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