DUAL SUPPLY

摘要

The present disclosure provides a power delivery scheme to provide a parallel regulation feature for integrated voltage regulators (IVRs).

主权项

1. A chip, comprising:
an input rail to receive an external DC supply voltage at a first level for a first mode and at a second level for a second mode, the second level being smaller than the first level; an integrated switching-type voltage regulator (IVR) having an input coupled to the input rail and an output coupled to an output rail to provide a regulated DC voltage; and a lower voltage regulator (LVR) having an input coupled to the input rail and an output coupled to the output rail to provide the regulated DC voltage in place of the IVR when the external DC supply is in the second mode.