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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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Topology
Number of Outputs
Switching Frequency
Duty Cycle - Max
Input Voltage
Output Voltage
Output Current
Minimum Operating Temperature
Maximum Operating Temperature
Mounting Style
Package/Case
Qualification
Packaging

Texas Instruments Switching Controllers 42V Synchronous Step -Down Controller wi A 926-LM3152MHE33NOPB
Datasheet
Lead-Time 9 Weeks
Min.: 1
Mult.: 1

Buck 1 Output 500 kHz 81 % 3.3 V 12 A - 40 C + 125 C SMD/SMT HTSSOP-14 Tube

Microchip Technology Switching Controllers 1MHz Synchronous Buck Controller
Datasheet
Lead-Time 11 Weeks
Min.: 1
Mult.: 1

Buck 1 Output 1 MHz 90 % Adjustable - 40 C + 125 C SMD/SMT MSOP-10 Tube
Microchip Technology Switching Controllers Monolithic SMPS Controller
Datasheet
Non-Stocked Lead-Time 11 Weeks
Min.: 1
Mult.: 1

Boost, Buck 1 Output 500 kHz 96 % 5 V 500 mA - 40 C + 85 C SMD/SMT MSOP-8 Tube
Microchip Technology Switching Controllers Monolithic SMPS Controller
Datasheet
Non-Stocked Lead-Time 11 Weeks
Min.: 1
Mult.: 1

Boost, Buck 1 Output 500 kHz 96 % 5 V 500 mA - 40 C + 85 C SMD/SMT MSOP-8 Tube
Microchip Technology Switching Controllers Monolithic SMPS Controller
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 1
Mult.: 1

Boost, Buck, Flyback, Forward 1 Output 500 kHz 96 % 5 V 1 A - 40 C + 85 C SMD/SMT SOIC-8 Tube
Microchip Technology Switching Controllers Monolithic SMPS Controller
Datasheet
Non-Stocked Lead-Time 9 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

Boost, Buck, Flyback, Forward 1 Output 500 kHz 96 % 5 V 1 A - 40 C + 85 C SMD/SMT SOIC-8 Reel
Microchip Technology Switching Controllers Sync Buck, PWM Ctrl 300Khz, 20ns
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

Buck 1 Output 300 kHz 85 % 5 V 50 mA - 40 C + 125 C SMD/SMT DFN-10 AEC-Q100 Tube
Analog Devices Switching Controllers 60V Low IQ Buck Ctlr
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 2.000
Mult.: 2.000
: 2.000

Buck 5 Output 1 MHz to 3 MHz 100 % 3.3 V, 5 V 8 A - 40 C + 125 C SMD/SMT QFN-48 Reel
Analog Devices Switching Controllers 60V Low IQ Buck Ctlr
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 1
Mult.: 1

Buck 5 Output 1 MHz to 3 MHz 100 % 3.3 V, 5 V 8 A - 40 C + 150 C SMD/SMT QFN-48 Tube
Analog Devices Switching Controllers 60V Low IQ Buck Ctlr
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 2.000
Mult.: 2.000
: 2.000

Buck 5 Output 1 MHz to 3 MHz 100 % 3.3 V, 5 V 8 A - 40 C + 150 C SMD/SMT QFN-48 Reel
Analog Devices Switching Controllers 60V Low IQ Buck Ctlr
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 2.000
Mult.: 2.000
: 2.000

Buck 5 Output 1 MHz to 3 MHz 100 % 3.3 V, 5 V 8 A - 40 C + 125 C SMD/SMT QFN-48 Reel
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

Buck 1 Output 200 kHz to 1 MHz 80 % 500 mV to 5.5 V 30 A - 40 C + 125 C SMD/SMT GQFN-48 Reel
Analog Devices Switching Controllers 2x Out PolyPhBuck Cntr w/ Sub-Milliohm D
Datasheet
Non-Stocked Lead-Time 16 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

Buck 1 Output 200 kHz to 1 MHz 80 % 500 mV to 5.5 V 30 A - 40 C + 125 C SMD/SMT GQFN-48 Reel
Analog Devices Switching Controllers L IQ , 60V, Hi Freq Sync Buck Cntr
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

Buck 1 Output 320 kHz to 2.25 MHz 98 % 800 mV to 24 V 20 A - 40 C + 150 C SMD/SMT QFN-20 Reel
Analog Devices Switching Controllers L IQ , 60V, Hi Freq Sync Buck Cntr
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

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 Reel
Analog Devices Switching Controllers 150V L IQ, Sync Buck DC/DC Cntr
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

Buck 1 Output 50 kHz to 900 kHz 100 % 800 mV to 60 V 10 A - 40 C + 150 C SMD/SMT QFN-24 Reel
Analog Devices Switching Controllers 150V L IQ, Sync Buck DC/DC Cntr
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

Buck 1 Output 50 kHz to 900 kHz 100 % 800 mV to 60 V 10 A - 40 C + 125 C SMD/SMT QFN-24 Reel
Analog Devices Switching Controllers 60V Sync 4-Switch Buck-Boost Cntr w/ SS
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

Boost, Buck 1 Output 630 kHz 95 % 0 V to 60 V 25 A - 40 C + 125 C SMD/SMT QFN-28 AEC-Q100 Reel
Analog Devices Switching Controllers 20 Amp Buck Controller in QSOP
Datasheet
Non-Stocked Lead-Time 14 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

Buck 1 Output 300 kHz to 600 kHz 90 % 600 mV to 20.4 V 20 A - 40 C + 85 C SMD/SMT QSOP-16 Reel, Cut Tape, MouseReel
Analog Devices Switching Controllers 1.0MHz, Light Load Eff Enabled
Datasheet
Lead-Time 14 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 1.000

Buck 1 Output 300 kHz, 600 kHz, 1 MHz 84 % 800 mV 25 A - 40 C + 125 C SMD/SMT MSOP-10 Reel, Cut Tape, MouseReel
Analog Devices Switching Controllers WM Controller for Battery Test Solution
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1.000
Mult.: 1.000
: 1.000

Boost, Buck 1 Output 50 kHz to 300 kHz 97 % 5 V 5 mA - 40 C + 85 C SMD/SMT TSSOP-16 Reel
Analog Devices Switching Controllers Hi Speed C Mode Pulse Width Mods
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1
Mult.: 1

Buck 1 Output 500 kHz 96 % 5 V 1 A 0 C + 100 C SMD/SMT SOIC-8 Tube
Analog Devices Switching Controllers Hi Speed C Mode Pulse Width Mods
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

Buck 1 Output 500 kHz 96 % 5 V 1 A - 40 C + 100 C SMD/SMT SOIC-8 Reel
Analog Devices Switching Controllers Hi Speed C Mode Pulse Width Mods
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1
Mult.: 1

Buck 1 Output 500 kHz 96 % 5 V 1 A 0 C + 100 C Through Hole PDIP-8 Tube
Analog Devices Switching Controllers Hi Speed C Mode Pulse Width Mods
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1
Mult.: 1

Buck 1 Output 500 kHz 96 % 5 V 1 A - 40 C + 100 C SMD/SMT SOIC-8 Tube