Hi.
A little update about the project status...
I've built a prototype of a new switching power supply as suggested by Dario. Below is a picture. I was able to test it at 400mAmps and a Vin Max of 31Volt DC.
The output voltage is 5V. I've measured about 200mV of ripple in these conditions.
I think it's good and I'll integrate as soon as possible in the target board.
Thanks!
Marco.
