Product introduction：
SMG2319P-VB MOSFET Detailed Product Information
**Product Introduction**
The SMG2319P-VB is a single P-channel MOSFET in a SOT23-3 package, suitable for low-voltage power management and switch control applications. With a drain-source voltage (V_DS) of 30V, the device can provide efficient power conversion and load control, and is particularly suitable for low-power, high-frequency applications. Its low on-resistance and high current carrying capacity make it very popular in low-voltage power supplies and miniaturized systems, and is widely used in consumer electronics, portable devices, and battery-driven applications.
**Product
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Product parameter：
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds2.5 |
Rds4.5 |
Rds10 |
Technology |
| SOT23-3 |
Single-P |
-30V |
20（±V） |
-1.7V |
-5.6A |
|
|
46mΩ |
|
**
- **Package type**: SOT23-3, a compact three-pin package suitable for space-limited applications, especially for small circuit boards and highly integrated systems.
- **Configuration**: Single P-channel MOSFET, suitable for applications requiring reverse control or load switching, especially when used with N-channel MOSFET, it can achieve efficient reverse switch control.
- **V_DS (drain-source voltage)**: -30V, suitable for low-voltage systems, ensuring that the device can work stably at this voltage, suitable for efficient load control and switching applications.
- **V_GS (gate-source voltage)**: ±20V, providing sufficient gate voltage adjustment range to meet different driving requirements and ensure the reliability and stability of MOSFET during the switching process.
- **V_th (gate threshold voltage)**: -1.7V, the lower gate threshold voltage allows it to be reliably turned on at a lower gate voltage, adapting to the needs of low-voltage driving and providing flexible switching control capabilities.
- **R_DS(ON)**:
- 54mΩ @ V_GS = 4.5V
- 46mΩ @ V_GS = 10V
Low on-resistance helps reduce power loss and improve efficiency, especially in load switching and power management to keep heat generation low.
- **I_D (drain current)**: -5.6A, suitable for low-power and medium-current applications, meeting low-power drive and switching requirements, ensuring reliable operation of the device in high-efficiency power supply and load control.
- **Technology type**: Trench technology, with low on-resistance and high switching speed, suitable for efficient and fast-response switch control systems.
Domain and module applications：
1. **Load Switch and Power Management**
SMG2319P-VB excels in load switching and power management systems, especially for efficient power switching under low voltage conditions. Its low on-resistance helps reduce power loss and make the system run more efficiently.
**Example**: In portable devices and mobile applications, SMG2319P-VB can be used in power management systems to provide stable and reliable power supply during system startup and shutdown through its efficient switch control, extending the battery life of the device.
2. **Reverse Current Protection**
Due to its P-channel characteristics, SMG2319P-VB is particularly suitable for reverse current protection circuits. It can quickly disconnect the circuit when the current flows in the reverse direction, thereby protecting sensitive components in the system.
**Example**: In a battery charger, SMG2319P-VB can be used to protect the battery from damage caused by reverse current. When the battery voltage is too low or the charger is not working properly, SMG2319P-VB can quickly cut off the current to prevent the battery from being over-discharged.
3. **Switching Power Supply (Buck/Boost Converter)**
In a DC-DC converter, SMG2319P-VB can be used as an efficient switching element for voltage step-down or step-up conversion. Its low R_DS(ON) can reduce energy loss during the conversion process, thereby improving overall efficiency.
**Example**: In the power modules of laptops, smartphones and other portable devices, SMG2319P-VB can be used in DC-DC converters to achieve efficient voltage conversion and ensure stable operation of the device.
4. **Small Battery Driven System**
In a small battery-driven system, SMG2319P-VB can help improve battery efficiency and extend battery life through its low on-resistance characteristics, while effectively managing the battery charge and discharge process.
**Example**: In battery-powered devices such as wireless headphones and portable audio, the SMG2319P-VB can be used as a switching element in the battery power management system for efficient battery switching and current regulation.
5. **Load and motor control**
In low-power motor control systems, the SMG2319P-VB can be used for load switching and motor driving, especially for scenarios that require reverse current control.
**Example**: In small power tools or smart home devices, the SMG2319P-VB can control the start and stop of the motor to ensure stable operation of the device.
6. **Consumer electronics**
The SMG2319P-VB is also widely used in consumer electronics, especially in applications that require small size, high-efficiency power management and switch control.
**Example**: In smart home controllers, sensor modules and other devices, the SMG2319P-VB can be used for efficient power control and load switching to ensure stable device operation and extend battery life.
* Please note: the above is only an example application scenario, the specific application depends on the requirements and conditions of the system design. When using this device, consult its data sheet for detailed technical specifications and features
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