Current Excursion Protection (CEP)

This power management is a Processor integrated detector which senses when the Processor load current exceeds a preset threshold by monitoring for a Processor power domain voltage droop at the Processor power domain IMVPVR sense point. The Processor compares the IMVPVR output voltage with a preset threshold voltage (VTRIP ) and when the IMVPVR output voltage is equal to or less than VTRIP , the Processor internally throttles itself to reduce the Processor load current and the power.

IMVP9.2 VRs enhance the CEP detector by adding a cycle by cycle current limiting feature where the IMVPVR quickly enters cycle by cycle current limit (becomes a current source) with the VR output current limited to a preset value (ITRIP ) as set in the ICC_​limit register.