Patent ID: 7777471

Claim:
A method for powering on and off a set of regulators in an analog baseband chip, wherein each regulator is configured to provide a predefined voltage, the method comprising: storing in a register disposed on the analog baseband chip at least n bits, where n is an integer larger than 2; assigning in the analog baseband chip, to each regulator, a number of m bits of the n bits, wherein m times a number of the regulators is smaller than or equal to n; programming in the analog baseband chip the at least n bits in a sequence of m bits that describes a time when each regulator is powered on or off and an order in which each regulator is powered on or off upon reception of a sleep signal; receiving in the analog baseband the sleep signal that indicates whether the set of regulators are powered on or off; and instructing, based on sequence of m bits stored in the registers disposed on the analog baseband chip, the set of regulators to power on or off based on the received sleep signal.