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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Texas Instruments Perjungimo valdikliai 42V On-Time PFET Buc k Switch Cntlr A 92 A 926-LM25085MME/NOPB 735Prieinamumas
1 000Tikėtina 2026-12-24
Min.: 1
Daugkart.: 1
: 1 000

Buck 1 Output 1 MHz 100 % 1.25 V to 42 V 1.75 A - 40 C + 125 C SMD/SMT VSSOP-8 Reel, Cut Tape, MouseReel

Texas Instruments Perjungimo valdikliai 42V Constant PFET Bu ck Switch Cntlr A 9 A 926-LM25085MM/NOPB 126Prieinamumas
Min.: 1
Daugkart.: 1
: 250

Buck 1 Output 1 MHz 100 % 1.25 V to 42 V 1.75 A - 40 C + 125 C SMD/SMT VSSOP-8 Reel, Cut Tape, MouseReel

Texas Instruments Perjungimo valdikliai 42V Constant On-Time PFET Switching Cntl A 926-LM25085QMY/NOPB 16Prieinamumas
Min.: 1
Daugkart.: 1
: 250

Buck 1 Output 1 MHz 100 % 1.25 V to 42 V 1.75 A - 40 C + 125 C SMD/SMT MSOP-PowerPad-8 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Perjungimo valdikliai 42V Constant On-Time PFET Switching Cntl A 926-LM25085SD/NOPB 132Prieinamumas
Min.: 1
Daugkart.: 1
: 250

Buck 1 Output 1 MHz 100 % 1.25 V to 42 V 1.75 A - 40 C + 125 C SMD/SMT LLP-8 Reel, Cut Tape, MouseReel

Texas Instruments Perjungimo valdikliai Wide Vltg Range Buck Boost Cntrlr A 926- A 926-LM25118MHE/NOPB 224Prieinamumas
Min.: 1
Daugkart.: 1

Boost, Buck 1 Output 500 kHz 80 % 1.23 V to 38 V 3.5 A - 40 C + 125 C SMD/SMT HTSSOP-20 Tube

Texas Instruments Perjungimo valdikliai Wide Vltg Range Buck Boost Cntrlr A 926- A 926-LM25118MH/NOPB 48Prieinamumas
500Tikėtina 2026-08-31
Min.: 1
Daugkart.: 1
: 250

Boost, Buck 1 Output 500 kHz 80 % 1.23 V to 38 V 3.5 A - 40 C + 125 C SMD/SMT HTSSOP-20 Reel, Cut Tape, MouseReel

Texas Instruments Perjungimo valdikliai Wide Vltg Range Buck Boost Cntrlr A 926- A 926-LM25118MHE/NOPB 27Prieinamumas
5 000Tikėtina 2026-11-05
Min.: 1
Daugkart.: 1
: 2 500

Boost, Buck 1 Output 500 kHz 80 % 1.23 V to 38 V 3.5 A - 40 C + 125 C SMD/SMT HTSSOP-20 Reel, Cut Tape, MouseReel
Texas Instruments Perjungimo valdikliai Lo Vtg N-Ch MOSFET S ync Buck Reg Cntlr A 926-LM2743MTCX/NOPB 3Prieinamumas
Min.: 1
Daugkart.: 1

Buck 1 Output 50 kHz to 1 MHz 80 % Adjustable 4 A - 40 C + 125 C SMD/SMT TSSOP-14 Tube

Texas Instruments Perjungimo valdikliai 6V to 42V Synchronou s Step-Down Control A 926-LM3150MHE/NOPB 2Prieinamumas
7 500Tikėtina 2026-08-24
Min.: 1
Daugkart.: 1
: 2 500

Buck 1 Output 1 MHz 96 % 600 mV 12 A - 40 C + 125 C SMD/SMT HTSSOP-14 Reel, Cut Tape, MouseReel

Texas Instruments Perjungimo valdikliai Hysteretic PFET Buck Cntlr A 926-LM3485M A 926-LM3485MM/NOPB 646Prieinamumas
3 500Pagal užsakymą
Min.: 1
Daugkart.: 1
: 3 500

Buck 1 Output 50 kHz to 1 MHz 100 % 1.242 V to 35 V 4 A - 40 C + 125 C SMD/SMT VSSOP-8 Reel, Cut Tape, MouseReel

Texas Instruments Perjungimo valdikliai Automotive Grade 4.5 -35V Hysteretic Non 701Prieinamumas
Min.: 1
Daugkart.: 1
: 1 000

Buck 1 Output 50 kHz to 1 MHz 100 % 1.242 V to 35 V 4 A - 40 C + 125 C SMD/SMT VSSOP-8 AEC-Q100 Reel, Cut Tape, MouseReel

Texas Instruments Perjungimo valdikliai Automotive Grade 4.5 -75V Wide Vin Const A 926-LM5085QMYE/NOPB 364Prieinamumas
3 000Pagal užsakymą
Min.: 1
Daugkart.: 1
: 1 000

Buck 1 Output 1 MHz 100 % 1.25 V to 75 V 1.75 A - 40 C + 125 C SMD/SMT MSOP-PowerPad-8 AEC-Q100 Reel, Cut Tape, MouseReel

Texas Instruments Perjungimo valdikliai 75V Constant PFET Bu ck Switch Cntlr A 9 A 926-LM5085QMY/NOPB 362Prieinamumas
Min.: 1
Daugkart.: 1
: 250

Buck 1 Output 1 MHz 100 % 1.25 V to 75 V 1.75 A - 40 C + 125 C SMD/SMT MSOP-PowerPad-8 AEC-Q100 Reel, Cut Tape, MouseReel
Monolithic Power Systems (MPS) Perjungimo valdikliai 4V-60V Input, Curren t Mode, Synchronous 110Prieinamumas
5 000Tikėtina 2027-01-11
Min.: 1
Daugkart.: 1
: 2 500

Buck 1 Output 300 kHz 99.5 % 24 V - 40 C + 125 C SMD/SMT TSSOP-20 Reel, Cut Tape
Microchip Technology Perjungimo valdikliai 75V DC-DC Buck Controller with HSC 175Prieinamumas
5 000Tikėtina 2026-10-26
Min.: 1
Daugkart.: 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

Microchip Technology Perjungimo valdikliai 76V Synchronous Buck Controller 70Prieinamumas
Min.: 1
Daugkart.: 1

Buck 1 Output 100 kHz 96 % Adjustable 15 A - 40 C + 125 C SMD/SMT MSOP-10 Tube

Microchip Technology Perjungimo valdikliai 76V Synchronous Buck Controller 5Prieinamumas
200Tikėtina 2026-08-31
Min.: 1
Daugkart.: 1

Buck 1 Output 100 kHz 96 % Adjustable 15 A - 40 C + 125 C SMD/SMT MSOP-10 Tube

Microchip Technology Perjungimo valdikliai 3V Buck Contoller 175Prieinamumas
Min.: 1
Daugkart.: 1

Buck 1 Output 400 kHz 100 % Adjustable - 40 C + 125 C SMD/SMT SOP-8 Tube
Microchip Technology Perjungimo valdikliai 300KHz Sync Buck Controller 147Prieinamumas
Min.: 1
Daugkart.: 1

Buck 1 Output 300 kHz 85 % 800 mV to 6 V 20 A - 40 C + 125 C SMD/SMT MLF-12 Tube
Microchip Technology Perjungimo valdikliai Monolithic SMPS Controller 204Prieinamumas
Min.: 1
Daugkart.: 1

Boost, Buck 1 Output 500 kHz 96 % 5 V 500 mA - 40 C + 85 C SMD/SMT SOIC-8 Tube
Microchip Technology Perjungimo valdikliai Monolithic SMPS Controller 430Prieinamumas
Min.: 1
Daugkart.: 1

Boost, Buck, Flyback, Forward 1 Output 500 kHz 96 % 5 V 500 mA - 40 C + 85 C SMD/SMT SOIC-8 Tube
Microchip Technology Perjungimo valdikliai Monolithic High Speed SMPS Controller 78Prieinamumas
Min.: 1
Daugkart.: 1

Boost, Buck, Flyback, Forward 1 Output 500 kHz 96 % 5 V 1 A - 40 C + 85 C SMD/SMT SOIC-8 Tube
Texas Instruments Perjungimo valdikliai 4.5V-18V Input Synch Buck Cntrlr ALT 595 ALT 595-TPS40193DRCR 305Prieinamumas
Min.: 1
Daugkart.: 1
: 3 000

Buck 1 Output 300 kHz 85 % 4.5 V to 18 V 20 A - 40 C + 85 C SMD/SMT VSON-10 Reel, Cut Tape, MouseReel
Texas Instruments Perjungimo valdikliai Dual Ch Sync Step-Do wn A 595-TPS5124DBT A 595-TPS5124DBT 34Prieinamumas
Min.: 1
Daugkart.: 1
: 2 000

Buck 2 Output 500 kHz 80 % 900 mV to 12 V 20 A - 40 C + 85 C SMD/SMT TSSOP-30 Reel, Cut Tape, MouseReel
Texas Instruments Perjungimo valdikliai High Speed PWM Contr oller ALT 595-UC382 ALT 595-UC3823N 89Prieinamumas
Min.: 1
Daugkart.: 1

Boost, Buck, Flyback, Forward 1 Output 1 MHz 100 % 5.1 V 2 A 0 C + 70 C Through Hole PDIP-16 Tube