Sirs: I've copied the attached design for SEPIC version of LM5022 and I believed I had followed all of the guidelines, but it's not even starting up. Could you please take a look and walk me through correcting it? At VIN I have 8V. At UVLO 1.68V. Out is 0V, no activity on scope. VCC is 7.9v The final output of the converter is 1.5V.
I do see one error in my schematic, in the connection between FB and COMP, but I don't know if this is enough to stop it from working completely. I don't see where I can attach the schematic and artwork, so please respond with an address and I'll send it.
I'm trying to get a 6-9V input, 12V output at 3-4A.