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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Qty. RoHS ECAD Model Topology
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Input Voltage
Output Voltage
Output Current
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Texas Instruments Switching Controllers 2.2MHz Low Iq Sync B uck Controller A 59 A 595-LM25141QRGERQ1
Datasheet
3.036In Stock
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
Texas Instruments Switching Controllers Low Pin Count Sync B uck DC/DC Cntrlr A A 595-TPS40190DRCT
Datasheet
14.173In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

Buck 1 Output 300 kHz 85 % 600 mV to 12.75 V 20 A - 40 C + 85 C SMD/SMT VSON-10 Reel, Cut Tape, MouseReel
Analog Devices Switching Controllers 150V L IQ, 2x, 2-PhSync Buck DC/DC Cntr
Datasheet
2.204In Stock
Min.: 1
Mult.: 1

Buck 2 Output 50 kHz to 750 kHz 100 % 1 V to 60 V 105 uA - 40 C + 150 C SMD/SMT LQFP-48 Tray
Texas Instruments Switching Controllers Automotive 2.2-MHz l ow-IQ synchronous b A 595-LM25141QRGETQ1
Datasheet
5.748In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

Buck 1 Output 440 kHz, 2.2 MHz 99 % 3.3 V, 5 V, 1.5 V to 15 V 20 A - 40 C + 150 C SMD/SMT VQFN-24 AEC-Q100 Reel, Cut Tape, MouseReel

Texas Instruments Switching Controllers AUTO CAT WIDE-INPUT SYNCH BUCK
Datasheet
5.517In Stock
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
Analog Devices / Maxim Integrated Switching Controllers Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7 A IQ and Optional Bypass Mode
Datasheet
5.844In Stock
Min.: 1
Mult.: 1

Buck 1 Output 220 kHz to 2.2 MHz 99 % 5 V - 40 C + 125 C SMD/SMT TQFN-EP-20 Tray
Infineon Technologies Switching Controllers COOLSET
Datasheet
1.930In Stock
Min.: 1
Mult.: 1
Buck, Flyback 1 Output 65 kHz 80 % 15 V - 40 C + 150 C Through Hole DIP-7 Tube
Texas Instruments Switching Controllers Wide In Non-Sync Buc k DC/DC Cntrlr
Datasheet
29.729In Stock
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
Analog Devices / Maxim Integrated Switching Controllers Low-Cost, Small, 4.5V to 28V Wide Operat
Datasheet
1.000In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

Buck 1 Output 200 kHz to 2 MHz 88 % 600 mV to 28 V 15 A - 40 C + 125 C SMD/SMT TDFN-EP-14 Reel, Cut Tape, MouseReel

Texas Instruments Switching Controllers Wide Vtg Range Buck- Boost Cntlr A 595-L A 595-LM25118Q1MH/NOPB
Datasheet
394In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

Boost, Buck 1 Output 500 kHz 80 % 1.23 V to 38 V 4 A - 40 C + 125 C SMD/SMT HTSSOP-20 AEC-Q100 Reel, Cut Tape, MouseReel

Texas Instruments Switching Controllers Wide Vtg Range Buck- Boost Cntlr A 595-L A 595-LM25118Q1MHENOPB
Datasheet
2.887In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

Boost, Buck 1 Output 500 kHz 80 % 1.23 V to 38 V 4 A - 40 C + 125 C SMD/SMT HTSSOP-20 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers 4.5V to 20V Buck A 5 95-TPS40195PW A 595 A 595-TPS40195PW
Datasheet
2.350In Stock
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
Texas Instruments Switching Controllers 3-20V Wide Input Syn ch Buck Cntrlr A 59 A 595-TPS40304DRCR
Datasheet
4.976In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

Buck 1 Output 600 kHz 90 % 600 mV to 18 V 25 A - 40 C + 125 C SMD/SMT VSON-10 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64202DBVT
Datasheet
2.561In Stock
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

Texas Instruments Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40DGK
Datasheet
1.820In Stock
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

Texas Instruments Switching Controllers 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085AMME/NOPB
Datasheet
920In Stock
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
Analog Devices Switching Controllers L IQ , 60V, Hi Freq Sync Buck Cntr
Datasheet
2.070In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

Buck 1 Output 320 kHz to 2.25 MHz 98 % 800 mV to 24 V 20 A - 40 C + 125 C SMD/SMT QFN-20 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCT
Datasheet
3.793In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

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
Texas Instruments Switching Controllers Dual DDR selectable Sync buck Controller A 595-TPS51020DBT
Datasheet
891In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.000

Buck 2 Output 450 kHz 88 % 900 mV 15 A - 40 C + 85 C SMD/SMT TSSOP-30 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers Fixed-Freq Notebook Sys Pwr Cntrlr A 595 A 595-TPS51222RTVR
Datasheet
318In Stock
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
Texas Instruments Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64203DBVT
Datasheet
7.627In Stock
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
Texas Instruments Switching Controllers High Speed PWM Contr oller A 595-UC3823A A 595-UC3823ADWTR
Datasheet
94In Stock
Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward 1 Output 1 MHz 100 % 5.1 V 2 A 0 C + 70 C SMD/SMT SOIC-16 Tube

Texas Instruments Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42DGKR
Datasheet
955In Stock
Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward 1 Output 1 MHz 100 % 18 V 1 A 0 C + 70 C SMD/SMT VSSOP-8 Tube
Texas Instruments Switching Controllers 3-V to 20-V voltage mode synchronous bu A 926-LM27402SQX/NOPB
Datasheet
1.189In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

Buck 1 Output 200 kHz to 1.2 MHz 95 % 600 mV to 18.6 V 30 A - 40 C + 125 C SMD/SMT WQFN-16 Reel, Cut Tape, MouseReel
Analog Devices Switching Controllers 60V Low IQ Buck Ctlr
Datasheet
659In Stock
Min.: 1
Mult.: 1

Buck 5 Output 1 MHz to 3 MHz 100 % 3.3 V, 5 V 8 A - 40 C + 125 C SMD/SMT QFN-48 Tube