**Application fields and module examples:** 1. **Electric vehicle power management system:** As the negative power switch of electric vehicles, it ensures efficient and stable battery system operation. 2. **Industrial automation equipment:** In the negative power switch circuit, it realizes efficient current control and is suitable for various automation equipment. 3. **Power inverter module:** Used in power inverter circuits, responsible for current control, ensuring stable and reliable operation of the inverter. **Note:** The above examples are for reference only, and actual applications need to be adjusted according to specific circuit design and requirements.