Patent ID: 7928707
Filing Date: 2011-04-19
Classification: G05F

Abstract:
1. A method of switching a low dropout regulator, the method comprising: determining an actual active time of a power request from an electronic device; enabling the low dropout regulator in response to said power request at a time corresponding to a start of the actual active time of the power request, for an active enabled time having a duration at least the same as the actual active time and duration long enough to sufficiently settle the output voltage of the low dropout regulator; prolonging the active enabled time of the low dropout regulator relative to the actual active time of the power request, if the active time of the power request is less than a given time for settlement of an output voltage of the low dropout regulator; prolonging the active enabled time of the low dropout regulator relative to the actual active time of the power request, for every power request; and thereafter disabling the low dropout regulator.