Abstract: An electronic system having a linear voltage regulator and method of operating the linear voltage regulator. A linear voltage regulator of an electronic system has at least three ballast devices. The method of operating includes producing a voltage at an output terminal that is electrically coupled to a node of a first one of the three or more ballast devices; receiving a power mode indication; activating a first additional ballast device of the linear voltage regulator to add first additional capacitance to a load corresponding to the power mode; generating one or more successively delayed ballast control signals based at least in part on the power mode indication; and activating, using the successively delayed ballast control signals, second additional ballast devices of the linear voltage regulator to add second capacitances to the load of the linear voltage regulator.

Abstract: An electronic system having a linear voltage regulator and method of operating the linear voltage regulator. A linear voltage regulator of an electronic system has at least three ballast devices. The method of operating includes producing a voltage at an output terminal that is electrically coupled to a node of a first one of the three or more ballast devices; receiving a power mode indication; activating a first additional ballast device of the linear voltage regulator to add first additional capacitance to a load corresponding to the power mode; generating one or more successively delayed ballast control signals based at least in part on the power mode indication; and activating, using the successively delayed ballast control signals, second additional ballast devices of the linear voltage regulator to add second capacitances to the load of the linear voltage regulator.

Abstract: A linear voltage regulator including a pass element, an error amplifier, and in-rush current protection (ICP) circuitry. The pass element is configured to produce an output voltage across a capacitor based on a received input voltage. The error amplifier is configured to output a control voltage based at least in part on the output voltage and a reference voltage. The control voltage is used to control a flow of output current through the pass element. The ICP circuitry is coupled to the pass element and the error amplifier and configured to maintain the output current below a threshold level while charging the capacitor from a discharged state to the output voltage.