VBsemi US3400-VB is an N-Channel field effect transistor in SOT23-3 package, mainly used in electronic devices and modules. The following is the detailed parameter description and application introduction of the product:

- **Parameter Description:**
- Package type: SOT23-3
- Channel type: N—Channel
- Rated voltage: 30V
- Rated current: 6.5A
- On-resistance (RDS(ON)): 30mΩ @ VGS=10V, VGS=20V
- Threshold voltage (Vth): 1.2~2.2V

- **Application Introduction:**
US3400-VB is widely used in various electronic fields and has the following application features:
- DC-DC converter
- Power switch
- Motor drive
- Power management module

- **Fields and module applications:**
- **DC-DC converter:** Used in DC-DC converters to achieve efficient energy conversion.
- **Power switch:** Used to build power switch modules to achieve power switch control.
- **Motor drive:** Used to design motor drive circuits to achieve efficient motor control.
- **Power management module:** Used to build various power management modules to ensure stable power supply for equipment.

These parameters and application information can help engineers choose appropriate components in their designs to meet the needs of their specific application areas.