Hi Alexandre,
Thank you for using the LM5022. The current spike is mainly the reverse recovery currents of D4, and also D105, plus the gate drive current. Transformer capacitance has very little contribution here.
C105 is too big. Please choose…
Hi,
I fixed it using LM5022EVAL/NOPB evaluation board. It is boost converter but annotation
is the same, just around the SEPIC coupled inductor is little bit different. See attached picture.
Thanks,
Svetoslav
Hi Chase,
Yes, they can use the EVM for LM5022 for reference. It can be found on the product page:
https://www.ti.com/tool/LM5022EVAL
Best regards, Niklas