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 Switching Controllers AUTO CAT WIDE-INPUT SYNCH BUCK
Datasheet
5.540In Stock
MouseReel Available
Min.: 1
Mult.: 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
Analog Devices Switching Controllers 150V L IQ, Sync Buck DC/DC Cntr
Datasheet
2.651In Stock
Min.: 1
Mult.: 1

Buck 1 Output 50 kHz to 900 kHz 100 % 800 mV to 60 V 10 A - 40 C + 125 C SMD/SMT TSSOP-24 Tube
Analog Devices Switching Controllers 40V Dual Low IQ, 100 DC Sync Buck CTL
Datasheet
9.137In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

Boost, Buck 2 Output 3 MHz 100 % 800 mV to 40 V 180 uA - 40 C + 150 C SMD/SMT QFN-28 Reel, Cut Tape, MouseReel

Texas Instruments Switching Controllers Hysteretic PFET Buck Cntlr w/ Enable Pin A 926-LM3489MM/NOPB
Datasheet
24.433In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 90
: 3.500

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 Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Switching Controllers Versatile Automotive 60V/70V 2.2MHz Buck Controller with 7 A IQ and Optional Bypass Mode
Datasheet
5.882In Stock
Min.: 1
Mult.: 1

Buck 1 Output 220 kHz to 2.2 MHz 99 % 5 V - 40 C + 125 C SMD/SMT TQFN-EP-20 Tray
Infineon Technologies Switching Controllers COOLSET
Datasheet
1.930In Stock
Min.: 1
Mult.: 1
Buck, Flyback 1 Output 65 kHz 80 % 15 V - 40 C + 150 C Through Hole DIP-7 Tube
Texas Instruments Switching Controllers Wide In Non-Sync Buc k DC/DC Cntrlr
Datasheet
29.976In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 60
: 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
Analog Devices / Maxim Integrated Switching Controllers Low-Cost, Small, 4.5V to 28V Wide Operat
Datasheet
1.000In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

Buck 1 Output 200 kHz to 2 MHz 88 % 600 mV to 28 V 15 A - 40 C + 125 C SMD/SMT TDFN-EP-14 Reel, Cut Tape, MouseReel
Analog Devices Switching Controllers Bidirectional Synchronous 100V Buck/Boost Controller with Reverse Supply, Reverse Current and Fault Protection
Datasheet
178In Stock
Min.: 1
Mult.: 1

Boost, Buck 1 Output 80 kHz to 600 kHz 95 % 100 V 40 A - 40 C + 125 C SMD/SMT TSSOP-38 Tube
Microchip Technology Switching Controllers 75V, Synchronous Buck Controller Featuring Adaptive On-Time Control with Light Load Mode Selection
Datasheet
6.341In Stock
MouseReel Available
Min.: 1
Mult.: 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, MouseReel
Texas Instruments Switching Controllers Multiphase bidirecti onal current contro A 595-LM5170PHPT
Datasheet
1.153In Stock
MouseReel Available
Min.: 1
Mult.: 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 Switching Controllers Current-Mode PWM Con troller A 595-UC384 A 595-UC3843AD
Datasheet
3.199In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 160
: 2.500

Boost, Buck, Flyback, Forward 1 Output 500 kHz 100 % 5 V 200 mA 0 C + 70 C SMD/SMT SOIC-14 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers Adv Voltage Mode
Datasheet
303In Stock
Min.: 1
Mult.: 1

Boost, Buck 1 Output 700 kHz 99 % 9.6 V 1 A 0 C + 70 C SMD/SMT SOIC-14 Tube
Texas Instruments Switching Controllers 2.2-V to 16-V 2-MHz N-channel FET sync A A 926-LM2737MTCX/NOPB
Datasheet
1.270In Stock
Min.: 1
Mult.: 1

Buck 1 Output 2 MHz 90 % 600 mV to 5 V 20 A - 40 C + 125 C SMD/SMT TSSOP-14 Tube
Microchip Technology Switching Controllers 38V DC-DC Buck Controller with HSC
Datasheet
4.338In Stock
MouseReel Available
Min.: 1
Mult.: 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
Analog Devices Switching Controllers Dual/2phase Cntrl in LD20 Process
Datasheet
795In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

Buck 2 Output 200 kHz to 1.5 MHz 90 % 600 mV to 18 V 25 A - 40 C + 85 C SMD/SMT LFCSP-32 Reel, Cut Tape, MouseReel

Texas Instruments Switching Controllers Wide Vtg Range Buck- Boost Cntlr A 595-L A 595-LM25118Q1MH/NOPB
Datasheet
396In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

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 Reel, Cut Tape, MouseReel

Texas Instruments Switching Controllers Wide Vtg Range Buck- Boost Cntlr A 595-L A 595-LM25118Q1MHENOPB
Datasheet
2.964In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

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 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers 2.2MHz Low Iq Sync B uck Controller A 59 A 595-LM25141QRGERQ1
Datasheet
3.061In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

Buck 1 Output 2.2 MHz 99 % 1.5 V to 15 V 20 A - 40 C + 150 C SMD/SMT VQFN-24 AEC-Q100 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers Low Pin Count Sync B uck DC/DC Cntrlr A A 595-TPS40190DRCT
Datasheet
14.193In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3.000

Buck 1 Output 300 kHz 85 % 600 mV to 12.75 V 20 A - 40 C + 85 C SMD/SMT VSON-10 Reel, Cut Tape, MouseReel
Texas Instruments Switching Controllers 3-20V Wide Input Syn ch Buck Cntrlr A 59 A 595-TPS40304DRCR
Datasheet
5.076In Stock
MouseReel Available
Min.: 1
Mult.: 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 Switching Controllers Adj Hi-Efficient Ste p-Dwn 20uA SOT-23 A A 595-TPS64202DBVT
Datasheet
2.561In Stock
MouseReel Available
Min.: 1
Mult.: 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 Switching Controllers High Perf Sync Buck Cntrlr A 926-LM27402 A 926-LM27402MH/NOPB
Datasheet
2.965In Stock
MouseReel Available
Min.: 1
Mult.: 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
Microchip Technology Switching Controllers 75V, Synchronous Buck Controller Featuring Adaptive On-Time Control with External Soft Start
Datasheet
7.239In Stock
Min.: 1
Mult.: 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
Analog Devices Switching Controllers Hi Speed C Mode Pulse Width Mods
Datasheet
933In Stock
Min.: 1
Mult.: 1

Buck 1 Output 500 kHz 96 % 5 V 1 A 0 C + 100 C SMD/SMT SOIC-8 Tube