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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Qty. RoHS ECAD Model Topology
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Analog Devices Switching Controllers L IQ , 60V, Hi Freq Sync Buck Cntr
Datasheet
159In Stock
Min.: 1
Mult.: 1

Buck 1 Output 320 kHz to 2.25 MHz 98 % 800 mV to 24 V 20 A - 40 C + 125 C SMD/SMT QFN-20 Tube

Microchip Technology Switching Controllers 76V Synchronous Buck Controller
Datasheet
388In Stock
Min.: 1
Mult.: 1

Buck 1 Output 100 kHz 96 % Adjustable 15 A - 40 C + 125 C SMD/SMT MSOP-10 Tube
Texas Instruments Switching Controllers High Speed PWM Contr oller
Datasheet
214In Stock
Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward 1 Output 1 MHz 100 % 5.1 V 2 A - 25 C + 85 C Through Hole PDIP-16 Tube
Analog Devices / Maxim Integrated Switching Controllers Versatile Automotive 36V 2.2MHz Buck Controller with 3.5 A IQ
Datasheet
489In Stock
Min.: 1
Mult.: 1

Buck 1 Output 220 kHz to 2.2 MHz 99 % 5 V, 1 V to 10 V 15 A - 40 C + 125 C SMD/SMT SWTQFN-EP-16 AEC-Q100 Tray

Microchip Technology Switching Controllers 36V, Dual Phase COT Buck Controller, Stackable Feature
Datasheet
3.370In Stock
Min.: 1
Mult.: 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
Analog Devices Switching Controllers 60V Sync 4-Switch Buck-Boost Cntr w/ SS
Datasheet
122In Stock
Min.: 1
Mult.: 1

Boost, Buck 1 Output 630 kHz 95 % 0 V to 60 V 25 A - 40 C + 125 C SMD/SMT QFN-28 AEC-Q100 Tube
Analog Devices / Maxim Integrated Switching Controllers Ultra-High-Efficiency, Dual Step-Down Co
Datasheet
113In Stock
Min.: 1
Mult.: 1

Buck 2 Output 200 kHz to 540 kHz 100 % 1 V to 5.5 V 8 A - 40 C + 85 C SMD/SMT QSOP-28 Tube
ROHM Semiconductor Switching Controllers PWM Type DC/DC Converter IC Included a Switching MOSFET
Datasheet
2.000In Stock
Min.: 1
Mult.: 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 Switching Controllers 38V DC-DC Buck Controller with HSC
Datasheet
4.238In 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
Texas Instruments Switching Controllers Automotive grade 4.5 -42V wide VIN curre A 595-LM25119QPSQXNOPB
Datasheet
1.895In Stock
MouseReel Available
Min.: 1
Mult.: 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 Switching Controllers 4.5-14V Inp Synch Bu ck Cntrlr A 595-TPS A 595-TPS40197RGYT
Datasheet
2.994In Stock
MouseReel Available
Min.: 1
Mult.: 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 Switching Controllers High Speed Vltg Mode A 595-UCC35705D A 5 A 595-UCC35705D
Datasheet
2.278In Stock
MouseReel Available
Min.: 1
Mult.: 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

Analog Devices / Maxim Integrated Switching Controllers High-Efficiency, PWM, Step-Down DC-DC Co
Datasheet
153In Stock
Min.: 1
Mult.: 1

Buck 1 Output 300 kHz 99 % 2.5 V to 5.5 V 10 A - 40 C + 85 C SMD/SMT QSOP-16 Tube
Analog Devices / Maxim Integrated Switching Controllers Low-Cost, High-Frequency, Current-Mode P
Datasheet
2.480In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

Boost, Buck 1 Output 300 kHz 89 % 800 mV to 11.35 V 25 A - 40 C + 85 C SMD/SMT USOP-10 Reel, Cut Tape, MouseReel
onsemi Switching Controllers INDUSTRIAL TEMP RANGE I
Datasheet
2.103In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

Buck 2 Output 300 kHz to 1.4 MHz 100 % 3.5 V 800 uA - 40 C + 100 C SMD/SMT QFN-52 Reel, Cut Tape, MouseReel
Analog Devices Switching Controllers 1MHz Off-Line C Mode PWM & DC/DC Conv
Datasheet
150In Stock
Min.: 1
Mult.: 1

Buck 1 Output 1 MHz 100 % 5 V 1 A 0 C + 100 C Through Hole PDIP-8 Tube
Texas Instruments Switching Controllers CVCC Flyback Cntlr w / Primary-Side Reg A 595-UCC28722DBVT
Datasheet
4.421In Stock
MouseReel Available
Min.: 1
Mult.: 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
Richtek Switching Controllers Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs
Datasheet
1.542In Stock
Min.: 1
Mult.: 1
: 1.500

Buck 4 Output 400 kHz, 475 kHz 98 % Adjustable 100 mA - 40 C + 85 C SMD/SMT WQFN-20 Reel, Cut Tape

Torex Semiconductor Switching Controllers 2ch.Step-Down DC/DC Controller Ics
Datasheet
819In Stock
MouseReel Available
Min.: 1
Mult.: 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 Switching Controllers 4.5-75V Wide Vin Co nstant On-Time Non-S A 926-LM5085SD/NOPB
Datasheet
599In Stock
MouseReel Available
Min.: 1
Mult.: 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 Switching Controllers Dual DDR selectable Sync buck Controller A 595-TPS51020DBT
Datasheet
891In Stock
MouseReel Available
Min.: 1
Mult.: 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 Switching Controllers Triple Sync Buck w/L DO Controller A 595 A 595-TPS5130PTR
Datasheet
141In Stock
Min.: 1
Mult.: 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
Analog Devices / Maxim Integrated Switching Controllers Low-Cost, High-Frequency, Current-Mode P
Datasheet
665In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

Boost, Buck 1 Output 1 MHz 89 % 800 mV to 4.73 V 4 A - 40 C + 85 C SMD/SMT USOP-10 Reel, Cut Tape, MouseReel
Analog Devices / Maxim Integrated Switching Controllers Dual-Synchronous Buck Controllers for Po
Datasheet
142In Stock
Min.: 1
Mult.: 1

Buck 2 Output 200 kHz to 1.4 MHz 95 % 800 mV to 3.6 V 30 A - 40 C + 85 C SMD/SMT QSOP-28 Tube

Analog Devices / Maxim Integrated Switching Controllers High-Efficiency, 10A, PWM Internal-Switc
Datasheet
57In Stock
Min.: 1
Mult.: 1

Buck 1 Output 250 kHz to 2.4 MHz 95 % 600 mV to 3.1 V 10 A - 40 C + 85 C SMD/SMT TQFN-32 Tube