Detailed parameters:
- Product model: ME2349D-VB
- Silk screen: VB2290
- Brand: VBsemi
- Package: SOT23
- Channel type: P-Channel
- Maximum voltage: -20V
- Maximum current: -4A
- On-resistance: 57mΩ@VGS=4.5V,VGS=12V
- Threshold voltage: Vth=-0.81V

Application introduction:
ME2349D-VB is a P-Channel trench MOSFET, using SOT23 package, suitable for a variety of fields and modules. The following are the main application areas of this product:

1. **Power management module: ** Due to its excellent current and voltage characteristics, it is suitable for power management modules to ensure efficient and reliable power supply.

2. **DC-DC converter:** As a P-Channel MOSFET, it can be used as a power switch in a DC-DC converter to improve the energy efficiency of the system.

3. **Current limiting and protection module:** With low on-resistance, it can be applied to current limiting and overload protection modules to provide effective protection for the system.

4. **Signal switch:** In various electronic devices, such as communication equipment, audio amplifiers, etc., it can be used as a signal switch element.

These characteristics make ME2349D-VB widely used in power management, electronic equipment control, and power regulation.