Patent ID: 8996903
Filing Date: 2015-03-31
Classification: G06F,Y02D

Abstract:
1. An integrated circuit comprising: a Configurable Switching Power Supply Pulse Width Modulator (CSPSPWM), wherein the CSPSPWM is part of a switching power supply that generates a supply voltage from a power source, and wherein the CSPSPWM includes a low current linear regulator supplied by a current directly from the power source; a hibernate circuit, wherein the hibernate circuit includes a timer, and wherein the hibernate circuit is operable in a hibernate mode in which the hibernate circuit disables the CSPSPWM and uses power supplied from the low current linear regulator to power the timer; a configuration register, wherein the configuration register has a hibernate mode enable bit; and a processor that is powered by the supply voltage generated by the switching power supply, wherein the processor is configured to write to the configuration register thereby causing the hibernate mode enable bit to be set such that the hibernate mode is enabled, and wherein an event signal causes the hibernate mode enable bit to be set such that the hibernate mode is disabled.