we are trying to use a battery charging buck converter design in reverse direction to be used as a boost converter to drive a LED panel of 17.4 volts / 1.32 A While the LTSpice simulation seems to deliver right voltage and current; but we are not able to eliminate the output ripples completely and could see huge inrush current (probably due to the capacitors) on Mosfet drain output.

Minimum capacitor value calculated from this document https://www.ti.com/lit/an/slva372d/slva372d.pdf?ts=1695520854803&ref_url=https%253A%252F%252Fwww.google.com%252F

D (Duty cycle) = 10.56
I (max) = 1.4 A
f = 25 KHz
ΔV (acceptable output ripple voltage) = 50 mV

Questions,

1. How we can reduce the ripple spikes?
2. Will the inrush current damage the MOSFET?

The circuit from LTSpice

High side driver

Low side driver

Capacitors selection

Output waveform

Ripple

U1 Drain Inrush current