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SI3415U-TP-VB Product details
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Imagine this: you're designing a compact battery-powered device, PCB space is tight, yet you need stable switching for a negative voltage rail. Ordinary P-channel MOSFETs either have excessive voltage drop or complex drive logic. VBsemi SI3415U-TP-VB is designed for exactly this—it packs -20V withstand voltage, -5A current capacity, and an on-resistance as low as 34mΩ into the tiny SOT23-3 package, making low-voltage negative polarity power design effortless.
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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 | -20V | -0.6V | -5A | 46(mΩ) | 34(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-P | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-P | -20V | -0.6V | -5A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-P | -20V | -0.6V | -5A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOT23-3 | Single-P |
Product Parameters (Actual Data)
Voltage Rating -20V, meets negative terminal switching requirements for low-voltage systems
Gate Drive Range ±12V, compatible with common low-voltage logic levels
Threshold Voltage -0.6V, reliable turn-on at low voltage
On-Resistance 34mΩ (-4.5V Drive) / 46mΩ (-2.5V Drive), lower loss and reduced heat generation
Maximum Current -5A, substantial negative current capability in a small package
Trench Technology, combining excellent switching performance and conduction characteristics
Voltage Rating -20V, meets negative terminal switching requirements for low-voltage systems
Gate Drive Range ±12V, compatible with common low-voltage logic levels
Threshold Voltage -0.6V, reliable turn-on at low voltage
On-Resistance 34mΩ (-4.5V Drive) / 46mΩ (-2.5V Drive), lower loss and reduced heat generation
Maximum Current -5A, substantial negative current capability in a small package
Trench Technology, combining excellent switching performance and conduction characteristics
Domain and module applications：
Real-World Scenarios
Lithium battery protection board – Used for negative terminal loop on/off control, low on-resistance effectively reduces discharge temperature rise, extends cell life.
Portable device power management – In load switch or power path management circuits, achieves low-loss negative voltage switching.
DC-DC converter – As a synchronous rectifier or load switch, improves low-side conversion efficiency, reduces board footprint.
LED drive module – Used for negative polarity constant current control, with low threshold voltage enabling simple and stable switching action.
Handheld instruments – Leveraging SOT23-3 small package and low internal resistance, saves space while ensuring reliable on/off.
Negative voltage rail protection – Quickly disconnects during reverse connection or overcurrent, providing safe isolation for downstream circuits. In a nutshell: SI3415U-TP-VB is not just an ordinary P-channel MOSFET; it is the ideal choice for low-voltage negative polarity power designs balancing space and efficiency.
* 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
