Cxlb7368 is a complete single lithium-ion battery with constant current / constant voltage linear charger. The sop8 package with heat sink at the bottom and the small number of external components make the cxlb7368 an ideal choice for portable applications. Cxlb7368 can work with USB power and adapter power. Because of the internal PMOSFET architecture and anti reverse charging circuit, no external isolation diode is needed. Thermal feedback can adjust the charging current automatically, so as to limit the chip temperature under high power operation or high ambient temperature conditions. The charging voltage is fixed at 4.2V 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 cxlb7368 will automatically terminate the charging cycle. When the input voltage (AC adapter or USB power supply) is removed, cxlb7368 automatically enters a low current state, reducing the battery leakage current to less than 1uA. The cxlb7368 can also be placed in shutdown mode when there is power supply to reduce the power supply current to 55ua. Other features of hcxlb7368 include undervoltage blocking, automatic recharging, and two LED status pins to indicate charging and ending.