Cxlb7311b is a 1A single lithium-ion battery with constant current / constant voltage linear charger. The esop8 package with heat sink at the bottom and fewer external components make the cxlb7311b an ideal choice for portable applications. Cxlb7311b can work with USB and adapter power. Because of the internal PMOSFET architecture and anti backflow circuit, no external isolation diode is needed. The thermal protection can adjust the charging current adaptively to limit the chip temperature under high power operation or high ambient temperature. The charging voltage is fixed at 4.2v/4.35v, and the charging current can be set externally through a resistor. When the charging current drops to 1 / 10 of the setting value after reaching the final floating charge voltage, the cxlb7311b will automatically terminate the charging cycle. In standby mode, cxlb7311b automatically enters into a low current state to reduce the battery leakage current to less than 2ua. Cxlb7311b can also be put into shutdown mode through CE when there is power supply, so as to reduce the power supply current to 50ua