Switching Controllers – Mouser Korea, Republic of

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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 (KRW) 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: ₩332,430.3 390In Stock	Mfr. Part # TPS40200SHKJ Mouser Part # 595-TPS40200SHKJ	Texas Instruments	Switching Controllers Wide Inp Non-Sync Buck DC/DC Cntrlr	Datasheet	390In Stock	₩332,430.3 ₩325,553.4 ₩291,986.2	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: ₩3,480.7 24,227In Stock	Mfr. Part # TPS40200GDR Mouser Part # 595-TPS40200GDR	Texas Instruments	Switching Controllers Wide In Non-Sync Buc k DC/DC Cntrlr	Datasheet	24,227In Stock	Cut Tape ₩3,480.7 ₩2,592.9 ₩2,367.5 ₩2,113.8 Reel ₩1,733.3 View ₩2,001.1 ₩1,930.6 ₩1,860.1 ₩1,691 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: ₩9,568.5 5,223In Stock	Mfr. Part # TPS40051QPWPRQ1 Mouser Part # 595-TPS40051QPWPRQ1	Texas Instruments	Switching Controllers AUTO CAT WIDE-INPUT SYNCH BUCK	Datasheet	5,223In Stock	Cut Tape ₩9,568.5 ₩7,341.9 ₩6,778.3 ₩6,172.3 View Reel ₩5,284.5 ₩5,876.4 ₩5,693.2 ₩5,636.8 ₩5,284.5 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: ₩8,412.9 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 ₩8,412.9 ₩7,017.8 Reel ₩6,369.6	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 40V Dual Low IQ, 100 DC Sync Buck CTL LTC7805RUFDM#TRPBF Analog Devices 1: ₩6,975.5 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 ₩6,975.5 ₩6,820.5 ₩6,679.6 ₩6,538.7 View Reel ₩6,158.2 ₩6,440 ₩6,341.4 ₩6,242.8 ₩6,158.2 MouseReel Available	Min.: 1 Mult.: 1 : 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 Synchronous Buck Con troller A 595-TPS40 A 595-TPS40077PWP TPS40077PWPR Texas Instruments 1: ₩6,595.1 2,047In Stock	Mfr. Part # TPS40077PWPR Mouser Part # 595-TPS40077PWPR	Texas Instruments	Switching Controllers Synchronous Buck Con troller A 595-TPS40 A 595-TPS40077PWP	Datasheet	2,047In Stock	Cut Tape ₩6,595.1 ₩5,016.8 ₩4,622.2 ₩4,185.3 View Reel ₩3,424.4 ₩3,973.9 ₩3,734.4 ₩3,424.4 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 Wide-Inp-Rng Nonsync Vltg-Mode Cntrlr TPS40200QDRQ1 Texas Instruments 1: ₩3,241.2 2,034In Stock	Mfr. Part # TPS40200QDRQ1 Mouser Part # 595-TPS40200QDRQ1	Texas Instruments	Switching Controllers Wide-Inp-Rng Nonsync Vltg-Mode Cntrlr	Datasheet	2,034In Stock	Cut Tape ₩3,241.2 ₩3,001.6 ₩2,747.9 ₩2,466.1 Reel ₩2,099.7 View ₩2,325.2 ₩2,282.9 ₩2,212.4 ₩2,057.4 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	+ 125 C	SMD/SMT	SOIC-8	AEC-Q100	Reel, Cut Tape, MouseReel
Switching Controllers 3V-20V Wide Inp Sync Buck Controller A 5 A 595-TPS40304ADRCT TPS40304ADRCR Texas Instruments 1: ₩1,916.5 2,961In 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	2,961In Stock	Cut Tape ₩1,916.5 ₩1,564.2 ₩1,423.3 ₩1,258.4 Reel ₩1,059.7 View ₩1,182.3 ₩1,135.8 ₩1,121.7 ₩1,048.4 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 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCR TPS40305DRCT Texas Instruments 1: ₩3,931.7 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 ₩3,931.7 ₩2,931.1 ₩2,691.6 ₩2,409.7 Reel ₩2,071.5 ₩2,001.1 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
Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C43DGK UCC38C43DGKR Texas Instruments 1: ₩2,846.6 3,881In 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	3,881In Stock	Cut Tape ₩2,846.6 ₩2,649.3 ₩2,423.8 ₩2,170.2 Reel ₩1,846.1 View ₩2,043.3 ₩1,972.9 ₩1,902.4 ₩1,803.8 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 Dual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs RT6575BGQW Richtek 1: ₩1,874.2 2,890In Stock	Mfr. Part # RT6575BGQW Mouser Part # 835-RT6575BGQW	Richtek	Switching Controllers Dual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs	Datasheet	2,890In Stock	Cut Tape ₩1,874.2 ₩1,364.1 ₩1,235.9 ₩1,094.9 Reel ₩918.8 View ₩1,027.3 ₩986.4 ₩927.3 ₩889.2	Min.: 1 Mult.: 1 : 1,500	Buck	4 Output	300 kHz, 355 kHz	98 %	Adjustable	100 mA	- 40 C	+ 85 C	SMD/SMT	WQFN-20		Reel, Cut Tape
Switching Controllers 75V DC-DC Buck Controller with HLL MIC2103YML-TR Microchip Technology 1: ₩2,621.1 1,616In Stock	Mfr. Part # MIC2103YML-TR Mouser Part # 998-MIC2103YMLTR	Microchip Technology	Switching Controllers 75V DC-DC Buck Controller with HLL	Datasheet	1,616In Stock	Cut Tape ₩2,621.1 ₩2,212.4 Reel ₩1,972.9 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	Buck	1 Output	200 kHz to 600 kHz	85 %	800 mV to 24 V	15 A	- 40 C	+ 125 C	SMD/SMT	MLF-16		Reel, Cut Tape, MouseReel
Switching Controllers High Speed PWM Contr oller UC2823AN Texas Instruments 1: ₩48,208.7 66In Stock	Mfr. Part # UC2823AN Mouser Part # 595-UC2823AN	Texas Instruments	Switching Controllers High Speed PWM Contr oller	Datasheet	66In Stock	₩48,208.7 ₩39,063 ₩33,412.1 ₩32,468 View ₩32,453.9 Quote	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	2 Output	1 MHz	100 %	5.1 V	2 A	- 40 C	+ 85 C	Through Hole	PDIP-16		Tube
Switching Controllers Low Power Economy Bi CMOS Current Mode A A 595-UCC3813D-3 UCC3813DTR-3 Texas Instruments 1: ₩3,114.3 1,855In Stock	Mfr. Part # UCC3813DTR-3 Mouser Part # 595-UCC3813DTR-3	Texas Instruments	Switching Controllers Low Power Economy Bi CMOS Current Mode A A 595-UCC3813D-3	Datasheet	1,855In Stock	Cut Tape ₩3,114.3 ₩2,311.1 ₩2,099.7 ₩1,888.3 Reel ₩1,536 View ₩1,775.6 ₩1,719.2 ₩1,648.8 ₩1,507.8 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Buck, Flyback, Forward	1 Output	1 MHz	100 %	4.1 V	1 A	0 C	+ 70 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers Wide Input Sync Buck Cntrlr source/sink A 595-TPS40061PWP TPS40061PWPR Texas Instruments 1: ₩6,975.5 1,562In Stock	Mfr. Part # TPS40061PWPR Mouser Part # 595-TPS40061PWPR	Texas Instruments	Switching Controllers Wide Input Sync Buck Cntrlr source/sink A 595-TPS40061PWP	Datasheet	1,562In Stock	Cut Tape ₩6,975.5 ₩5,510 ₩5,129.5 ₩4,664.5 Reel ₩4,608.1 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 High Speed PWM Contr oller A 595-UC2823D A 595-UC2823DWTR UC2823DW Texas Instruments 1: ₩20,757.5 199In Stock	Mfr. Part # UC2823DW Mouser Part # 595-UC2823DW	Texas Instruments	Switching Controllers High Speed PWM Contr oller A 595-UC2823D A 595-UC2823DWTR	Datasheet	199In Stock	₩20,757.5 ₩16,389 ₩14,838.9 ₩13,951.1 View ₩13,443.8 ₩13,147.8 ₩12,880.1 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: ₩1,310.6 3,965In 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	3,965In Stock	Cut Tape ₩1,310.6 ₩942.8 ₩849.7 ₩746.9 View Reel ₩586.2 ₩699 ₩669.4 ₩646.8 ₩586.2 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 16V Step-Down DCDC Controller XC9221A09AMR-G Torex Semiconductor 1: ₩1,916.5 2,650In Stock	Mfr. Part # XC9221A09AMR-G Mouser Part # 865-XC9221A09AMR-G	Torex Semiconductor	Switching Controllers 16V Step-Down DCDC Controller Learn More about Torex Semiconductor torex xc92x dc dc step down controller ics	Datasheet	2,650In Stock	Cut Tape ₩1,916.5 ₩1,392.3 ₩1,262.6 ₩1,127.4 Reel ₩930.1 View ₩1,055.5 ₩1,013.2 ₩968.1 ₩910.3 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	1 MHz	100 %	1.2 V	3 A	- 40 C	+ 85 C	SMD/SMT	SOT-25-5		Reel, Cut Tape, MouseReel
Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477MM/NOPB LM3477MMX/NOPB Texas Instruments 1: ₩3,959.9 4,003In Stock	Mfr. Part # LM3477MMX/NOPB Mouser Part # 926-LM3477MMX/NOPB	Texas Instruments	Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477MM/NOPB	Datasheet	4,003In Stock	Cut Tape ₩3,959.9 ₩2,959.3 ₩2,705.7 ₩2,423.8 Reel ₩1,958.8 View ₩2,297 ₩2,254.7 ₩2,142 ₩1,902.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	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 4V-40V Input Current Mode Sync StpDwn Co MP2918GL-Z Monolithic Power Systems (MPS) 1: ₩2,677.5 10,000In Stock	Mfr. Part # MP2918GL-Z Mouser Part # 946-MP2918GL-Z	Monolithic Power Systems (MPS)	Switching Controllers 4V-40V Input Current Mode Sync StpDwn Co	Datasheet	10,000In Stock	Cut Tape ₩2,677.5 ₩1,972.9 ₩1,789.7 ₩1,592.4 View Reel ₩1,321.8 ₩1,507.8 ₩1,451.5 ₩1,437.4 ₩1,354.2 ₩1,321.8 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	Buck	1 Output	430 kHz	99.5 %	25 V	13.2 uA	- 40 C	+ 125 C	SMD/SMT	QFN-20		Reel, Cut Tape, MouseReel
Switching Controllers 38V DC-DC Buck Controller with HLL MIC2101YML-TR Microchip Technology 1: ₩2,099.7 6,966In Stock	Mfr. Part # MIC2101YML-TR Mouser Part # 998-MIC2101YMLTR	Microchip Technology	Switching Controllers 38V DC-DC Buck Controller with HLL	Datasheet	6,966In Stock	Cut Tape ₩2,099.7 Reel ₩1,761.5 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	Buck	1 Output	200 kHz to 600 kHz	85 %	800 mV to 24 V	15 A	- 40 C	+ 125 C	SMD/SMT	MLF-16		Reel, Cut Tape, MouseReel
Switching Controllers Digitally enhanced power analog buck controller MCP19122-E/MJ Microchip Technology 1: ₩7,821.1 359In Stock	Mfr. Part # MCP19122-E/MJ Mouser Part # 579-MCP19122-E/MJ	Microchip Technology	Switching Controllers Digitally enhanced power analog buck controller Learn More about Microchip Technology microchip mcp19122 mcp19123 controllers	Datasheet	359In Stock	₩7,821.1 ₩6,524.6 ₩5,918.6	Min.: 1 Mult.: 1	Buck	1 Output	100 kHz to 1.6 MHz	100 %	300 mV to 16 V	4 A	- 40 C	+ 125 C	SMD/SMT	QFN-24		Tube
Switching Controllers 4.5V to 20V Buck A 5 95-TPS40195PW A 595 A 595-TPS40195PW TPS40195PWR Texas Instruments 1: ₩4,932.2 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 ₩4,932.2 ₩3,720.3 ₩3,410.3 ₩3,072.1 View Reel ₩2,564.7 ₩2,917 ₩2,818.4 ₩2,733.8 ₩2,564.7 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 Fixed-Freq Notebook Sys Pwr Controller A A 595-TPS51220ARTVT TPS51220ARTVR Texas Instruments 1: ₩6,045.5 2,170In Stock	Mfr. Part # TPS51220ARTVR Mouser Part # 595-TPS51220ARTVR	Texas Instruments	Switching Controllers Fixed-Freq Notebook Sys Pwr Controller A A 595-TPS51220ARTVT	Datasheet	2,170In Stock	Cut Tape ₩6,045.5 ₩4,579.9 ₩4,213.5 ₩3,804.8 View Reel ₩3,269.3 ₩3,621.6 ₩3,508.9 ₩3,396.2 ₩3,269.3 Quote 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		Reel, Cut Tape, MouseReel
Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64202DBVT TPS64202DBVR Texas Instruments 1: ₩2,466.1 2,520In 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	2,520In Stock	Cut Tape ₩2,466.1 ₩1,817.9 ₩1,648.8 ₩1,479.7 Reel ₩1,231.6 View ₩1,381 ₩1,328.9 ₩1,285.2 ₩1,204.9 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