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 Wide Inp Non-Sync Buck DC/DC Cntrlr 390库存量
¥2,048.8369
¥2,006.4506
¥1,799.5702
最低: 1
倍数: 1
Buck 1 Output 35 kHz to 500 kHz 100 % 700 mV to 46 V 3 A - 55 C + 210 C SMD/SMT CFP-8 Tube

Texas Instruments 开关控制器 AUTO CAT WIDE-INPUT SYNCH BUCK 5,223库存量
剪切带
¥56.161
¥43.0982
¥39.7873
¥36.2278
卷轴
¥31.0185
最低: 1
倍数: 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
Texas Instruments 开关控制器 Wide In Non-Sync Buc k DC/DC Cntrlr 29,227库存量
剪切带
¥20.4304
¥15.2211
¥13.899
¥12.4074
卷轴
¥10.17
最低: 1
倍数: 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
Texas Instruments 开关控制器 4.5V to 20V Buck A 5 95-TPS40195PW A 595 A 595-TPS40195PW 2,344库存量
剪切带
¥30.397
¥22.9277
¥21.018
¥18.9388
卷轴
¥15.8087
最低: 1
倍数: 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 开关控制器 Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64202DBVT 2,520库存量
剪切带
¥14.4753
¥10.6672
¥9.6728
¥8.6897
卷轴
¥7.232
最低: 1
倍数: 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 开关控制器 BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C42D 3,261库存量
剪切带
¥8.6897
¥6.2828
¥5.6726
¥5.0059
卷轴
¥3.8985
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

Texas Instruments 开关控制器 High Perf Sync Buck Cntrlr A 926-LM27402 A 926-LM27402MH/NOPB 2,190库存量
剪切带
¥27.9562
¥23.6622
¥21.6734
¥19.436
卷轴
¥16.8709
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 Wide Input Range Syn c Buck Cntlr A 926- A 926-LM5117PMH/NOPB 453库存量
剪切带
¥61.7093
¥47.6408
¥44.0926
¥40.2054
卷轴
¥35.1543
最低: 1
倍数: 1
: 250
Buck 1 Output 50 kHz to 750 kHz 98 % 800 mV to 62 V 20 A - 40 C + 125 C SMD/SMT HTSSOP-20 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 Low-Power BiCMOS Cur rent-Mode PWM A 595 A 595-UCC3802D 3,347库存量
剪切带
¥21.8881
¥16.2381
¥14.8482
¥13.2888
卷轴
¥10.5994
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 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2737MTCX/NOPB 1,089库存量
¥22.6678
¥16.8709
¥13.9781
¥13.2323
最低: 1
倍数: 1
Buck 1 Output 2 MHz 90 % 600 mV to 5 V 20 A - 40 C + 125 C SMD/SMT TSSOP-14 Tube
Texas Instruments 开关控制器 3-28V In 20A Synch S tep Down Cntrlr A 5 A 595-TPS51218DSCT 2,885库存量
剪切带
¥20.9276
¥15.5488
¥14.1476
¥12.7351
卷轴
¥10.6672
最低: 1
倍数: 1
: 3,000
Buck 1 Output 465 kHz 91 % 700 mV to 2.6 V 20 A - 40 C + 85 C SMD/SMT WSON-10 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64200DBVT 2,827库存量
剪切带
¥14.4753
¥10.6672
¥9.6728
¥8.6897
卷轴
¥7.119
最低: 1
倍数: 1
: 3,000
Buck 1 Output 350 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 开关控制器 Synchronous Buck Con troller A 595-TPS40 A 595-TPS40077PWP 2,047库存量
剪切带
¥40.6461
¥30.9168
¥28.4873
¥25.7979
卷轴
¥21.1084
最低: 1
倍数: 1
: 2,000
Buck 1 Output 1 MHz 93 % 700 mV 20 A - 40 C + 85 C SMD/SMT HTSSOP-16 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 3V-20V Wide Inp Sync Buck Controller A 5 A 595-TPS40304ADRCT 2,896库存量
剪切带
¥11.2548
¥9.1869
¥8.3507
¥7.3902
卷轴
¥6.215
最低: 1
倍数: 1
: 3,000
Buck 1 Output 600 kHz 90 % 600 mV to 18 V 25 A - 40 C + 145 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-UCC38C43DGK 3,881库存量
剪切带
¥16.7127
¥15.5488
¥14.2267
¥12.7351
卷轴
¥10.8367
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 VSSOP-8 Reel, Cut Tape, MouseReel

Texas Instruments 开关控制器 Wide Input Sync Buck Cntrlr source/sink A 595-TPS40061PWP 1,562库存量
剪切带
¥40.9399
¥32.3406
¥30.1032
¥27.3799
卷轴
¥27.0522
最低: 1
倍数: 1
: 2,000
Buck 1 Output 100 kHz to 1 MHz 98 % 700 mV to 45 V 10 A - 40 C + 85 C SMD/SMT HTSSOP-16 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 High Speed PWM Contr oller A 595-UC2823D A 595-UC2823DWTR 199库存量
¥127.9273
¥101.0107
¥91.4509
¥85.9817
最低: 1
倍数: 1
Boost, Buck, Flyback, Forward 1 Output 1 MHz 100 % 5.1 V 2 A - 25 C + 85 C SMD/SMT SOIC-16 Tube
Texas Instruments 开关控制器 BiCMOS Low-Power Cur rent Mode A 595-UCC A 595-UCC38C40D 3,965库存量
剪切带
¥7.6953
¥5.537
¥4.9833
¥4.3844
卷轴
¥3.4465
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
Microchip Technology 开关控制器 Digitally enhanced power analog buck controller 3,299库存量
剪切带
¥49.381
¥41.1885
卷轴
¥37.3917
最低: 1
倍数: 1
: 3,300
Buck 1 Output 100 kHz to 1.6 MHz 100 % 300 mV to 16 V 4 A - 40 C + 125 C SMD/SMT QFN-28 Reel, Cut Tape
Texas Instruments 开关控制器 4.5V-20V Buck Cntrlr A 595-TPS40195RGYT A 595-TPS40195RGYT 4,368库存量
剪切带
¥29.8659
¥22.2497
¥20.3513
¥18.2834
卷轴
¥15.4697
最低: 1
倍数: 1
: 3,000
Buck 1 Output 600 kHz 85 % 591 mV to 17 V 20 A - 40 C + 85 C SMD/SMT VQFN-16 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 Dual Output 2-Ph Syn ch Buck Cntrlr A 59 A 595-TPS5120DBT 1,574库存量
剪切带
¥87.0213
¥67.913
¥63.1896
¥57.9012
卷轴
¥50.1268
最低: 1
倍数: 1
: 2,000
Buck 2 Output 100 kHz to 500 kHz 83 % 900 mV to 26 V 20 A - 40 C + 85 C SMD/SMT TSSOP-30 Reel, Cut Tape, MouseReel
Texas Instruments 开关控制器 Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64203DBVT 12,962库存量
剪切带
¥13.4018
¥10.0118
¥9.1869
¥8.2603
卷轴
¥7.232
最低: 1
倍数: 1
: 3,000
Buck 1 Output 800 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 开关控制器 High Efficiency High -Side N-Channel Con A 926-LM3477MMX/NOPB 1,138库存量
剪切带
¥29.4365
¥21.9785
¥20.0688
¥17.9783
卷轴
¥14.7691
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
Monolithic Power Systems (MPS) 开关控制器 4V-60V Input, Current Mode, Synchronous Step-Down Controller 2,964库存量
剪切带
¥17.8653
¥13.1532
¥11.9893
¥10.6672
卷轴
¥8.8479
最低: 1
倍数: 1
: 5,000
Buck 1 Output 300 kHz 99.5 % 24 V - 40 C + 125 C SMD/SMT QFN-20 Reel, Cut Tape, MouseReel
Infineon Technologies 开关控制器 COOLSET 1,680库存量
¥13.7295
¥10.0909
¥8.5993
¥8.136
最低: 1
倍数: 1
Buck, Flyback 1 Output 65 kHz 80 % 15 V - 40 C + 150 C Through Hole DIP-7 Tube