This is a follow up to my previous question regarding USB-C power delivery as a power source. There's been a fair about of development since when that question was asked and since STM have released a chip that will do everything I need in terms of negotiation with the USB-C power supply. (STUSB4500)
The long and short of wanting to use USB-C is that I eventually require 5A @ 5V. I also want to use one connector for both power and data (although bear in mind that these won't be both used at the same time).
I'll be negotiating a 3A @ 20V supply. So I need a buck converter that can fit the specifications. Obviously there's plenty of things around, however the important thing is that the height of the components is less than 4mm.
I'm unclear to the intricacies of buck converter, but they seem to require an electrolytic capacitor and an inductor. Will I be able to achieve a design that can do what I need? Any pointers toward suitable chips would be great.