A Large-Signal Method for Modeling Vccin feedthrough Noise in Microprocessors with Fully Integrated Voltage Regulators

A simple and accurate method is proposed to model the Vccin feedthrough noise in microprocessors with Fully Integrated Voltage Regulators (FIVR). The method is based on averaged state-space models of FIVR and the Vccin network derived from the pole-residue models.