Voltage regulator and control circuit for supplying voltage to a plurality of subcircuits via a chain of switches

摘要

An example circuit includes a voltage regulator, a controller, and a chain of switches. The voltage regulator is configured to generate a supply voltage, the supply voltage connected to each switch in the chain of switches, and generate a supply voltage status signal, the supply voltage status signal indicating a status of the supply voltage. The chain of switches includes a first switch configured to switch the supply voltage to a first subcircuit of a plurality of sub circuits based on the supply voltage status signal and one or more second switches configured to switch the supply voltage to one or more respective subcircuits of the plurality of subcircuits.

主权项

1. A circuit comprising:
a voltage regulator configured to:
generate a supply voltage in response to an enable signal, the supply voltage connected to each switch in a chain of switches; andgenerate a supply voltage status signal, the supply voltage status signal indicating a status of the supply voltage; a controller configured to transmit the enable signal to the voltage regulator in response to a request signal; and an arithmetic logic unit configured to transmit the request signal; the chain of switches comprising:
a first switch configured to switch the supply voltage to a first subcircuit of a plurality of subcircuits based on the supply voltage status signal; andone or more second switches configured to switch the supply voltage to one or more respective subcircuits of the plurality of subcircuits.