The UC3584 is a low voltage, Secondary Side Synchronous Post Regulator. It is intended to be used for auxiliary output voltage regulation in single secondary winding, multiple output power supplies (for more details refer to the Application Section of this Data sheet). The UC3584 is most suited for systems where the main output is regulated between 5V and 14V. Output voltages regulated by the UC3584 can range from virtually 0V up to the output voltage of the main output.