3.7V li-ion/lipo charger and 5v booster Module (IP5306)

LiPo battery charger, protector, and 5V booster based on the IP5306 featuring: synchronous switch-mode charging with up to 2.1A / 91% efficiency, discharging with up to 2.4A, 5V boost converter with up to 92% efficiency, integrated power-path management (charging battery and 5V output at the same time), voltage-based fuel gauge indication with 4 LEDs, on/off key, smart load detector (switching to standby mode automatically), less than 100uA standby current, charging/boosting with a single inductor, output over-current, over-voltage, short-circuit protection, input over-voltage, over-current protection, battery over-charge, over-drain, over-current protection, thermal shutdown. Key functions: If the button is pushed longer than 30ms but shorter than 2s, IP5306 will identify the action as a short push. Short push will activate state of charge (SOC) indicator LEDs and a step-up converter. If two short pushes are detected within 1s, IP5306 will deactivate the step-up converter, SOC indicator LEDs, and PWR LED (flashlight). If the button is pushed longer than 2s, IP5306 will identify the action as a long push. Long push will enable or disable PWR LED (flashlight). If the button is pushed shorter than 30ms, IP5306 will ignore the action.