Switching Controllers – Mouser Singapore

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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 (SGD) 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: $320.82 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	$320.82 $314.19 $281.79	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: $3.36 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 $3.36 $2.50 $2.28 $2.04 Reel $1.67 View $1.93 $1.86 $1.80 $1.63 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: $9.23 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 $9.23 $7.09 $6.54 $5.96 View Reel $5.10 $5.67 $5.49 $5.44 $5.10 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: $8.12 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 $8.12 $6.77 Reel $6.15	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: $4.91 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 $4.91 $3.66 $3.35 $3.01 Reel $2.54 View $2.84 $2.77 $2.64 $2.50 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: $14.31 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 $14.31 $11.17 $10.39 $9.52 View Reel $8.24 $9.06 $8.88 $8.68 $8.24 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: $2.20 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 $2.20 $1.65 $1.51 $1.36 Reel $1.19 View $1.29 $1.24 $1.23 $1.16 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: $4.61 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 $4.61 $3.44 $3.14 $2.82 View Reel $2.31 $2.67 $2.61 $2.31 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: $6.36 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 $6.36 $4.84 $4.46 $4.04 View Reel $3.33 $3.84 $3.60 $3.33 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: $1.85 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 $1.85 $1.51 $1.37 $1.21 Reel $1.02 View $1.14 $1.10 $1.08 $1.01 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: $2.75 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 $2.75 $2.56 $2.34 $2.09 Reel $1.78 View $1.97 $1.90 $1.84 $1.74 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: $3.44 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 $3.44 $2.56 $2.33 $2.09 Reel $1.75 View $1.97 $1.90 $1.84 $1.62 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: $2.38 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 $2.38 $1.75 $1.59 $1.43 Reel $1.17 View $1.33 $1.28 $1.15 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: $6.47 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 $6.47 $5.22 $4.91 $4.56 $4.50 Reel $4.49 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: $20.03 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	$20.03 $15.82 $14.32 $13.46 View $12.97 $12.69 $12.43 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: $1.26 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 $1.26 $0.91 $0.82 $0.721 View Reel $0.566 $0.675 $0.646 $0.624 $0.566 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: $4.76 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 $4.76 $3.59 $3.29 $2.96 View Reel $2.48 $2.82 $2.72 $2.64 $2.48 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: $2.38 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 $2.38 $1.75 $1.59 $1.43 Reel $1.19 View $1.33 $1.28 $1.24 $1.16 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: $1.43 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 $1.43 $1.03 $0.933 $0.823 View Reel $0.641 $0.77 $0.738 $0.718 $0.641 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: $4.60 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 $4.60 $3.89 $3.56 $3.20 Reel $2.77 View $3.02 $2.95 $2.80 $2.73 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: $10.15 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 $10.15 $7.83 $7.25 $6.61 Reel $5.78 View $5.74 $5.67 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: $3.43 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 $3.43 $2.54 $2.33 $2.08 View Reel $1.66 $1.97 $1.90 $1.84 $1.66 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: $3.73 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	$3.73 $2.77 $2.30 $2.18 View $2.14 $2.05 $2.00 $1.93 $1.89	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: $12.50 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	$12.50 $9.72 $8.40 $8.08 View $7.86 $7.67 $7.48 Quote	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: $18.39 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	$18.39 $15.64 $13.84 $13.12 $11.46	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