The PS3120A is a low no ise switched capacitor voltage produces a regulated output voltage from a 2.7V to 4.5V external parts count（one flying capacitor and two small bypass capacitors at VIN and VOUT）make the PS3120A ideally suited for small，battery-powered applications. The PS3120A have thermal shutdown capability and can survive a continuous short circuit from VOUT to GND.A low current shutdown feature disconnects the load from VIN and redu
