Droop adjusts a converter's output voltage based on its load current to optimize transient response and minimize the required output capacitance. Passive droop is done with a resistor.

Programmable Active Droop makes the amount of droop settable with a resistor, so that it can be tailored individually for each application. This bulletin discusses the operation of these methods in detail, and shows the details of component selection, including worst-case analysis.

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