**VBsemi product detailed parameter description and application introduction**

**Model:** RQJ0204XGDQATL-E-VB

**Silkscreen:** VB2290

**Brand:** VBsemi

**Parameters:**
- Package: SOT23
- Channel type: P—Channel
- Maximum operating voltage: -20V
- Maximum current: -4A
- On-state resistance: RDS(ON)=57mΩ @ VGS=4.5V, VGS=12V
- Threshold voltage: Vth=-0.81V

**Application introduction:**
VBsemi's RQJ0204XGDQATL-E-VB model adopts SOT23 package and is a P—Channel channel device. Its main features include a maximum operating voltage of -20V, a maximum current carrying capacity of -4A, and low on-state resistance at different voltages.

**Application areas and module examples:**
1. **Power management module:** Due to the P-Channel characteristics of RQJ0204XGDQATL-E-VB, it is suitable for power switching and inverter design in power management modules. Its low on-state resistance at different voltages makes it an ideal choice for high-efficiency energy consumption modules.

2. **Battery protection module:** In the battery protection circuit, a reliable switching device is required to achieve control of battery charging and discharging. The high operating voltage and moderate current characteristics of RQJ0204XGDQATL-E-VB make it suitable for battery management modules.

3. **LED driver module:** As a switching element in the LED driver circuit, this type of P-Channel device can achieve efficient power control in LED lighting modules.

In general, RQJ0204XGDQATL-E-VB is suitable for various electronic modules that require P-Channel devices, especially in the fields of power management, battery protection and LED driving.