GENERAL DESCRIPTION
No external inductor is required for operation. Using three small capacitors, the AME7720 / 7721 can deliver up to 60mA to the voltage regulated output. Furthermore, the combiwww.DataSheet4U.com nation of few external components and small package size keeps the total converter board area to a minimum in space restricted applications. The AME7720 / 7721 contains a thermal management circuit to protect the device under continuous output short circuit conditions. The AME7720 / 7721 is available in SOT-25 / SOT-26 package and is rated from -40OC to 85OC. Step-Up/Step-Down 60mA Regulated Charge Pump n APPLICATIONS
l Cellular Phone l Digital Camera l PDAs LCD display l LED/Display Back Light Driver l Smart Card Reader l SIM Card Supply l PCMCIA Card l LCD Display n Functional Block Diagram AME7720 VIN φ2 CC+ φ1 n FEATURES
l Input Voltage Range: 5V Version: 2.7V to 5.5V 3.3V Version: 1.8V to 5.5V l Accurate to with ±5% l Output Current: 5V Version: 60mA with VIN>=3.0V 3.3V Version: 60mA with VIN >=2.2V l 1MHZ Switching Frequency l Shutdown Mode < 1µA (AME7720) l Short Circuit Protection:Typ.
AME
