Linear Technology
DC829A - LTC3776EUF | 2-Phase Dual Step-Down Converter For DDR/QDR Memory Termination, Vin = 2.75V-8V, Vout1 = 2.5V (5A@5Vin), Vout2=1.25V (+/-5A@5Vin)
Manual
LTC3776 - Product Info
LTspice - Software