Controller for multi-phase switching converter

Abstract

A controller for a multi-phase switching converter including multiple phase circuits is provided. The multi-phase switching converter is configured to receive an input voltage, generate an output voltage, and provide a load current. The controller includes a current threshold generator configured to generate a first threshold current that is dependent on the input voltage and/or the output voltage, a comparator system configured to compare the load current to the first threshold current, and a phase control system configured to change the number of active phase circuits based on the comparison between the load current and the first threshold current.

Dependencies are inferred from the claim text.