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 Current Mode 3,329库存量
最低: 1
倍数: 1

Boost, Buck, Flyback, Forward 1 Output 500 kHz 100 % 5 V 200 mA 0 C + 70 C Through Hole PDIP-8 Tube
Texas Instruments 开关控制器 Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3800D 1,431库存量
最低: 1
倍数: 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 开关控制器 Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3802D 1,223库存量
最低: 1
倍数: 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 开关控制器 Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3803D 1,310库存量
最低: 1
倍数: 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 开关控制器 Low Power Economy Bi CMOS Current Mode A A 595-UCC3813D-2 3,992库存量
最低: 1
倍数: 1
: 2,500

Boost, Buck, Flyback, Forward 1 Output 1 MHz 100 % 1 A 0 C + 70 C SMD/SMT SOIC-8 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 BiCMOS Advanced Phas e Shift A 595-UCC38 A 595-UCC3895DWTR 444库存量
最低: 1
倍数: 1

Boost, Buck 4 Output 1 MHz 100 % 5 V 100 mA 0 C + 70 C SMD/SMT SOIC-20 Tube
Texas Instruments 开关控制器 BiCMOS Advanced Phas e Shift A 595-UCC38 A 595-UCC3895DW 3,326库存量
最低: 1
倍数: 1
: 2,000

Boost, Buck 4 Output 1 MHz 100 % 5 V 100 mA 0 C + 70 C SMD/SMT SOIC-20 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 BiCMOS Advanced Phas e Shift A 595-UCC38 A 595-UCC3895PW 1,145库存量
最低: 1
倍数: 1
: 2,000

Boost, Buck 4 Output 1 MHz 100 % 100 mA 0 C + 70 C SMD/SMT TSSOP-20 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42D 3,390库存量
最低: 1
倍数: 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
Torex Semiconductor 开关控制器 25V Input Synchronous Step-Down DCDC Converter 3,000库存量
最低: 1
倍数: 1
: 3,000

Buck 1 Output 300 kHz 98 % 1.5 V to 15 V 5 A - 40 C + 85 C SMD/SMT TSSOP-16 Reel, Cut Tape, MouseReel
Torex Semiconductor 开关控制器 16V Input Step-Down DCDC Controller 3,000库存量
最低: 1
倍数: 1
: 3,000

Buck 1 Output 500 kHz 100 % Adjustable 3 A - 40 C + 85 C SMD/SMT SOT-25-5 Reel, Cut Tape, MouseReel

Texas Instruments 开关控制器 42V Constant On-Time PFET Switching Cntl A 926-LM25085AMM/NOPB 910库存量
最低: 1
倍数: 1
: 250

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 42V On-Time PFET Buc k Switch Cntlr A 92 A 926-LM25085MME/NOPB 1,073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 VSSOP-8 Reel, Cut Tape, MouseReel

Texas Instruments 开关控制器 42V On-Time PFET Buc k Switch Cntlr A 92 A 926-LM25085MYE/NOPB 1,148库存量
2,000预期 2026/7/16
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 MSOP-PowerPad-8 Reel, Cut Tape, MouseReel

Texas Instruments 开关控制器 6-42V Wide Vin Curr ent Mode Synchronous A 926-LM25116MH/NOPB 2,456库存量
最低: 1
倍数: 1
最大: 60
: 2,500

Buck 1 Output 1 MHz 85 % 1.215 V to 36 V 10 A - 40 C + 125 C SMD/SMT HTSSOP-20 Reel, Cut Tape, MouseReel

Texas Instruments 开关控制器 High Perf Sync Buck Cntrlr A 926-LM27402 A 926-LM27402MH/NOPB 2,195库存量
最低: 1
倍数: 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

Texas Instruments 开关控制器 42V SYNC STEP-DOWN A 926-LM3150MHE/NOPB A 926-LM3150MHE/NOPB 1,821库存量
最低: 1
倍数: 1

Buck 1 Output 1 MHz 96 % 600 mV 12 A - 40 C + 125 C SMD/SMT HTSSOP-14 Tube

Texas Instruments 开关控制器 42V SYNC STEP-DOWN A 926-LM3150MH/NOPB A A 926-LM3150MH/NOPB 1,836库存量
最低: 1
倍数: 1
: 250

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

Texas Instruments 开关控制器 High Efficiency High -Side N-Channel Con A 926-LM3477MMX/NOPB 1,263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 Hysteretic PFET Buck Cntlr A 926-LM3485M A 926-LM3485MM/NOPB 1,900库存量
最低: 1
倍数: 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 开关控制器 HYSTERETIC PFET BUCK CONTROLLER A 926-LM A 926-LM3489MMX/NOPB 4,177库存量
最低: 1
倍数: 1
: 1,000

Buck 1 Output 1.4 MHz 100 % 1.239 V to 35 V 4 A - 40 C + 125 C SMD/SMT VSSOP-8 Reel, Cut Tape, MouseReel

Texas Instruments 开关控制器 Hysteretic PFET Buck Cntlr w/ Enable Pin A 926-LM3489QMMX/NOPB 1,686库存量
最低: 1
倍数: 1
: 1,000

Buck 1 Output 1 MHz to 1.4 MHz 100 % 1.239 V to 35 V 4 A - 40 C + 125 C SMD/SMT VSSOP-8 AEC-Q100 Reel, Cut Tape, MouseReel

Texas Instruments 开关控制器 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085MME/NOPB 2,026库存量
最低: 1
倍数: 1
: 1,000

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

Texas Instruments 开关控制器 Automotive Grade 4.5 -75V Wide Vin Const A 926-LM5085QMYE/NOPB 842库存量
最低: 1
倍数: 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 开关控制器 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085SDE/NOPB 3,001库存量
最低: 1
倍数: 1
: 1,000

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