Switching Controllers – Mouser Japan

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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 (JPY) 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: ¥926.8 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 ¥926.8 ¥818.9 ¥785.7 ¥727.5 View Reel ¥604.6 ¥692.6 ¥671 ¥664.4 ¥604.6 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: ¥410.3 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 ¥410.3 ¥305.6 ¥279 ¥249.2 Reel ¥199.3 View ¥235.9 ¥227.6 ¥219.3 ¥196 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: ¥420.2 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 ¥420.2 ¥312.3 ¥284 ¥255.8 Reel ¥214.3 View ¥240.8 ¥232.5 ¥225.9 ¥210.9 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: ¥290.7 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 ¥290.7 ¥214.3 ¥194.3 ¥174.4 Reel ¥143 View ¥162.6 ¥156.5 ¥155.6 ¥140.4 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: ¥686 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 ¥686 ¥519.9 ¥476.7 ¥431.9 View Reel ¥357.1 ¥408.6 ¥406.9 ¥383.7 ¥357.1 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: ¥212.6 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 ¥212.6 ¥184.4 ¥167.8 ¥148.3 Reel ¥124.9 View ¥139.4 ¥133.9 ¥132.2 ¥123.6 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: ¥440.2 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 ¥440.2 ¥328.9 ¥300.6 ¥269.1 Reel ¥222.6 View ¥254.1 ¥245.8 ¥237.5 ¥219.3 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: ¥378.7 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 ¥378.7 ¥280.7 ¥255.8 ¥229.2 View Reel ¥196 ¥215.9 ¥209.3 ¥197.7 ¥196 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: ¥991.6 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 ¥991.6 ¥827.2 Reel ¥750.8	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: ¥599.6 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 ¥599.6 ¥446.8 ¥408.6 ¥367.1 Reel ¥310.6 View ¥347.1 ¥338.8 ¥322.2 ¥305.6 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: ¥1,747.4 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 ¥1,747.4 ¥1,363.7 ¥1,269 ¥1,162.7 View Reel ¥1,006.6 ¥1,106.2 ¥1,084.6 ¥1,059.7 ¥1,006.6 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: ¥1,865.3 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 ¥1,865.3 ¥1,460 ¥1,358.7 ¥1,247.4 Reel ¥1,156.1 View ¥1,116.2 ¥1,102.9 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: ¥694.3 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 ¥694.3 ¥556.4 ¥521.6 ¥481.7 View Reel ¥450.1 ¥453.5 ¥451.8 ¥450.1 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: ¥154.5 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 ¥154.5 ¥111.1 ¥100.2 ¥88 View Reel ¥69.1 ¥82.4 ¥78.9 ¥76.2 ¥69.1 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: ¥677.7 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 ¥677.7 ¥513.2 ¥471.7 ¥426.9 View Reel ¥358.8 ¥405.3 ¥402 ¥378.7 ¥358.8 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: ¥1,239.1 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 ¥1,239.1 ¥956.7 ¥885.3 ¥807.2 Reel ¥696 ¥692.6 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: ¥418.6 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 ¥418.6 ¥310.6 ¥284 ¥254.1 View Reel ¥202.6 ¥240.8 ¥232.5 ¥224.2 ¥202.6 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: ¥455.1 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	¥455.1 ¥338.8 ¥280.7 ¥265.8 View ¥260.8 ¥250.8 ¥244.2 ¥235.9 ¥230.9	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: ¥1,453.4 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 ¥1,453.4 ¥1,139.4 ¥1,014.9 ¥953.4 ¥916.9 Reel ¥798.9 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: ¥255.8 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 ¥255.8 ¥187.7 ¥171.1 ¥150.7 Reel ¥117.3 View ¥141.5 ¥136.2 ¥122.9 ¥116.8 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: ¥1,315.5 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 ¥1,315.5 ¥1,018.2 ¥943.4 ¥862.1 Reel ¥752.4 View ¥737.5 ¥727.5 ¥719.2 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: ¥581.4 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 ¥581.4 ¥438.5 ¥402 ¥362.1 View Reel ¥299 ¥343.8 ¥332.2 ¥322.2 ¥299 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: ¥290.7 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 ¥290.7 ¥214.3 ¥194.3 ¥174.4 Reel ¥145.2 View ¥162.8 ¥156.6 ¥151.5 ¥142 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: ¥275.7 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	¥275.7 ¥202.6 ¥172.7 ¥163.4 View ¥153.8 ¥148 ¥143 ¥137.5 ¥134.4	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: ¥463.4 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 ¥463.4 ¥345.5 ¥317.3 ¥284 Reel ¥244.2 ¥235.9 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