Glossary Definition for Switching Controller

Glossary Term: Switching Controller 


What is a Switching Controller?

A switching controller is an IC that controls the timing of the switching of a power transistor, usually a FET, used in a switching regulator. In some switching regulators, the FET is a discrete component, external to the controller, while in others, the FET is located in the same IC as the switching controller. The switching controller monitors the output of the switching regulator, as part of a feedback control loop, to ensure the output is kept constant under normal operating conditions.

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