DC-DC Buck Converter Calculator

Calculate the main component values for a simple buck converter.

Converter Parameters

About Buck Converters

A buck converter is a DC-to-DC power converter that steps down voltage from its input to its output. This calculator provides a starting point for selecting the main components—the inductor (L) and capacitor (C)—for a buck converter operating in continuous conduction mode. The duty cycle represents the percentage of time the switch in the converter is on.