**Application fields and module examples:** 1. **Power inverter:** Applicable to power switches and inverter control in power inverters, providing stable current and voltage conversion. 2. **Electric vehicle controller:** In electric vehicle control systems, it is used for motor drive and power management to achieve efficient power conversion and control. 3. **Battery management system:** Provides reliable current control and voltage stability for battery management systems, suitable for various battery types. 4. **Lighting controller:** In LED lighting systems, it achieves adjustable control of lighting through its negative rated voltage and low on-resistance.