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SC8934 DATASHEET DRAFT SOUTHCHIP SEMICONDUCTOR SOUTHCHIP CONFIDENTIAL, SUBJECT TO CHANGE SC8934 High Efficiency, Synchronous, Bi-directional Buck Charger Converter with Integrated MOSFETs and I2C Interface 1 Description 2 Features SC8934 is a synchronous buck charger with reverse boost  Charging management, including trickle charging, CC discharging function. It integrates two N-channel MOSFETs charging, CV charging and charging termination function with ultra-low RDS_ON and can support up to 12V high  Wide VBUS voltage operation range up to 13.5V efficiency charging and discharging operation.  Programmable battery voltage from 4.1V to 4.5V In charging mode, it steps down the input voltage to  Programmable switching frequency from 300 to 750Khz effectively charge the single cell battery. SC8934 supports  Integrated MOSFET with ultra-low RDS_ON trickle charging, constant current (CC) charging and constant voltage (CV) charging management functions automatically.  Support 3V VBAT to 12V 2A output with 92% efficiency When working in discharging mode (reverse boost mode), it  Programmable VINREG voltage can support up to 12V output and achieve up to 95%  Programmable current limit with 25mA/step efficiency with 3.7V battery voltage for 9V2A output load.  Programmable output voltage with 10mV/step The SC8934 features I