Skyworks Solutions, Inc.
Shutdown mode for bandgap reference to reduce turn-on time

Abstract:

Examples of the disclosure include a controller having a mode of operation including one of an on mode and an off mode, the controller including a voltage rail node, a reference node, at least one powered component configured to generate a bandgap voltage signal based on a rail voltage at the voltage rail node, a switching device coupled in series between the reference node and the at least one powered component and configured to provide a conductive path through the at least one powered component from the voltage rail node to the reference node in response to the controller being in the on mode, and to interrupt the conductive path through the at least one powered component in response to the controller being in the off mode.