Product introduction：
Product Introduction
**SMG3402-VB** is a single N-channel MOSFET in a small SOT23-3** package, suitable for low-voltage switching power supplies, load switches, and other high-efficiency power management applications. The maximum drain-source voltage (VDS) of this MOSFET is **30V**, the gate-source voltage (VGS) is **±20V**, and the maximum drain current (ID) is **6.5A**. Its superior on-resistance characteristics enable it to perform well in high-efficiency, low-power systems. SMG3402-VB uses **Trench** technology and has a low on-resistance of **33mΩ** (VGS=4.5V) and **30mΩ** (VGS=10V), which reduces losses during current transmission and improves overall system efficiency. It is widely used in consumer electronics, mobile devices, and portable power 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-N |
30V |
20（±V） |
1.7V |
6.5A |
|
|
30mΩ |
|
Detailed parameter description
- **Package type**: SOT23-3
- **Configuration**: Single N-channel
- **Drain-source voltage (VDS)**: 30V
- **Gate-source voltage (VGS)**: ±20V
- **Threshold voltage (Vth)**: 1.7V
- **On-resistance (RDS(ON))**:
- At VGS=4.5V: **33mΩ**
- At VGS=10V: **30mΩ**
- **Drain current (ID)**: 6.5A
- **Technology**: Trench technology
- **Maximum power dissipation**: Depends on working conditions and heat dissipation design
- **Operating temperature range**: -40°C to +150°C
- **Maximum gate voltage**: ±20V
Domain and module applications：
Application areas and module examples
1. **Low voltage power management**
Due to its **low on-resistance** and **small package**, the SMG3402-VB is ideal for low voltage **power management** systems. This MOSFET can be used for efficient power switching and is particularly suitable for power management systems in **mobile devices** and **portable electronics**. Its **6.5A** maximum drain current enables it to handle power requirements in small systems.
2. **Load switch control**
In **load switch control**, the SMG3402-VB can be used as a load switch element to provide efficient current switching functions. Especially in **battery-powered devices**, the low on-resistance and small package make it very suitable for fast switching and control of loads. By reducing switching losses, the energy efficiency of the system is improved and the battery life is extended.
3. **DC-DC Converter**
In **DC-DC Converter**, SMG3402-VB can be used as a switching element for efficient power conversion. Its **low RDS(ON)** characteristics ensure that the power loss in the system is minimized during high-frequency conversion. It is particularly suitable for **high-frequency switching power supplies** (such as efficient chargers and battery-powered modules), and can provide excellent performance and reliability.
4. **Portable Battery-Powered System**
Due to its **low on-resistance** and **small package**, SMG3402-VB is very suitable for **portable battery-powered systems**. Its superior switching characteristics can effectively manage the battery charging and discharging process and prevent safety issues such as overcurrent or overvoltage. It is very suitable for portable electronic products, especially **mobile power supplies** or **handheld devices**.
5. **LED driver**
SMG3402-VB can be used as a switching element in **LED drive circuit** to provide stable current. Low **RDS(ON)** can ensure that the current is uniform and stable in the LED system, reducing current imbalance or power waste, and is especially suitable for **small LED lamps** and **compact lighting equipment**.
6. **High-efficiency power switch**
In **high-efficiency power switch** systems, SMG3402-VB provides high-efficiency switching capabilities, especially suitable for **battery management systems** and **mobile device power modules**. Its **low power loss** and **higher drain current handling capability** enable it to excel in current control applications, and is widely used in low-power consumer electronics, smart watches, health tracking devices, etc.
* 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
Technical support：
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