Linear Technology
DC1084A-A - LTM4602EV Demo Board | Step-Down μModule® Regulator, 5V ≤ VIN ≤ 20V, Vout = 0.6V/1.2V/1.5V/1.8V/2.5V/3.3V/5V @ 6A
Manual
LTM4602 - Product Info
LTspice - Software