Hello!
I have a LM25575 hooked up as an inverting power supply, giving me -12V out of +12V. I followed the Webbench Design closely and ordered the parts it recommended me (except for resistors). I attached the schematic and layout. Current draw is 300mA and my input comes from another wall wart 12V power supply. My input voltage doesn't look jagged up or anything, also not when the supply is running.
Whenever I turn on this power supply, it will go to -1.6 V and then just stay there. I have no idea how this could have happened because I had it on a prototyping PCB before I incorporated it into my actual design now and there it worked perfectly. I would be happy about any help here.