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SI3459DV-T1-E3-VB Product details
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SI3459DV-T1-E3-VB is a Single P-MOSFET deeply optimized for medium and low voltage power switching applications. The Trench process balances low conduction loss with fast switching characteristics. The SOT23-6 package strikes a good balance between thermal performance and board space. The combination of 60V voltage rating, 3.5A current capability, and 75mΩ on-resistance makes it a compact, cost-effective alternative to traditional SOP-8 or DPAK packaged devices, especially suitable for space-constrained, high-density mounting applications.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | -60V | -1.7V | -3.5A | 85(mΩ) | 75(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | -60V | -1.7V | -3.5A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | -60V | -1.7V | -3.5A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | MOS |
VDS=-60V: Suitable for 12V/24V/48V systems, providing ample negative voltage spike margin and improving system avalanche ruggedness.
VGS=±20V: Compatible with 2.5V~12V logic level drive, can be directly connected to MCU/PMIC, simplifying external level shift circuits.
Vth=-1.7V (Typical): Low threshold voltage ensures effective turn-on even under low-voltage drive conditions, adapting to battery voltage fluctuation scenarios.
RDS(on)=75mΩ @ VGS=10V: Low on-resistance significantly reduces full-load conduction losses, decreasing the need for PCB heat sink copper.
RDS(on)=85mΩ @ VGS=4.5V: Maintains low resistance at 4.5V logic level, supporting low-voltage drive applications.
ID=-3.5A: Reliable continuous current capability, meeting the power requirements of most portable, home appliance, and automotive auxiliary loads.
Package SOT23-6: Compact size, low parasitic parameters, supports high-frequency switching, while saving PCB area and assembly costs.
Domain and module applications：
Load Switch and Power Management: Low on-resistance reduces voltage drop and power dissipation; small package aids high-density power board design.
Battery Protection and Charge/Discharge Management: Fast switching ensures reliable turn-off during overcurrent/short circuit; low on-resistance reduces self-heating of the protection board.
Low-Voltage Motor Drive: Low PWM switching losses, smooth motor operation, significantly improved controller temperature rise.
Consumer Electronics Control Module: Logic level direct drive simplifies peripheral circuits, suitable for high-volume products like smart switches and USB power delivery.
DC-DC Converter: Suitable for synchronous rectification or reverse polarity protection; replacing Schottky diodes can improve heavy-load efficiency, facilitating module miniaturization.
Automotive Auxiliary Circuit: 60V voltage rating margin adapts to 24V automotive bus; wide operating temperature range enhances environmental adaptability and reliability.
Selection Summary: SI3459DV-T1-E3-VB achieves a balanced optimization between voltage rating, on-resistance, package size, and system cost. It is a cost-effective general-purpose choice for -60V P-channel switching applications, particularly suitable for portable and industrial control projects with strict requirements on space, power consumption, and heat dissipation.
* 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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