas Instruments 1: £0.698 3,965In Stock	Mfr. Part No. UCC38C40DR Mouser Part No 595-UCC38C40DR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40D Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	3,965In Stock	Cut Tape £0.698 £0.502 £0.453 £0.398 View Reel £0.313 £0.373 £0.357 £0.345 £0.313 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	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers 4.5V to 20V Buck A 5 95-TPS40195PW A 595 A 595-TPS40195PW TPS40195PWR Texas Instruments 1: £2.63 2,344In Stock	Mfr. Part No. TPS40195PWR Mouser Part No 595-TPS40195PWR	Texas Instruments	Switching Controllers 4.5V to 20V Buck A 5 95-TPS40195PW A 595 A 595-TPS40195PW	Datasheet	2,344In Stock	Cut Tape £2.63 £1.98 £1.82 £1.63 View Reel £1.37 £1.55 £1.50 £1.46 £1.37 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	Buck	1 Output	600 kHz	85 %	591 mV	20 A	- 40 C	+ 85 C	SMD/SMT	TSSOP-16		Reel, Cut Tape, MouseReel
Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64202DBVT TPS64202DBVR Texas Instruments 1: £1.32 2,520In Stock	Mfr. Part No. TPS64202DBVR Mouser Part No 595-TPS64202DBVR	Texas Instruments	Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64202DBVT	Datasheet	2,520In Stock	Cut Tape £1.32 £0.969 £0.882 £0.788 Reel £0.656 View £0.736 £0.708 £0.684 £0.642 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	550 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 BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42D UCC38C42DR Texas Instruments 1: £0.788 3,261In Stock	Mfr. Part No. UCC38C42DR Mouser Part No 595-UCC38C42DR	Texas Instruments	Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42D Learn More about Texas Instruments ti ucc28c4x q1 controllers	Datasheet	3,261In Stock	Cut Tape £0.788 £0.571 £0.515 £0.454 View Reel £0.354 £0.425 £0.408 £0.396 £0.354 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	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers High Perf Sync Buck Cntrlr A 926-LM27402 A 926-LM27402MH/NOPB LM27402MHX/NOPB Texas Instruments 1: £2.54 2,190In Stock	Mfr. Part No. LM27402MHX/NOPB Mouser Part No 926-LM27402MHX/NOPB	Texas Instruments	Switching Controllers High Perf Sync Buck Cntrlr A 926-LM27402 A 926-LM27402MH/NOPB	Datasheet	2,190In Stock	Cut Tape £2.54 £2.15 £1.96 £1.76 Reel £1.53 View £1.67 £1.63 £1.55 £1.51 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Buck	1 Output	200 kHz to 1.2 MHz	95 %	600 mV to 18.6 V	30 A	- 40 C	+ 125 C	SMD/SMT	HTSSOP-16		Reel, Cut Tape, MouseReel
Switching Controllers Wide Input Range Syn c Buck Cntlr A 926- A 926-LM5117PMH/NOPB LM5117PMHE/NOPB Texas Instruments 1: £5.60 453In Stock	Mfr. Part No. LM5117PMHE/NOPB Mouser Part No 595-LM5117PMHE/NOPB	Texas Instruments	Switching Controllers Wide Input Range Syn c Buck Cntlr A 926- A 926-LM5117PMH/NOPB	Datasheet	453In Stock	Cut Tape £5.60 £4.32 £4.00 £3.65 Reel £3.20 View £3.17 £3.13 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	HTSSOP-20		Reel, Cut Tape, MouseReel
Switching Controllers Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3802D UCC3802DTR Texas Instruments 1: £1.89 3,361In Stock	Mfr. Part No. UCC3802DTR Mouser Part No 595-UCC3802DTR	Texas Instruments	Switching Controllers Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3802D	Datasheet	3,361In Stock	Cut Tape £1.89 £1.41 £1.28 £1.15 View Reel £0.917 £1.09 £1.05 £1.01 £0.917 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Buck, Flyback, Forward	1 Output	1 MHz	100 %	5 V	1 A	0 C	+ 70 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2737MTCX/NOPB LM2737MTC/NOPB Texas Instruments 1: £2.06 1,089In Stock	Mfr. Part No. LM2737MTC/NOPB Mouser Part No 926-LM2737MTC/NOPB	Texas Instruments	Switching Controllers 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2737MTCX/NOPB	Datasheet	1,089In Stock	£2.06 £1.53 £1.27 £1.20 View £1.18 £1.13 £1.10 £1.07 £1.05	Min.: 1 Mult.: 1	Buck	1 Output	2 MHz	90 %	600 mV to 5 V	20 A	- 40 C	+ 125 C	SMD/SMT	TSSOP-14		Tube
Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr LTC3894EFE#PBF Analog Devices 1: £6.90 6,128In Stock	Mfr. Part No. LTC3894EFE#PBF Mouser Part No 584-LTC3894EFE#PBF	Analog Devices	Switching Controllers 150V Low IQ Step-Dwn DC/DC Ctlr Learn More about Analog Devices adi ltc389x controllers	Datasheet	6,128In Stock	£6.90 £5.37 £4.64 £4.46 View £4.34 £4.23 £4.13 £3.91	Min.: 1 Mult.: 1 Max.: 4,902	Buck	1 Output	50 kHz to 850 kHz	100 %	800 mV to 60 V	10 A	- 40 C	+ 125 C	SMD/SMT	TSSOP-20-16		Tube
Switching Controllers 150V L IQ, Sync Buck DC/DC Cntr LTC7801EFE#PBF Analog Devices 1: £10.15 1,999In Stock	Mfr. Part No. LTC7801EFE#PBF Mouser Part No 584-LTC7801EFEPBF	Analog Devices	Switching Controllers 150V L IQ, Sync Buck DC/DC Cntr	Datasheet	1,999In Stock	£10.15 £8.63 £7.64 £7.25 £6.50	Min.: 1 Mult.: 1 Max.: 1,695	Buck	1 Output	50 kHz to 900 kHz	100 %	800 mV to 60 V	10 A	- 40 C	+ 125 C	SMD/SMT	TSSOP-24		Tube