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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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
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Output Current
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Analog Devices / Maxim Integrated Switching Controllers Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7 A IQ and Optional Bypass Mode
Datasheet
5 850In 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

Texas Instruments Switching Controllers AUTO CAT WIDE-INPUT SYNCH BUCK
Datasheet
5 540In 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 Switching Controllers 150V L IQ, 2x, 2-PhSync Buck DC/DC Cntr
Datasheet
2 209In 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 42-V automotive sync hronous buck DC/DC
Datasheet
3 218In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Buck 1 Output 2.2 MHz 100 % 800 mV to 36 V 20 A - 40 C + 150 C SMD/SMT VQFN-24 Reel, Cut Tape, MouseReel
Analog Devices Switching Controllers 03-5 Amp non synchronous buck controller
Datasheet
10 058In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Buck 1 Output 580 kHz 100 % 800 mV to 14 V 5 A - 40 C + 125 C SMD/SMT TSOT-6 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers Wide In Non-Sync Buc k DC/DC Cntrlr
Datasheet
29 811In 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
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
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
396In 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 914In 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 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
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 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 PP, Hi Eff, Sync Buck Sw Reg
Datasheet
770In Stock
Min.: 1
Mult.: 1

Buck 2 Output 300 kHz 99 % 1.26 V to 2.5 V 240 A 0 C + 70 C SMD/SMT SSOP-28 Tube
Texas Instruments Switching Controllers 3-20V Wide Input Syn c Buck Controller A A 595-TPS40303DRCT
Datasheet
6 866In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

Buck 1 Output 300 kHz 90 % 600 mV to 18 V 10 A - 40 C + 125 C SMD/SMT VSON-10 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers High Speed PWM Contr oller
Datasheet
74In 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
Texas Instruments Switching Controllers Low Power Economy Bi CMOS Current Mode A A 595-UCC3813D-3
Datasheet
2 094In Stock
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
Analog Devices / Maxim Integrated Switching Controllers 5V/3.3V or Adjustable, 100 Duty Cycle,
Datasheet
2 197In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

Buck 1 Output 300 kHz 100 % 1.3 V to 16 V 3 A - 40 C + 85 C SMD/SMT SOIC-Narrow-8 Reel, Cut Tape, MouseReel
Nisshinbo Switching Controllers Buck DC/DC Controller
Datasheet
3 103In 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
Microchip Technology Switching Controllers Monolithic SMPS Controller
Datasheet
2 282In Stock
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
Analog Devices Switching Controllers L IQ , 60V, Hi Freq Sync Buck Cntr
Datasheet
2 072In 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
Analog Devices Switching Controllers GSM Power Management System
Datasheet
999In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 000

Boost, Buck 1 Output 300 kHz 98 % 5 mA - 40 C + 125 C SMD/SMT TSSOP-16 Reel, Cut Tape, MouseReel