We used the schematic of the TPS543B22 evaluation module. The PCB also has pads for the second stage filter on the circuit board to be populated. Here is the link for the user's guide which has the schematic: TPS543B22EVM .
I would recommend the TPS543B22. It will release in December, the product folder is located here https://www.ti.com/product/TPS543B22
The input ripple requirement can be meet with additional capacitors or a ferrite bead on input.
The efficiency is greater…