The MAX17080 is a triple-output, step-down, fixedfrequency controller for AMD's serial VID interface (SVI) CPU and northbridge (NB) core supplies. The MAX17080 consists of two high-current SMPSs for the CPU cores and one 3A internal switch SMPS for the NB core. The two CPU core SMPSs run 180 out-of-phase for true interleaved operation, minimizing input capacitance. The 3A internal switch SMPS runs at twice the switching frequency of the core SMPS, reducing the size of the external components.