• External OVP Control and Regulation

      - High Absolute Maximum Rating of 20V (VBUS)

      - BAT Voltage Regulation (VBAT REG)

      - BAT Current Regulation (IBAT REG)

• Integrate Input-Side NFET to Block the Reverse Current
• Dual Phase Switched Capacitor Converter Module

      - 8A Output Current Capability

      - Efficiency up to 96.8% when VBAT=4V, IBAT=6A; 

      - Programmable Frequency

• Fully Integrated Power MOSFETs with Extremely Low R_DS(ON)
• 50% Duty Cycle in switched capacitor Mode

      - Voltage Divider: Input Voltage is 2 times of Output Voltage

      - Current Doubler: Output Current is 2 times of Input Current

• Soft-start for Inrush Current Limit
• 9-Channel 12-bit ADC

      - VAC, VBUS, VOUT, VBAT

      - IBUS, IBAT

      - TSBUS, TSBAT, TDIE

• I²C Interface

The SY20797C is a high efficiency switched capacitor charger for high power fast charging applications. As a voltage divider or a current doubler with 50% switching duty cycle, the SY20797C integrates extremely low R_DS(ON) MOSFETs and achieves up to 96.8% efficiency when V_BAT = 4V and I_BAT = 6A. It also provides a 9-channel, 12-bit ADC to monitor input and output voltage, current, and temperature for battery charging management by a host.

The SY20797C offers protection against multiple conditions, including external OVP-FET shutdown for input overvoltage protection, input overcurrent protection, output overvoltage and overcurrent protection, and temperature sensing for VBUS, battery, and die.