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A Simple Buck Converter Unit with ME3121

VIN Input: 5-40V

Output: 5V 1A; 3.3V 500mA

Dimension: 22 x 17 mm

This is a very compact Buck Converter Unit that turns a wide range of input voltage into the common 5V and 3.3V. It is cheap and have better performance than LM2596.

Rendered PCB

Schematics

Schematics

Order / Manufacturing

Download the Gerber.zip file from release and submit it to JLCPCB, leave everything set as default.

PCB PCB

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Buck Converter Unit: 6-40V -> 5V, 3.3V

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