Electronic – Multiple Buck Converters

buckdcdiodes

I have multiple buck converters, model XL4005 (datasheet ), fed from a 12V battery source to several devices i.e. My motors (require 12V), Arduino (requires 5V) and Transmitter module (require 3.3V).

Do I connect the buck converters in parallel and distribute the voltages to respective devices? Is it safe to do so? I saw some uses diode to even out the supply current but I'm not quite sure how, link: Is it ok to connect the output of buck regulator in parallel?

My specs:

Best Answer

All the inputs of your converters can be connected to the 12V power source. There is no need for diodes.

If you want some clarity about additional diodes that others have used then please provide links to that information. They may be doing it with multiple power sources feeding different converters to prevent power going back into a turned off supply. (which is not what you are doing)

Edit- The link you provided was someone who wants to use multiple power supplies to obtain higher capacity for the same load. That is not what you asked for and it doesn't apply in your case.