TPS61322xx 1.8A Synchronous Boost Converters

Texas Instruments TPS61322xx 1.8A Synchronous Boost Converters use only 6.5µA of quiescent current. The TPS61322xx provides a power-supply solution for products powered by an alkaline battery, NiMH rechargeable battery, or one-cell Li-ion battery. The boost converter is based on a hysteretic control topology using synchronous rectification to obtain maximum efficiency at minimal quiescent current. The TPS61322xx also allows the use of small external inductors and capacitors. Higher than 90% efficiency is achieved at a 10mA load from 1.5V input to 2.2V output conversion. The Texas Instruments TPS61322xx can also support high-output current applications with an external Schottky diode. The TPS613222A provides higher than 500mA output current capability at 3.0V input voltage to 5.0V output voltage conversion with an external Schottky diode in parallel with the internal rectifier FET.