Linear Technology
DC1367A - LTM4615EV Demo Board | uModule Regulator, Dual 4A Plus VLDO, 2.5V ≤ VIN ≤ 5.5V, Vout = 1.8V @ 4A, Vout2 = 1.2V @ 2.5A, Vout3 = 1V @ 1.5A
Manual
LTM4615 - Product Info
LTspice - Software