Embarking on some work with the Raspberry Pi recently, I wanted to know what its power architecture looked like. The schematic diagrams are freely available but a quick web search didn’t reveal any higher-level design documents like this, so I drew my own and here it is.
I offer no guarantees of accuracy. Don’t blame me if you use this documentation and destroy your Raspberry Pi or anything else. This is not an official document. I hope it’s useful to someone.
The original version of this that I posted in April 2013 had a mistake in it, which Kai kindly pointed out. The version below has been corrected.
There’s a nice shiny pdf of it here: Raspberry Pi Power Architecture