Tool/software: Webench
Hello,
I make a non isolated DC/DC from 12V to 3.3V TPS563210 based, and i hope to have high performance.
The firs PCB work properly, but it had got a quite difficult to start with load connected. I solve this problem increasing Vss up to 47nF.
The device brokes when i disconnect and riconnect quite sleepy power in.
I remake the PCB decreasing the lenght of Vin and GND wires the proble was the same, works properly and when i switch off and ON power it crashes.
Both two had gnd plane.
EN, as Webench indicates, is direcly connect to VIN. Must i put an RC circuit to EN?
I attach the schematic that i make.
Thank you