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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Microchip Technology 开关控制器 Digitally enhanced power analog buck controller 359库存量
最低: 1
倍数: 1

Buck 1 Output 100 kHz to 1.6 MHz 100 % 300 mV to 16 V 4 A - 40 C + 125 C SMD/SMT QFN-24 Tube
Texas Instruments 开关控制器 3-20V Wide Input Syn ch Buck Cntrlr A 59 A 595-TPS40304DRCR 4,964库存量
最低: 1
倍数: 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 开关控制器 Fixed-Freq Notebook Sys Pwr Controller A A 595-TPS51220ARTVT 2,305库存量
最低: 1
倍数: 1
: 3,000

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 开关控制器 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085AMME/NOPB 920库存量
最低: 1
倍数: 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
Texas Instruments 开关控制器 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2737MTC/NOPB 3,092库存量
最低: 1
倍数: 1
: 2,500

Buck 1 Output 600 kHz 90 % 600 mV to 5 V 20 A - 40 C + 125 C SMD/SMT TSSOP-14 Reel, Cut Tape, MouseReel
Microchip Technology 开关控制器 75V, Synchronous Buck Controller Featuring Adaptive On-Time Control with External Soft Start 5,204库存量
最低: 1
倍数: 1
: 5,000

Buck 1 Output 270 kHz to 800 kHz 85 % 600 mV to 30 V - 40 C + 125 C SMD/SMT VQFN-16 Reel, Cut Tape
Texas Instruments 开关控制器 BiCMOS Advanced Phas e Shift 392库存量
最低: 1
倍数: 1

Boost, Buck 4 Output 1 MHz 100 % 5 V 100 mA 0 C + 70 C Through Hole PDIP-20 Tube

Torex Semiconductor 开关控制器 16V Step-Down DCDC Controller 2,750库存量
最低: 1
倍数: 1
: 3,000

Buck 1 Output 1 MHz 100 % 1.2 V 3 A - 40 C + 85 C SMD/SMT SOT-25-5 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 4.5-42V Wide Vin Co nstant On-Time Non-S A 926-LM25085SDE/NOPB 2,750库存量
最低: 1
倍数: 1
: 1,000

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 开关控制器 High Efficiency High -Side N-Channel Con A 926-LM3477AMMX/NOPB 811库存量
最低: 1
倍数: 1
: 1,000

Buck 1 Output 500 kHz 93 % 1.265 V 6 A - 40 C + 125 C SMD/SMT VSSOP-8 Reel, Cut Tape, MouseReel

Texas Instruments 开关控制器 High Efficiency High -Side N-Channel Con A 926-LM3477MM/NOPB 4,007库存量
最低: 1
倍数: 1
: 3,500

Buck 1 Output 500 kHz 93 % 1.265 V 6 A - 40 C + 125 C SMD/SMT VSSOP-8 Reel, Cut Tape, MouseReel
Microchip Technology 开关控制器 38V DC-DC Buck Controller with HLL 6,968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 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCR 1,838库存量
最低: 1
倍数: 1
: 250

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
Richtek 开关控制器 Dual-Channel Synchronous DC-DC Step-Down Controller with 5V/3.3V LDOs 2,905库存量
最低: 1
倍数: 1
: 1,500

Buck 4 Output 300 kHz, 355 kHz 98 % Adjustable 100 mA - 40 C + 85 C SMD/SMT WQFN-20 Reel, Cut Tape
Microchip Technology 开关控制器 75V DC-DC Buck Controller with HLL 1,616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 3-20V Wide Input Syn c Buck Controller A A 595-TPS40305DRCT 2,566库存量
最低: 1
倍数: 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 开关控制器 BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42DGKR 955库存量
最低: 1
倍数: 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 开关控制器 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2727MTC/NOPB 2,564库存量
最低: 1
倍数: 1
: 2,500

Buck 1 Output 2 MHz 90 % 600 mV to 5 V 20 A 0 C + 125 C SMD/SMT TSSOP-14 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 Multiphase bidirecti onal current contro A 595-LM5170PHPT 1,081库存量
最低: 1
倍数: 1
: 1,000

Boost, Buck 2 Output 50 kHz to 500 kHz 99 % 100 mV to 100 V 50 A - 40 C + 125 C SMD/SMT TQFP-48 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 4.5V-8V Input Synch Buck Contr A 595-TPS A 595-TPS40192DRCT 4,741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
Texas Instruments 开关控制器 Adv Voltage Mode 279库存量
最低: 1
倍数: 1

Boost, Buck 1 Output 700 kHz 99 % 9.6 V 1 A 0 C + 70 C SMD/SMT SOIC-14 Tube
onsemi 开关控制器 CONSTANT-CURRENT BUCK REGULATOR FOR DRIVING HIGH POWER LEDS 2,925库存量
最低: 1
倍数: 1
: 3,000

Buck 1 Output 2.4 MHz 100 % 1.36 V - 40 C + 125 C SMD/SMT DFNW-10 Reel, Cut Tape, MouseReel

Microchip Technology 开关控制器 500KHz Synchronous Buck Controller 89库存量
最低: 1
倍数: 1

Buck 1 Output 500 kHz 92 % 800 mV - 40 C + 125 C SMD/SMT MSOP-10 Tube
Microchip Technology 开关控制器 High Efficiency Synchronous Buck Controller 96库存量
最低: 1
倍数: 1

Buck 5 Output 330 kHz 86 % 3.3 V 20 A - 40 C + 85 C SMD/SMT SOP-16 Tube

Microchip Technology 开关控制器 Monolithic SMPS Controller 196库存量
最低: 1
倍数: 1

Boost, Buck, Flyback, Forward 1 Output 500 kHz 96 % 5 V 500 mA - 40 C + 85 C SMD/SMT SOIC-14 Tube