Switching Controllers – Mouser Taiwan

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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 (TWD) 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 AUTO CAT WIDE-INPUT SYNCH BUCK TPS40051QPWPRQ1 Texas Instruments 1: NT$200.04 5,226In Stock	Mfr. Part # TPS40051QPWPRQ1 Mouser Part # 595-TPS40051QPWPRQ1	Texas Instruments	Switching Controllers AUTO CAT WIDE-INPUT SYNCH BUCK	Datasheet	5,226In Stock	Cut Tape NT$200.04 NT$176.74 NT$169.57 NT$157.02 View Reel NT$130.49 NT$149.49 NT$144.83 NT$143.40 NT$130.49 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 Wide In Non-Sync Buc k DC/DC Cntrlr TPS40200GDR Texas Instruments 1: NT$88.55 29,597In Stock	Mfr. Part # TPS40200GDR Mouser Part # 595-TPS40200GDR	Texas Instruments	Switching Controllers Wide In Non-Sync Buc k DC/DC Cntrlr	Datasheet	29,597In Stock	Cut Tape NT$88.55 NT$65.96 NT$60.23 NT$53.78 Reel NT$43.02 View NT$50.91 NT$49.11 NT$47.32 NT$42.30 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 3-28V In 20A Synch S tep Down Cntrlr A 5 A 595-TPS51218DSCT TPS51218DSCR Texas Instruments 1: NT$90.70 2,885In Stock	Mfr. Part # TPS51218DSCR Mouser Part # 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 NT$90.70 NT$67.40 NT$61.30 NT$55.21 Reel NT$46.25 View NT$51.98 NT$50.19 NT$48.76 NT$45.53 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: NT$62.74 2,830In Stock	Mfr. Part # TPS64200DBVR Mouser Part # 595-TPS64200DBVR	Texas Instruments	Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64200DBVT	Datasheet	2,830In Stock	Cut Tape NT$62.74 NT$46.25 NT$41.94 NT$37.64 Reel NT$30.87 View NT$35.10 NT$33.77 NT$33.59 NT$30.29 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 Synchronous Buck Con troller A 595-TPS40 A 595-TPS40077PWP TPS40077PWPR Texas Instruments 1: NT$148.06 2,050In Stock	Mfr. Part # TPS40077PWPR Mouser Part # 595-TPS40077PWPR	Texas Instruments	Switching Controllers Synchronous Buck Con troller A 595-TPS40 A 595-TPS40077PWP	Datasheet	2,050In Stock	Cut Tape NT$148.06 NT$112.21 NT$102.89 NT$93.21 View Reel NT$77.08 NT$88.19 NT$87.83 NT$82.81 NT$77.08 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: NT$45.89 2,963In Stock	Mfr. Part # TPS40304ADRCR Mouser Part # 595-TPS40304ADRCR	Texas Instruments	Switching Controllers 3V-20V Wide Inp Sync Buck Controller A 5 A 595-TPS40304ADRCT	Datasheet	2,963In Stock	Cut Tape NT$45.89 NT$39.79 NT$36.21 NT$32.01 Reel NT$26.96 View NT$30.08 NT$28.90 NT$28.54 NT$26.67 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 Sgl Sync SD Cntrlr A 595-TPS53014DGS A 5 A 595-TPS53014DGS TPS53014DGSR Texas Instruments 1: NT$95.00 2,148In Stock	Mfr. Part # TPS53014DGSR Mouser Part # 595-TPS53014DGSR	Texas Instruments	Switching Controllers Sgl Sync SD Cntrlr A 595-TPS53014DGS A 5 A 595-TPS53014DGS	Datasheet	2,148In Stock	Cut Tape NT$95.00 NT$70.98 NT$64.89 NT$58.08 Reel NT$48.04 View NT$54.85 NT$53.06 NT$51.27 NT$47.32 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 BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C43DGK UCC38C43DGKR Texas Instruments 1: NT$81.74 3,984In Stock	Mfr. Part # UCC38C43DGKR Mouser Part # 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	3,984In Stock	Cut Tape NT$81.74 NT$60.59 NT$55.21 NT$49.47 View Reel NT$42.30 NT$46.61 NT$45.17 NT$42.66 NT$42.30 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 Digitally enhanced power analog buck controller MCP19123T-E/MQ Microchip Technology 1: NT$214.02 3,299In Stock	Mfr. Part # MCP19123T-E/MQ Mouser Part # 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 NT$214.02 NT$178.53 Reel NT$162.04	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: NT$129.42 4,368In Stock	Mfr. Part # TPS40195RGYR Mouser Part # 595-TPS40195RGYR	Texas Instruments	Switching Controllers 4.5V-20V Buck Cntrlr A 595-TPS40195RGYT A 595-TPS40195RGYT	Datasheet	4,368In Stock	Cut Tape NT$129.42 NT$96.44 NT$88.19 NT$79.23 Reel NT$67.04 View NT$74.93 NT$73.13 NT$69.55 NT$65.96 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: NT$377.14 1,699In Stock	Mfr. Part # TPS5120DBTR Mouser Part # 595-TPS5120DBTR	Texas Instruments	Switching Controllers Dual Output 2-Ph Syn ch Buck Cntrlr A 59 A 595-TPS5120DBT	Datasheet	1,699In Stock	Cut Tape NT$377.14 NT$294.33 NT$273.89 NT$250.95 View Reel NT$217.25 NT$238.76 NT$234.10 NT$228.72 NT$217.25 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 Fixed-Freq Notebook Sys Pwr Cntrlr A 595 A 595-TPS51222RTVR TPS51222RTVT Texas Instruments 1: NT$402.60 208In Stock	Mfr. Part # TPS51222RTVT Mouser Part # 595-TPS51222RTVT	Texas Instruments	Switching Controllers Fixed-Freq Notebook Sys Pwr Cntrlr A 595 A 595-TPS51222RTVR	Datasheet	208In Stock	Cut Tape NT$402.60 NT$315.12 NT$293.25 NT$269.23 Reel NT$249.52 View NT$240.91 NT$238.04 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	2 Output	200 kHz to 1 MHz	99 %	1 V to 12 V	20 A	- 40 C	+ 85 C	SMD/SMT	WQFN-32		Reel, Cut Tape, MouseReel
Switching Controllers Wide Input Sync Buck Cntrlr source/sink A 595-TPS40061PWP TPS40061PWPR Texas Instruments 1: NT$149.85 1,627In Stock	Mfr. Part # TPS40061PWPR Mouser Part # 595-TPS40061PWPR	Texas Instruments	Switching Controllers Wide Input Sync Buck Cntrlr source/sink A 595-TPS40061PWP	Datasheet	1,627In Stock	Cut Tape NT$149.85 NT$120.10 NT$112.57 NT$103.97 View Reel NT$97.15 NT$97.87 NT$97.51 NT$97.15 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 BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40D UCC38C40DR Texas Instruments 1: NT$33.34 3,975In Stock	Mfr. Part # UCC38C40DR Mouser Part # 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	3,975In Stock	Cut Tape NT$33.34 NT$23.98 NT$21.62 NT$19.00 View Reel NT$14.91 NT$17.78 NT$17.03 NT$16.46 NT$14.91 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 Two-Phase Sync SD Sw itching Cntlr A 926 A 926-LM2642MTC/NOPB LM2642MTCX/NOPB Texas Instruments 1: NT$146.27 2,193In Stock	Mfr. Part # LM2642MTCX/NOPB Mouser Part # 926-LM2642MTCX/NOPB	Texas Instruments	Switching Controllers Two-Phase Sync SD Sw itching Cntlr A 926 A 926-LM2642MTC/NOPB	Datasheet	2,193In Stock	Cut Tape NT$146.27 NT$110.78 NT$101.81 NT$92.13 View Reel NT$77.44 NT$87.47 NT$86.76 NT$81.74 NT$77.44 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 Wide Input Range Syn c Buck Cntlr A 926- A 926-LM5117PMH/NOPB LM5117PMHE/NOPB Texas Instruments 1: NT$267.44 453In Stock	Mfr. Part # LM5117PMHE/NOPB Mouser Part # 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 NT$267.44 NT$206.50 NT$191.08 NT$174.23 Reel NT$150.21 NT$149.49 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: NT$90.34 3,384In Stock	Mfr. Part # UCC3802DTR Mouser Part # 595-UCC3802DTR	Texas Instruments	Switching Controllers Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3802D	Datasheet	3,384In Stock	Cut Tape NT$90.34 NT$67.04 NT$61.30 NT$54.85 View Reel NT$43.74 NT$51.98 NT$50.19 NT$48.40 NT$43.74 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: NT$98.23 1,087In Stock	Mfr. Part # LM2737MTC/NOPB Mouser Part # 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	1,087In Stock	NT$98.23 NT$73.13 NT$60.59 NT$57.36 View NT$56.28 NT$54.13 NT$52.70 NT$50.91 NT$49.83	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 40V Dual Low IQ, 100 DC Sync Buck CTL LTC7805RUFDM#TRPBF Analog Devices 1: NT$313.69 8,928In Stock	Mfr. Part # LTC7805RUFDM#TRPBF Mouser Part # 584-LTC7805RUFDMTRPB	Analog Devices	Switching Controllers 40V Dual Low IQ, 100 DC Sync Buck CTL Learn More about Analog Devices adi ltc7805 step down controller	Datasheet	8,928In Stock	Cut Tape NT$313.69 NT$245.93 NT$219.04 NT$205.78 NT$197.89 Reel NT$172.44 MouseReel Available	Min.: 1 Mult.: 1 Max.: 7,142 : 2,500	Boost, Buck	2 Output	3 MHz	100 %	800 mV to 40 V	180 uA	- 40 C	+ 150 C	SMD/SMT	QFN-28		Reel, Cut Tape, MouseReel
Switching Controllers Buck DC/DC Controller R1224N102M-TR-FE Nisshinbo 1: NT$55.21 3,093In Stock	Mfr. Part # R1224N102M-TR-FE Mouser Part # 848-R1224N102MTRFE	Nisshinbo	Switching Controllers Buck DC/DC Controller	Datasheet	3,093In Stock	Cut Tape NT$55.21 NT$40.51 NT$36.93 NT$32.52 Reel NT$25.31 View NT$30.54 NT$29.40 NT$26.53 NT$25.20 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	180 kHz	100 %	1 V to 18.5 V		- 40 C	+ 85 C	SMD/SMT	SOT-23-5		Reel, Cut Tape, MouseReel
Switching Controllers 2.2MHz Low Iq Sync B uck Controller A 59 A 595-LM25141QRGERQ1 LM25141QRGETQ1 Texas Instruments 1: NT$283.93 2,912In Stock	Mfr. Part # LM25141QRGETQ1 Mouser Part # 595-LM25141QRGETQ1	Texas Instruments	Switching Controllers 2.2MHz Low Iq Sync B uck Controller A 59 A 595-LM25141QRGERQ1 Learn More about Texas Instruments ti lm25141 controller	Datasheet	2,912In Stock	Cut Tape NT$283.93 NT$219.76 NT$203.63 NT$186.06 Reel NT$162.40 View NT$159.17 NT$157.02 NT$155.23 MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	2.2 MHz	99 %	1.5 V to 15 V	20 A	- 40 C	+ 150 C	SMD/SMT	VQFN-24	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers 4.5V to 20V Buck A 5 95-TPS40195PW A 595 A 595-TPS40195PW TPS40195PWR Texas Instruments 1: NT$125.48 2,344In Stock	Mfr. Part # TPS40195PWR Mouser Part # 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 NT$125.48 NT$94.64 NT$86.76 NT$78.15 View Reel NT$64.53 NT$74.21 NT$71.70 NT$69.55 NT$64.53 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: NT$62.74 2,555In Stock	Mfr. Part # TPS64202DBVR Mouser Part # 595-TPS64202DBVR	Texas Instruments	Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64202DBVT	Datasheet	2,555In Stock	Cut Tape NT$62.74 NT$46.25 NT$41.94 NT$37.64 Reel NT$31.33 View NT$35.13 NT$33.81 NT$32.70 NT$30.65 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 COOLSET ICE5AR3995BZXKLA1 Infineon Technologies 1: NT$59.51 1,680In Stock	Mfr. Part # ICE5AR3995BZXKLA1 Mouser Part # 726-ICE5AR3995BZXKLA	Infineon Technologies	Switching Controllers COOLSET Learn More about Infineon Technologies infineon fixed frequency coolset	Datasheet	1,680In Stock	NT$59.51 NT$43.74 NT$37.28 NT$35.28 View NT$33.20 NT$31.94 NT$30.87 NT$29.68 NT$29.00	Min.: 1 Mult.: 1	Buck, Flyback	1 Output	65 kHz	80 %	15 V		- 40 C	+ 150 C	Through Hole	DIP-7		Tube
Switching Controllers 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCR TPS40305DRCT Texas Instruments 1: NT$100.02 1,838In Stock	Mfr. Part # TPS40305DRCT Mouser Part # 595-TPS40305DRCT	Texas Instruments	Switching Controllers 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCR	Datasheet	1,838In Stock	Cut Tape NT$100.02 NT$74.57 NT$68.47 NT$61.30 Reel NT$52.70 NT$50.91 MouseReel Available	Min.: 1 Mult.: 1 : 250	Buck	1 Output	1.2 MHz	85 %	600 mV to 17 V	25 A	- 40 C	+ 125 C	SMD/SMT	VSON-10		Reel, Cut Tape, MouseReel