Patent ID: 8026636

Claim:
An apparatus for supplying power to an electronic device, the apparatus comprising: a main power input; a plurality of DC/DC converters having an input connected to the main power input and configured to output power to a plurality of first power-consuming loads; a plurality of low dropout (LDO) regulators having an input connected to an output of the plurality of DC/DC converters, the plurality of LDO regulators configured to output converted power to a plurality of second power-consuming loads; and a controller operatively connected to the plurality of DC/DC converters, and the plurality of LDO regulators, the controller configured to variably control a supply of power from one of the plurality of DC/DC converters to one of the plurality of LDO regulators as an LDO regulator input power based on whether a corresponding one of the plurality of first power-consuming loads is off or will be turned on.