Cascaded two-stage power converter and multi-phase power supply system including the same

Abstract

An integrated circuit comprises: a first stage circuit, a second stage circuit, a sync communication module, and an I / O communication module. The first stage circuit is configured to receive a first stage input voltage through a first stage input terminal, and divide the first stage input voltage to generate a first stage output voltage. The second stage circuit is configured to receive the first stage output voltage through a second stage input terminal, and regulates the first stage output voltage to generate a second stage output voltage. The sync communication module is configured to be operable for coupling to a sync communication module of the another integrated circuit in the multi-phase power supply system, and to share a reference clock signal with the other integrated circuits. The I / O communication module, configured to be operable for communicating with a host controller.

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