Patent 7402958 was granted and assigned to Intel on July, 2008 by the United States Patent and Trademark Office.
According to one embodiment of the present invention, a voltage regulator is disclosed. The voltage regulator includes a step-down portion to step down an input voltage to a desired voltage when the input voltage is provided by a battery power source; and a step-up portion to step up the input voltage to the desired voltage when the input voltage is provided by a system rail. In accordance with another embodiment of the present invention, the voltage regulator provides power to a display device such as an LCD, a flat panel display, a plasma screen, and a TFT display.