**Example application areas and modules:** 1. **Electric vehicle power management system:** Used for negative power switch in electric vehicles to ensure efficient operation of the battery system. 2. **Industrial automation equipment:** In the negative power switch circuit, efficient current control can be achieved, suitable for various automation equipment. 3. **Power inverter module:** Applicable to the current control part of the power inverter to ensure stable and reliable inverter operation. **Note:** The above are only examples, and actual applications need to be adjusted according to specific circuit design and requirements.