1. **audio amplifier: **In audio amplifier circuits, it is used to provide stable power amplification to ensure high fidelity and low distortion of audio output. 2. **Audio driver: **Used to drive speakers and headphones, providing clear and efficient audio signal transmission.3. **Power management: **In the power management module, it helps realize high-efficiency power switches and improves the energy efficiency of the overall system. 4. **communication device: **Can be used as RF(Radio frequency) amplifiers and other communication equipment to ensure stable signal transmission.Please note that specific application and module designs may need to be adapted and verified based on specific project needs.