They consider to use LM2596T-ADJ and LM2595T-ADJ for their power supply module.
They did test noise injection test(144MHz and 430MHz) for this module,they found Vout rise over setup voltage.
Vin:22V
setup Vout:15V(2A)
They would like to improve this phenomenon and they try to add 1000pf capacitor between FB and GND.
This capacitor adding don't rise Vout over setup voltage.
Does this capacitor adding cause any other problem?
If you need checking their circuit,we can send it to you.
Please let us know what you need.
Regards,
