Product introduction：
DMT31M9LFVWQ-7-VB is a Single N-MOSFET deeply optimized for low-voltage, high-power switching applications. Using Trench technology, it combines ultra-low on-resistance with excellent thermal reliability. The DFN8(3X3) package strikes a good balance between thermal performance and board space. With 30V withstand voltage, 70A continuous current-carrying capability, and a minimum on-resistance of 2mΩ, it is an ideal choice for high-current applications such as server power supplies, power tools, and automotive electronics, particularly suitable for replacing traditional DPAK or SOP-8 packages to achieve higher power density and lower system cost.
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Product parameter：
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds2.5 |
Rds4.5 |
Rds10 |
Technology |
| DFN8(3X3) |
Single-N |
30V |
|
1.7V |
70A |
|
3(mΩ) |
2(mΩ) |
Trench |
| VB Package |
Configuration |
VCE |
VGE |
VGEth(V) |
VCEsat15V |
ICE |
Technology |
| DFN8(3X3) |
Single-N |
|
|
|
|
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds18 |
Technology |
| DFN8(3X3) |
Single-N |
30V |
|
1.7V |
70A |
|
Trench |
| VB Package |
Configuration |
VDS(V) |
VGS |
Vthyp（V） |
ID(A) |
Rds6 |
Technology |
| DFN8(3X3) |
Single-N |
30V |
|
1.7V |
70A |
|
Trench |
| VB Package |
Polarity |
Vz / VR |
Pd |
VF |
IF |
IR |
Cd |
Type |
| DFN8(3X3) |
Single-N |
|
|
|
|
|
|
|
- **VDS=30V**: Suitable for 5V/12V/24V systems, providing ample switching voltage spike margin, reducing avalanche breakdown risk.
- **VGS=±20V**: Wide gate drive window, compatible with 1.8V~12V logic levels, can directly interface with MCU/PMIC, simplifying drive circuitry.
- **Vth=1.7V (Typical)**: Reliable turn-on under low-voltage drive, suitable for battery voltage fluctuation scenarios, ensuring full conduction.
- **RDS(on)=2mΩ @ VGS=10V**: Ultra-low on-resistance, extremely low full-load conduction losses, significantly reducing temperature rise and minimizing heat dissipation copper area.
- **RDS(on)=3mΩ @ VGS=4.5V**: Maintains very low impedance even under low-voltage logic drive, suitable for efficient operation in 5V drive systems.
- **ID=70A**: Strong continuous current handling capability, meeting high-power load and transient peak demands with ample margin.
- **Package DFN8(3X3)**: Small size, low parasitic inductance, supports high-frequency switching, optimizes thermal path, and enhances power density.
Domain and module applications：
- **Server / Telecom Power Supplies**: Used in synchronous rectification and OR-ing circuits, ultra-low on-resistance significantly reduces losses, improving power conversion efficiency.
- **Power Tools & Garden Machinery**: 70A high current capability combined with low on-resistance supports high-torque startup and continuous heavy-load output, with lower controller temperature rise.
- **Battery Protection & BMS**: Extremely low impedance reduces protection board self-heating; fast switching characteristics ensure reliable shutdown during overcurrent/short-circuit conditions.
- **Low-Voltage High-Current DC-DC Converters**: Replaces Schottky diodes for synchronous rectification, improving heavy-load efficiency by 2~4%, facilitating module miniaturization.
- **Automotive Low-Voltage Auxiliary Systems**: 30V voltage margin combined with a wide operating temperature range, suitable for 12V/24V automotive buses, ideal for body control, lighting, and motor drives.
- **High-Power Parallel Applications**: DFN8 package facilitates easy parallel connection and current sharing of multiple tubes, easily scaling to meet hundred-ampere level current requirements.
**Selection Summary**: The DMT31M9LFVWQ-7-VB achieves an excellent balance between ultra-low on-resistance, high current-carrying capacity, package size, and thermal performance. It is a high-performance, general-purpose choice for 30V low-voltage, high-power switching applications, especially suitable for projects with strict requirements on efficiency, power density, and reliability.
* 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：
* If you have any questions about the product, please fill out the form to submit, we will reply you within 24 hours
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