Buck Converter Compensation Components Selection

Thread Starter


Joined Mar 21, 2020
Dear Team,

This is a general question. For my self-study, of loop compensation of buck converters. I used LM21305(just an example).

My question is,

suppose this IC or any switcher is connected to a load, and in the load let us say X i/ps are switching and each i/p consumes Y amount of current.

in such a situation how to design the compensation network for the switching converter such that the converter won't become unstable.

I searched in google for materials to understand. I did not find anything which explains the situation mentioned above.

If you don't mind could you please answer this question?




Joined Feb 24, 2006
Hi Hari,
Loop compensation in general is treated in:
  1. Basso, Switch Mode Power Supplies, 2008
  2. Basso, Switch Mode Power Supplies, 2014
The 2nd edition has a bit more on using Spice to determine the requirements, and test potential solutions. It has a great deal to do with the order of the system. Some of Basso's papers can be found as application notes at the ON Semiconductor website.