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 (DKK) 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
Microchip Technology Switching Controllers Monolithic SMPS Controller
Datasheet
Non-Stocked
13,13 kr.
10,97 kr.
9,92 kr.
Min.: 1
Mult.: 1
Boost, Buck, Flyback, Forward 1 Output 500 kHz 96 % 5 V 1 A - 40 C + 85 C Through Hole DIP-8 Tube

Microchip Technology Switching Controllers Monolithic SMPS Controller
Datasheet
Non-Stocked
6,80 kr.
5,65 kr.
5,13 kr.
Min.: 1
Mult.: 1
Boost, Buck, Flyback, Forward 1 Output 500 kHz 96 % 5 V 1 A - 40 C + 85 C Through Hole PDIP-14 Tube
Torex Semiconductor XC9252F08AVR-G
Torex Semiconductor Switching Controllers
Datasheet
Non-Stocked
Reel
12,09 kr.
11,71 kr.
11,49 kr.
Min.: 1.000
Mult.: 1.000
: 1.000
Buck 1 Output 280 kHz to 550 kHz 100 % 1.5 V to 30 V - 40 C + 105 C SMD/SMT TSSOP-16 Reel
STMicroelectronics Switching Controllers Voltage/Current Cont
Datasheet
Non-Stocked Lead-Time 32 Weeks
5,15 kr.
4,88 kr.
Min.: 1.000
Mult.: 1.000
Buck 1 Output 70 kHz to 130 kHz 100 % 80 mA - 40 C + 125 C SMD/SMT SOIC-14 Tube
Analog Devices Switching Controllers Hi C Supercap Backup Cntr & S Mon
Mouser does not presently sell this product in your region.
Datasheet
Boost, Buck 1 Output 500 kHz 99.5 % 35 V 10 A - 40 C + 125 C SMD/SMT QFN-38 Tube
Analog Devices / Maxim Integrated Switching Controllers High-Efficiency, 10-Pin MAX, Step-Down Controllers for Notebooks
Mouser does not presently sell this product in your region.
Datasheet
Buck 1 Output 300 kHz 100 % 500 mV to 5.5 V 2 A - 40 C + 85 C SMD/SMT UMAX-10 Tube