Product introduction：
SMG5409-VB MOSFET Product Introduction
SMG5409-VB is a single P-channel MOSFET in SOT23-3 package, suitable for low power and high-efficiency switching applications. The maximum drain-source voltage of this MOSFET is -30V, which is suitable for medium voltage and current power switches. Its on-resistance is 46mΩ at VGS = 10V, with low conduction losses and the ability to switch at a lower gate voltage. The threshold voltage (Vth) of SMG5409-VB is -1.7V, which is suitable for low-voltage drive applications. Using Trench technology, it can provide excellent switching performance, low on-resistance and good thermal management capabilities. It is widely used in battery management, DC-DC converters, switching power supplies and other low-power electronic systems.
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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 |
|
SMG5409-VB MOSFET parameter description
- **Package**: SOT23-3
- **Configuration**: Single P channel
- **Maximum drain-source voltage (VDS)**: -30V
- **Maximum gate-source voltage (VGS)**: ±20V
- **Threshold voltage (Vth)**: -1.7V
- **On-resistance (RDS(ON))**:
- @ VGS = 10V: 46mΩ
- @ VGS = 4.5V: 54mΩ
- **Maximum drain current (ID)**: -5.6A
- **Technology**: Trench
Domain and module applications：
SMG5409-VB MOSFET Applications
1. **Low-power power management**:
- SMG5409-VB has significant advantages in battery-driven applications and is suitable for power management systems in low-power devices. For example, devices such as smartphones, portable speakers, and tablets require efficient power conversion and extended battery life. SMG5409-VB can effectively control current flow and reduce energy loss, improving battery efficiency.
2. **DC-DC converter**:
- In DC-DC converters, the low on-resistance of SMG5409-VB makes it very suitable for efficient voltage conversion. It can provide efficient power management during the conversion process and is widely used in devices such as power adapters and LED drivers. Especially in voltage regulation and voltage stabilization applications, it can reduce the heat and loss generated during the conversion process.
3. **Battery Management System (BMS)**:
- In the battery management system, SMG5409-VB can be used as a switch control element to manage the battery charging and discharging process. Its efficient switching capability makes it play an important role in the battery protection circuit to ensure that the battery operates within a safe range. It is suitable for various battery pack management, such as lithium battery management, power battery, etc.
4. **LED Lighting Driver**:
- SMG5409-VB is suitable for LED drive systems due to its low on-resistance and ability to provide efficient current control. LED lighting usually requires efficient power control to ensure stable brightness and long life. This MOSFET can help optimize power control, reduce energy loss and improve system reliability.
5. **Automotive Electronics**:
- In automotive electronic systems, SMG5409-VB can be used as a power switch, especially for automotive lighting, battery charging and electric auxiliary equipment. Its durable characteristics and efficient power management make it very suitable for battery management systems and power distribution modules in the automotive industry.
6. **Portable Electronics**:
- For small electronic products such as smart watches and wireless headphones, the SMG5409-VB is suitable for providing efficient power management due to its low on-resistance and small package. These products have strict requirements on power consumption, so this low-power, long-lasting MOSFET solution is needed.
7. **RF Front-End Module**:
- In the RF front-end module, the SMG5409-VB can be used to switch current and regulate power to ensure the stable operation of the wireless communication system. Its fast switching characteristics make it suitable for high-frequency signal modulation and amplification, especially in wireless communication, radio frequency identification (RFID) and Internet of Things (IoT) devices.
* 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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