Switching Controllers – Mouser Dominican Republic

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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 (USD) 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: $235.90 390In Stock	Mfr. Part # TPS40200SHKJ Mouser Part # 595-TPS40200SHKJ	Texas Instruments	Switching Controllers Wide Inp Non-Sync Buck DC/DC Cntrlr	Datasheet	390In Stock	$235.90 $231.02 $204.79	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 AUTO CAT WIDE-INPUT SYNCH BUCK TPS40051QPWPRQ1 Texas Instruments 1: $6.79 5,213In Stock	Mfr. Part # TPS40051QPWPRQ1 Mouser Part # 595-TPS40051QPWPRQ1	Texas Instruments	Switching Controllers AUTO CAT WIDE-INPUT SYNCH BUCK	Datasheet	5,213In Stock	Cut Tape $6.79 $5.21 $4.81 $4.38 View Reel $3.64 $4.17 $4.04 $4.00 $3.64 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: $5.97 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 $5.97 $4.98 Reel $4.52	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 Commercial 30-V lo w -power current-mode UCC38C52DR Texas Instruments 1: $1.28 2,460In Stock	Mfr. Part # UCC38C52DR Mouser Part # 595-UCC38C52DR	Texas Instruments	Switching Controllers Commercial 30-V lo w -power current-mode Learn More about Texas Instruments ti uccx8c5x uccx8c5x q1 controllers	Datasheet	2,460In Stock	Cut Tape $1.28 $0.931 $0.843 $0.746 Reel $0.612 View $0.70 $0.672 $0.644 $0.595 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Buck, Flyback	1 Output	110 kHz	100 %		200 mA	0 C	+ 85 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers Dual Output 2-Ph Syn ch Buck Cntrlr A 59 A 595-TPS5120DBT TPS5120DBTR Texas Instruments 1: $10.52 1,574In 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	1,574In Stock	Cut Tape $10.52 $8.21 $7.64 $7.00 View Reel $6.06 $6.66 $6.53 $6.38 $6.06 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: $1.62 12,962In Stock	Mfr. Part # TPS64203DBVR Mouser Part # 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 $1.62 $1.21 $1.11 $0.998 Reel $0.823 View $0.945 $0.912 $0.907 $0.811 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 Speed PWM Contr oller A 595-UC2823A A 595-UC2823ADWTR UC2823ADW Texas Instruments 1: $30.63 111In Stock	Mfr. Part # UC2823ADW Mouser Part # 595-UC2823ADW	Texas Instruments	Switching Controllers High Speed PWM Contr oller A 595-UC2823A A 595-UC2823ADWTR	Datasheet	111In Stock	$30.63 $24.76 $20.14 $20.13 View $19.94 $19.90 Quote	Min.: 1 Mult.: 1	Boost, Buck, Flyback, Forward	1 Output	1 MHz	100 %	5.1 V	2 A	- 40 C	+ 85 C	SMD/SMT	SOIC-16		Tube
Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477MMX/NOPB LM3477MM/NOPB Texas Instruments 1: $3.39 1,138In Stock	Mfr. Part # LM3477MM/NOPB Mouser Part # 926-LM3477MM/NOPB	Texas Instruments	Switching Controllers High Efficiency High -Side N-Channel Con A 926-LM3477MMX/NOPB	Datasheet	1,138In Stock	Cut Tape $3.39 $2.53 $2.31 $2.07 View Reel $1.69 $1.96 $1.92 $1.69 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 Dual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs RT6585CGQW Richtek 1: $1.52 2,260In Stock	Mfr. Part # RT6585CGQW Mouser Part # 835-RT6585CGQW	Richtek	Switching Controllers Dual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs	Datasheet	2,260In Stock	Cut Tape $1.52 $1.11 $1.01 $0.909 Reel $0.737 View $0.854 $0.821 $0.812 $0.721	Min.: 1 Mult.: 1 : 3,000	Buck	4 Output	500 kHz, 600 kHz	98 %	Adjustable	100 mA	- 40 C	+ 125 C	SMD/SMT	WQFN-20		Reel, Cut Tape
Switching Controllers High Speed PWM Contr oller UC2823AN Texas Instruments 1: $34.17 66In Stock	Mfr. Part # UC2823AN Mouser Part # 595-UC2823AN	Texas Instruments	Switching Controllers High Speed PWM Contr oller	Datasheet	66In Stock	$34.17 $27.70 $22.81	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: $2.21 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 $2.21 $1.64 $1.49 $1.34 Reel $1.09 View $1.26 $1.22 $1.17 $1.07 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 Synchronous Buck Con troller A 595-TPS40 A 595-TPS40077PWP TPS40077PWPR Texas Instruments 1: $4.68 1,947In Stock	Mfr. Part # TPS40077PWPR Mouser Part # 595-TPS40077PWPR	Texas Instruments	Switching Controllers Synchronous Buck Con troller A 595-TPS40 A 595-TPS40077PWP	Datasheet	1,947In Stock	Cut Tape $4.68 $3.56 $3.28 $2.97 View Reel $2.47 $2.82 $2.65 $2.47 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: $2.12 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 $2.12 $1.95 $1.75 $1.65 Reel $1.49 View $1.62 $1.57 $1.46 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 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCR TPS40305DRCT Texas Instruments 1: $2.79 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 $2.79 $2.08 $1.91 $1.71 Reel $1.46 $1.41 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: $2.52 3,868In 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	3,868In Stock	Cut Tape $2.52 $1.88 $1.72 $1.54 Reel $1.39 View $1.45 $1.40 $1.31 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: $1.33 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 $1.33 $0.968 $0.877 $0.777 Reel $0.652 View $0.729 $0.70 $0.658 $0.631	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 Wide Input Range Syn c Buck Cntlr A 926- A 926-LM5117PMH/NOPB LM5117PMHE/NOPB Texas Instruments 1: $7.46 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 $7.46 $5.76 $5.33 $4.86 Reel $4.23 View $4.22 $4.19 $4.18 Quote 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 Adv Voltage Mode UCC35702D Texas Instruments 1: $11.58 264In Stock	Mfr. Part # UCC35702D Mouser Part # 595-UCC35702D	Texas Instruments	Switching Controllers Adv Voltage Mode	Datasheet	264In Stock	$11.58 $9.07 $8.06 $6.96 View $6.89 $6.86 Quote	Min.: 1 Mult.: 1	Boost, Buck	1 Output	700 kHz	99 %	9.6 V	1 A	0 C	+ 70 C	SMD/SMT	SOIC-14		Tube
Switching Controllers Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3802D UCC3802DTR Texas Instruments 1: $2.52 3,342In 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	3,342In Stock	Cut Tape $2.52 $1.87 $1.71 $1.53 View Reel $1.20 $1.45 $1.40 $1.35 $1.20 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 CONSTANT-CURRENT BUCK REGULATOR FOR DRIVING HIGH POWER LEDS NCV30161MNWTXG onsemi 1: $1.65 2,905In Stock	Mfr. Part # NCV30161MNWTXG Mouser Part # 863-NCV30161MNWTXG	onsemi	Switching Controllers CONSTANT-CURRENT BUCK REGULATOR FOR DRIVING HIGH POWER LEDS Learn More about onsemi energy storage solutions	Datasheet	2,905In Stock	Cut Tape $1.65 $1.21 $1.10 $0.969 View Reel $0.705 $0.91 $0.874 $0.83 $0.705 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	2.4 MHz	100 %	1.36 V		- 40 C	+ 125 C	SMD/SMT	DFNW-10		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: $2.74 1,089In 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	1,089In Stock	$2.74 $2.04 $1.69 $1.60 View $1.57 $1.51 $1.47 $1.42 $1.39	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 Digitally enhanced power analog buck controller MCP19122-E/MJ Microchip Technology 1: $5.55 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	$5.55 $4.63 $4.20	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 Fixed-Freq Notebook Sys Pwr Controller A A 595-TPS51220ARTVT TPS51220ARTVR Texas Instruments 1: $4.29 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 $4.29 $3.25 $2.99 $2.70 View Reel $2.32 $2.57 $2.49 $2.41 $2.32 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: $1.75 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 $1.75 $1.29 $1.17 $1.05 Reel $0.874 View $0.98 $0.943 $0.912 $0.855 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 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085AMME/NOPB LM25085AMM/NOPB Texas Instruments 1: $2.96 920In Stock	Mfr. Part # LM25085AMM/NOPB Mouser Part # 926-LM25085AMM/NOPB	Texas Instruments	Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085AMME/NOPB	Datasheet	920In Stock	Cut Tape $2.96 $2.22 $2.03 $1.82 Reel $1.55 View $1.72 $1.67 $1.54 $1.53 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Buck	1 Output	1 MHz	100 %	900 mV to 42 V	1.75 A	- 40 C	+ 125 C	SMD/SMT	VSSOP-8		Reel, Cut Tape, MouseReel