This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
This was posted over the weekend. Let me see if I can find someone to review it this week.
Also I would check the input filter stages to make sure they are well damped. typically to dampen an input filter stage you will need a capacitance that is at least 4 x greater than the existing input CIN. You may want to replace the 220uFs with lower value Cermaics and ensure these are located close to the Buck FETs. Then I would add a dampening Cin close to the input filter making sure Cdampen = 4 x Cin Buck. Also Make sure the Series ESR of the Cdampen >0.5ohm (typically).