**Applicable fields and modules:**
1. **Portable electronic products:**
Due to its small package size and moderate power capability, the VBQF1104N is ideally suited for designing power management modules for portable electronics. For example, battery management systems and charge and discharge control modules in products such as smartphones, tablets, and portable power supplies.

2. **LED Lighting Controller:**
In LED lighting systems, VBQF1104N can be used to design low-power LED drivers and controller modules. Its low power loss and stable power output make it an ideal choice among LED lighting controllers, which can achieve energy-saving and efficient lighting effects.

3. **Small home appliance controller:**
In small home appliances, such as electric kettles, induction cookers and microwave ovens, VBQF1104N can be used to design power control and power management modules. Its small package size and moderate power capability enable high-efficiency energy conversion and stable power output.

4. **Medical equipment power module:**
In medical equipment, VBQF1104N can be used to design low-power power modules, such as patient monitors, medical imaging equipment, and handheld medical equipment. Its reliability and stability ensure the safety and long-term stable operation of medical equipment.