SOUTHCHIP SC8721B
SC8721B is a synchronous 4-switch buck-boost converter with four integrated switches. It is able to effectively output voltage no matter it is higher, lower or equal to the input voltage. It can support applications from 2.7V to 22V input range and 0.7V to 22V output range.FEATURES
● High Efficiency Buck-Boost Conversion● Integrated Switches, 10 mΩ for Q1/4, 20 mΩ for Q2/3
● Wide VIN Range: 2.7 V to 22 V, 25V sustainable
● Wide VOUT Range: 0.7 V to 22 V, 25V sustainable
● Dynamic Output Voltage Control
● Adjustable Switching Frequency
● Output Voltage Cable Drop Compensation
● I2C Programmable Output Voltage
● I2C Programmable Output Current Limit
● Output Current Monitor
● Under Voltage Protection, Over Voltage Protection
● QFN-21 4 x 4 Package 3
APPLICATIONS
● E-cigarette● USB Power Delivery
● Wall Adapter
● Type C Hub
● Industry Power Supplies 4 Device Information Part Number SC8721BQFER Package 21 pin QFN Dimension 4.0mm x 4.0mm x 0.75mm Copyright © 2019, Southchip Semiconductor Technology (Shanghai) Co., Ltd. 1 SOUTHCHIP SEMICONDUCTOR 5 Typical Application Circuit VIN SC8721B DATASHEET SOUTHCHIP SEMICONDUCTOR Rs VOUT VIN BT1 SW1 SW2 BT2 VOUT VSET VCC PGND CSP CSN CE VDD FB SCL SDA CSO COMP AGND Host Control Typical application circuit 1. current sense at VOUT Optional Copyright © 2019, Southchip Semiconductor Technology (Shanghai) Co., Ltd.