### III. Application fields and module examples WST2303-VB is suitable for a variety of power management and switching circuits, including but not limited to the following fields: 1. **Power management module**: - **Power adapter**: Used in the switching circuit of the power adapter to achieve stable power output and overload protection. - **Charger**: Used in the charger to control and adjust the charging current to provide safe and efficient charging functions. 2. **Switching circuit**: - **DC-DC converter**: Used in the DC-DC converter to control the switching circuit to achieve energy conversion between different voltage levels. - **Power switch**: Used in various power switching circuits to achieve switch tube control and power management. 3. **LED driver**: - **LED lighting**: Used in LED drivers in LED lighting systems to control the brightness and power of LEDs and achieve adjustment and control of lighting effects. - **LED display screen**: It is used as LED driver in LED display screen to provide LED driving and control functions to ensure the stable operation of the display screen. Through the above application examples, it can be seen that WST2303-VB has a wide range of application prospects in the field of power management and switching circuits, providing stable and reliable power supply and switch control functions for various electronic equipment and systems.