I am trying to design a high current DC-DC buck converter using LT8390. The voltage source is a 12v 82A power supply salvaged from a Server.

In the datasheet from page 18 onwards, to calculate Inductance \[ L = 10*{vout}*R{sense} \]. Then to calculate Rsense

\[ frac2*50{m}V/2*I{out}{(max)+\Delta I{L}}{(buck)} \] So to find delta IL(buck) = Vout x (Vin(max)-Vout)/f x L x Vin(max)

Every formula requires one variable from each other. Can somebody help me find what i've been missing ?