Switching Controllers – Mouser Mexico

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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: $306.67 390In Stock	Mfr. Part # TPS40200SHKJ Mouser Part # 595-TPS40200SHKJ	Texas Instruments	Switching Controllers Wide Inp Non-Sync Buck DC/DC Cntrlr	Datasheet	390In Stock	$306.67 $300.33 $269.36	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: $8.83 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 $8.83 $6.77 $6.25 $5.69 View Reel $4.88 $5.42 $5.25 $5.20 $4.88 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: $3.21 29,316In Stock	Mfr. Part # TPS40200GDR Mouser Part # 595-TPS40200GDR	Texas Instruments	Switching Controllers Wide In Non-Sync Buc k DC/DC Cntrlr	Datasheet	29,316In Stock	Cut Tape $3.21 $2.39 $2.18 $1.95 Reel $1.60 View $1.85 $1.78 $1.72 $1.56 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 Digitally enhanced power analog buck controller MCP19123T-E/MQ Microchip Technology 1: $7.76 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 $7.76 $6.47 Reel $5.88	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: $6.44 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 $6.44 $6.29 $6.16 $6.03 View Reel $5.68 $5.94 $5.85 $5.76 $5.68 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 Wide Input Range Syn c Buck Cntlr A 926- A 926-LM5117PMH/NOPB LM5117PMHE/NOPB Texas Instruments 1: $9.70 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 $9.70 $7.49 $6.93 $6.32 Reel $5.53 View $5.49 $5.42 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 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40192DRCT TPS40192DRCR Texas Instruments 1: $3.76 4,740In Stock	Mfr. Part # TPS40192DRCR Mouser Part # 595-TPS40192DRCR	Texas Instruments	Switching Controllers 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40192DRCT	Datasheet	4,740In Stock	Cut Tape $3.76 $2.81 $2.57 $2.31 View Reel $1.89 $2.18 $2.11 $2.03 $1.89 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Buck	1 Output	600 kHz	85 %	591 mV to 14.4 V	20 A	- 40 C	+ 85 C	SMD/SMT	VSON-10		Reel, Cut Tape, MouseReel
Switching Controllers Adv Voltage Mode UCC35702D Texas Instruments 1: $15.05 274In Stock	Mfr. Part # UCC35702D Mouser Part # 595-UCC35702D	Texas Instruments	Switching Controllers Adv Voltage Mode	Datasheet	274In Stock	$15.05 $11.79 $10.48 $9.14 View $9.04 $8.96 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: $3.28 3,347In 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	3,347In Stock	Cut Tape $3.28 $2.43 $2.22 $1.99 View Reel $1.59 $1.89 $1.82 $1.76 $1.59 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: $2.15 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 $2.15 $1.57 $1.43 $1.26 View Reel $0.978 $1.18 $1.14 $1.12 $0.978 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: $3.56 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	$3.56 $2.65 $2.20 $2.08 View $2.04 $1.96 $1.91 $1.85 $1.81	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 Synchronous Buck Con troller A 595-TPS40 A 595-TPS40077PWP TPS40077PWPR Texas Instruments 1: $6.08 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 $6.08 $4.63 $4.26 $3.86 View Reel $3.16 $3.67 $3.45 $3.16 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: $3.69 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 $3.69 $2.77 $2.54 $2.28 Reel $1.94 View $2.15 $2.11 $2.04 $1.90 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: $1.77 2,896In 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	2,896In Stock	Cut Tape $1.77 $1.44 $1.31 $1.16 Reel $0.978 View $1.09 $1.05 $1.03 $0.967 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: $3.63 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 $3.63 $2.70 $2.48 $2.22 Reel $1.91 $1.85 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: $2.63 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 $2.63 $2.44 $2.24 $2.00 Reel $1.70 View $1.89 $1.82 $1.76 $1.66 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: $1.73 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 $1.73 $1.26 $1.14 $1.01 Reel $0.848 View $0.948 $0.91 $0.855 $0.82	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: $2.41 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 $2.41 $2.04 Reel $1.82 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 COOLSET ICE5AR3995BZXKLA1 Infineon Technologies 1: $2.16 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	$2.16 $1.59 $1.35 $1.28 View $1.20 $1.16 $1.12 $1.08 $1.05	Min.: 1 Mult.: 1	Buck, Flyback	1 Output	65 kHz	80 %	15 V		- 40 C	+ 150 C	Through Hole	DIP-7		Tube
Switching Controllers High Speed PWM Contr oller UC2823AN Texas Instruments 1: $44.47 66In Stock	Mfr. Part # UC2823AN Mouser Part # 595-UC2823AN	Texas Instruments	Switching Controllers High Speed PWM Contr oller	Datasheet	66In Stock	$44.47 $36.04 $30.82 $29.95 View $29.94 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: $2.87 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 $2.87 $2.13 $1.94 $1.74 Reel $1.42 View $1.64 $1.59 $1.52 $1.39 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 Monolithic SMPS Controller MIC38C43YM-TR Microchip Technology 1: $1.66 2,182In Stock	Mfr. Part # MIC38C43YM-TR Mouser Part # 998-MIC38C43YMTR	Microchip Technology	Switching Controllers Monolithic SMPS Controller	Datasheet	2,182In Stock	Cut Tape $1.66 $1.64 Reel $1.33 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Boost, Buck, Flyback, Forward	1 Output	500 kHz	96 %	5 V	500 mA	- 40 C	+ 85 C	SMD/SMT	SOIC-8		Reel, Cut Tape, MouseReel
Switching Controllers 4.5V-20V Buck Cntrlr A 595-TPS40195RGYT A 595-TPS40195RGYT TPS40195RGYR Texas Instruments 1: $4.69 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 $4.69 $3.50 $3.20 $2.87 Reel $2.43 View $2.72 $2.65 $2.52 $2.39 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: $13.68 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 $13.68 $10.67 $9.93 $9.10 View Reel $7.88 $8.66 $8.49 $8.29 $7.88 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: $2.11 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 $2.11 $1.57 $1.44 $1.30 Reel $1.14 View $1.23 $1.19 $1.18 $1.11 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