Descriptions
SC8723 is a synchronous 4-switch buck-boost converter
with four integrated switches. It provides excellent power
efficiency and voltage regulation no matter the output
voltage is higher, lower or equal to the input voltage.
SC8723 supports very wide input and output voltage range.
It can support applications from 2.7V to 24V input range and
3V to 22V output range and provides up to 3.5A output
current.
SC8723 employs average current-mode control. The output
voltage is adjusted by FB pin with resistors. The switching
mode (PSM /FPWM) and the switching frequency can be
adjusted by external setting. The device also provides
programmable output current limit which supports flexible
design for different applications.
SC8723 supports internal current limit, input under voltage
protection, output over voltage protection, output short
protection, FB short circuit protection and over temperature
protection to ensure safety under different abnormal
conditions.
The IC is in a 22 pin 3x3 QFN package.

Applications
• USB Type C Hub
• Power Bank with Quick Charge
• Wireless Charger
• Wall Adapter
• Industry Power Supplies

Features
• High Efficiency Buck-Boost Conversion
• Few External Components
• Integrated Low RDS(ON) Switches
• Wide VIN Range: 2.7 V to 24 V
• Wide VOUT Range:3V to 22V
• Fixed 5.1V VOUT with FB tied to GND
• Up to 3.5A Output Current
• 250K/500K/750K/1MHz Adjustable Switching Frequency
• Adjustable Output Current Limit
• Forced PWM Mode/ PSM Mode Selectable
• EN control and Programmable UVLO
• Internal Soft Start
• Absolute Input and Output Over Voltage Protection
• Output Short Protection with Hiccup Mode
• Thermal Shutdown Protection
• Under Voltage Protection
• Over Voltage Protection
• QFN-22 FC 3 x 3 Package