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 Wide In Non-Sync Buc k DC/DC Cntrlr
Datasheet
29 704In 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

Texas Instruments Switching Controllers AUTO CAT WIDE-INPUT SYNCH BUCK
Datasheet
5 406In 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
Nisshinbo Switching Controllers Buck DC/DC Controller
Datasheet
3 093In Stock
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
Texas Instruments Switching Controllers 2.2MHz Low Iq Sync B uck Controller A 59 A 595-LM25141QRGERQ1
Datasheet
2 966In 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 4.5V to 20V Buck A 5 95-TPS40195PW A 595 A 595-TPS40195PW
Datasheet
2 344In 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 Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64202DBVT
Datasheet
2 556In 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 320In 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 High Perf Sync Buck Cntrlr A 926-LM27402 A 926-LM27402MH/NOPB
Datasheet
2 690In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

Buck 1 Output 200 kHz to 1.2 MHz 95 % 600 mV to 18.6 V 30 A - 40 C + 125 C SMD/SMT HTSSOP-16 Reel, Cut Tape, MouseReel
Microchip Technology Switching Controllers Digitally enhanced power analog buck controller
Datasheet
3 299In Stock
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
Texas Instruments Switching Controllers Dual Output 2-Ph Syn ch Buck Cntrlr A 59 A 595-TPS5120DBT
Datasheet
1 756In Stock
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
Texas Instruments Switching Controllers Fixed-Freq Notebook Sys Pwr Cntrlr A 595 A 595-TPS51222RTVR
Datasheet
298In 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 Synchronous Buck Con troller A 595-TPS40 A 595-TPS40077PWP
Datasheet
2 400In Stock
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
Texas Instruments Switching Controllers 3V-20V Wide Inp Sync Buck Controller A 5 A 595-TPS40304ADRCT
Datasheet
2 963In Stock
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

Texas Instruments Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C43DGK
Datasheet
4 009In 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 3-28V In 20A Synch S tep Down Cntrlr A 5 A 595-TPS51218DSCT
Datasheet
2 888In Stock
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
Texas Instruments Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64200DBVT
Datasheet
2 830In Stock
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

Texas Instruments Switching Controllers Wide Input Range Syn c Buck Cntlr A 926- A 926-LM5117PMH/NOPB
Datasheet
493In Stock
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
Texas Instruments Switching Controllers Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3802D
Datasheet
3 673In Stock
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
Texas Instruments Switching Controllers 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2737MTCX/NOPB
Datasheet
1 097In Stock
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

Texas Instruments Switching Controllers Wide Input Sync Buck Cntrlr source/sink A 595-TPS40061PWP
Datasheet
1 727In Stock
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
Texas Instruments Switching Controllers BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40D
Datasheet
4 000In 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 SOIC-8 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers Two-Phase Sync SD Sw itching Cntlr A 926 A 926-LM2642MTC/NOPB
Datasheet
2 193In Stock
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
Analog Devices / Maxim Integrated Switching Controllers Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7 A IQ and Optional Bypass Mode
Datasheet
5 574In Stock
Min.: 1
Mult.: 1
Max.: 5 674

Buck 1 Output 220 kHz to 2.2 MHz 99 % 5 V - 40 C + 125 C SMD/SMT TQFN-EP-20 Tray
Analog Devices Switching Controllers 40V Dual Low IQ, 100 DC Sync Buck CTL
Datasheet
8 928In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 8 928
: 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
Texas Instruments Switching Controllers High Speed PWM Contr oller
Datasheet
70In Stock
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