AIC3417

AIC3417 1.0A Synchronous Step-Up Converter  FEATURES   Output Voltage Range: from 2.5V to 5.5V.  Up to 94% Efficiency  Up to 1.0A Continuous Output Current  Allow EN pin Floating  Built-in current mode compensation  Built-in Protection: Over Current, Over Voltage, Over Temperature  Optional Active High/Low EN pin  Logic Controlled Shutdown: < 1μA  Output Disconnect by Shutdown Function  Built-in Soft Start  APPLICATIONS  DESCRIPTION The AIC3417 is a high efficiency, step-up DC/DC con- verter with high light load efficiency. The true output disconnect function eliminates inrush current and al- lows Vout to go to zero during shutdown. The AIC3417 is suited for high current boost application such as battery backup supplies or wireless devices powered by one Li-Ion battery or two Alkaline, Ni-Cd, Ni-MH battery. The device includes a 50mΩ N-Ch MOSFET switch and a 60mΩ P-Ch MOSFET switch; it can provide high efficiency at 1.0A continuous output current. High efficiency is achieved at light load when PSM Mode operation is entered, where the IC’s quiescent current is lower than 20μA on Vout. The AIC3417 is available in the small 3mm x 3mm DFN-10 and SOP-8(EP) package.  Li-Ion Type Battery Operated Products  Power Bank  Handheld Devices  Portable Products  TYPICAL APPLICATION CIRCUITS Typical Application Circuit for DFN-10 Package Analog Integrations Corporation Si-Soft Research Center 3A1, 1 Li-Hsin 1st Rd., Science Park, Hsinchu 300, Taiwan, R.O.C. TEL: 8...