Hi!,
I designed (through Webench, let's call it the "device". LOL.) a boost converter using LM3478. I used the suggested mosfet, NXP PSMN8R5 and i have a problem.
When i switch the power on to the device, the circuit appears to be shorted for about 2-3 seconds and then all it's ok. The step-up regulates to the desired voltage and everything seem to be ok.
If i change mosfet with CSD18537 the problem is not appearing at all, but with CSD18563 this problem is there again.
I finally manage to work it properly with STS5NF06L mosfet of st micro, but i don't know why it's working and why not.
So I ask if you could help me make the "device" work properly.
Thank you!