How to select the Capacitors and resistor which connect to LTC7130's ITH pin
I would suggest you to use LTpowerCAD vII it will compute the need components for the ITH pin
Link for LTpowerCad:
another question：can LTC7130‘s Differential Remote Sense pin DIFFP and DIFFN connect to my cpu ball to tracking cpu ‘s power ball？
The DIFFP and DIFFN pins are only used to mitigate the effect of the voltage drop caused by long cable / routes.