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 开关控制器 Automotive grade 4.5 -42V wide VIN curre A 595-LM25119QPSQXNOPB 1,895库存量
最低: 1
倍数: 1
: 1,000

Buck 2 Output 50 kHz to 750 kHz 95 % 800 mV to 41.3 V 40 A - 40 C + 125 C SMD/SMT WQFN-32 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 4.5-14V Inp Synch Bu ck Cntrlr A 595-TPS A 595-TPS40197RGYT 2,994库存量
最低: 1
倍数: 1
: 3,000

Buck 1 Output 520 kHz 85 % 900 mV to 1.2 V 6 A - 40 C + 85 C SMD/SMT VQFN-16 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 High Speed Vltg Mode A 595-UCC35705D A 5 A 595-UCC35705D 2,278库存量
最低: 1
倍数: 1
: 2,500

Boost, Buck, Flyback, Forward 1 Output 4 MHz 93 % 20 mA 0 C + 70 C SMD/SMT SOIC-8 Reel, Cut Tape, MouseReel

Microchip Technology 开关控制器 36V, Dual Phase COT Buck Controller, Stackable Feature 3,370库存量
最低: 1
倍数: 1
: 3,300

Buck 1 Output 100 kHz to 1 MHz 85 % 4.5 V to 36 V Adjustable - 40 C + 125 C SMD/SMT VQFN-32 Reel, Cut Tape
Texas Instruments 开关控制器 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40192DRCT 4,746库存量
最低: 1
倍数: 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
ROHM Semiconductor 开关控制器 PWM Type DC/DC Converter IC Included a Switching MOSFET 2,000库存量
最低: 1
倍数: 1

Buck 1 Output 70 kHz 82 % 8.9 V to 26 V 10.4 A - 40 C + 105 C Through Hole DIP-7 Tube
Microchip Technology 开关控制器 38V DC-DC Buck Controller with HSC 4,238库存量
最低: 1
倍数: 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
Texas Instruments 开关控制器 Dual DDR selectable Sync buck Controller A 595-TPS51020DBT 891库存量
最低: 1
倍数: 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 开关控制器 Triple Sync Buck w/L DO Controller A 595 A 595-TPS5130PTR 146库存量
最低: 1
倍数: 1

Buck 4 Output 50 kHz to 500 kHz 97 % 900 mV to 8.5 V 15 A - 40 C + 85 C SMD/SMT LQFP-48 Tray
ROHM Semiconductor 开关控制器 PWM Type DC/DC Converter IC Included a Switching MOSFET 5,810库存量
最低: 1
倍数: 1

Buck 1 Output 70 kHz 82 % 8.9 V to 26 V 10.4 A - 40 C + 105 C Through Hole DIP-7 Tube

Texas Instruments 开关控制器 Wide Vtg Range Buck- Boost Cntlr A 595-L A 595-LM25118Q1MHENOPB 218库存量
最低: 1
倍数: 1

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 Tube
Texas Instruments 开关控制器 CVCC Flyback Cntlr w / Primary-Side Reg A 595-UCC28722DBVT 4,421库存量
最低: 1
倍数: 1
: 3,000

Buck, Flyback 1 Output 650 Hz to 80 kHz 99 % 21 V 37 mA - 40 C + 125 C SMD/SMT SOT-23-6 Reel, Cut Tape, MouseReel

Torex Semiconductor 开关控制器 2ch.Step-Down DC/DC Controller Ics 819库存量
最低: 1
倍数: 1
: 1,000

Buck 2 Output 300 kHz 100 % 900 mV to 10 V 1 A - 40 C + 85 C SMD/SMT MSOP-10 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085SD/NOPB 599库存量
最低: 1
倍数: 1
: 250

Buck 1 Output 1 MHz 100 % 1.25 V to 75 V 1.75 A - 40 C + 125 C SMD/SMT LLP-8 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 Automotive 80V 100 % duty cycle dual-c 1,872库存量
最低: 1
倍数: 1
最大: 500
: 2,500

Buck 2 Output 100 kHz to 2.5 MHz 100 % 4 V to 80 V 800 mV to 60 V - 40 C + 125 C SMD/SMT VQFN-36 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 Emulated Peak Crnt M ode Buck Cntlr A 92 A 926-LM3495MTCX/NOPB 340库存量
最低: 1
倍数: 1

Buck 1 Output 200 kHz to 1.5 MHz 80 % 600 mV to 5.5 V 10 A - 40 C + 125 C SMD/SMT TSSOP-16 Tube
Texas Instruments 开关控制器 Current-Mode PWM Con troller ALT 595-UC3 ALT 595-UC3843AD8TR 2,150库存量
最低: 1
倍数: 1
: 2,500

Boost, Buck, Flyback, Forward 1 Output 500 kHz 100 % 200 mA 0 C + 70 C SMD/SMT SOIC-8 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 Fixed-Freq Notebook Sys Pwr Controller D DISC-RESTRICTED-PART 440库存量
最低: 1
倍数: 1

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
onsemi NCP81172MNTXG
onsemi 开关控制器 2/1-PHASE SYNC BUCK 2,076库存量
最低: 1
倍数: 1
: 4,000

Buck 2 Output 200 kHz to 800 kHz 100 % 2 V 2 mA - 40 C + 125 C SMD/SMT Reel, Cut Tape, MouseReel
RECOM Power 开关控制器 Vin Vout mA Flyback MSOP-10 30库存量
70预期 2026/9/21
最低: 1
倍数: 1

Buck, Boost, Flyback 1 Output 500 kHz 85 % 4 V to 100 V - 40 C + 125 C SMD/SMT MSOP-10
Texas Instruments 开关控制器 High Speed Vltg Mode A 595-UCC35705DTR A A 595-UCC35705DTR 598库存量
最低: 1
倍数: 1

Boost, Buck, Flyback, Forward 1 Output 4 MHz 93 % 8.8 V 20 mA 0 C + 70 C SMD/SMT SOIC-8 Tube

Renesas / Intersil 开关控制器 ISL78264ARZ AUTOMOTIVE GRADE - Dual Sync Buck controller 5x 220库存量
最低: 1
倍数: 1
: 250

Buck 2 Output 200 kHz to 2.2 MHz 98.75 % 3.25 V to 5 V - 40 C + 125 C SMD/SMT WFQFN-32 AEC-Q100 Reel, Cut Tape
Texas Instruments 开关控制器 42V 100% duty-cycle capable dual-channe 456库存量
最低: 1
倍数: 1
: 2,500

Buck 2 Output 100 kHz to 2.2 MHz 100 % 4 V to 42 V 800 mV to 36 V - 40 C + 150 C SMD/SMT VQFN-36 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 Automotive 42-V sync hronous buck DC/DC 5,959库存量
最低: 1
倍数: 1
最大: 25
: 3,000

Buck 1 Output 2.2 MHz 100 % 3.5 V to 42 V 800 mV to 36 V - 40 C + 150 C SMD/SMT VQFN-24 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 Automotive 80V sync hronous buck DC/DC c 2,371库存量
最低: 1
倍数: 1
最大: 50
: 3,000

Buck 1 Output 2.2 MHz 99 % 3.5 V to 80 V 800 mV to 55 V 20 A - 40 C + 125 C SMD/SMT VQFN-19 Reel, Cut Tape, MouseReel