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STT3457P-VB Product details
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STT3457P-VB MOSFET Product Introduction
The STT3457P-VB is a unipolar P-channel MOSFET in a SOT23-6 package, suitable for miniaturized power electronic devices that require low on-resistance and good switching performance. This model has a maximum drain-source voltage (VDS) of -30V and can handle currents up to -4.8A. Manufactured using Trench technology, the STT3457P-VB provides a low RDS(ON) value of 54mΩ at VGS=4.5V and 49mΩ at VGS=10V, ensuring low power loss during operation.
The threshold voltage (Vth) of this MOSFET is -1.7V, suitable for 5V or 3.3V logic drive, and is widely used in low-voltage power switches, load switches, load protection circuits, and various small power modules. Its compact package design makes it ideal for space-constrained applications such as portable devices, battery-powered systems, and other power management modules that require high-efficiency, small-footprint components.
The STT3457P-VB is a unipolar P-channel MOSFET in a SOT23-6 package, suitable for miniaturized power electronic devices that require low on-resistance and good switching performance. This model has a maximum drain-source voltage (VDS) of -30V and can handle currents up to -4.8A. Manufactured using Trench technology, the STT3457P-VB provides a low RDS(ON) value of 54mΩ at VGS=4.5V and 49mΩ at VGS=10V, ensuring low power loss during operation.
The threshold voltage (Vth) of this MOSFET is -1.7V, suitable for 5V or 3.3V logic drive, and is widely used in low-voltage power switches, load switches, load protection circuits, and various small power modules. Its compact package design makes it ideal for space-constrained applications such as portable devices, battery-powered systems, and other power management modules that require high-efficiency, small-footprint components.
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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 | -30V | -1.7V | -4.8A | 49mΩ | 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 | -30V | -1.7V | -4.8A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P | -30V | -1.7V | -4.8A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOT23-6 | Single-P |
STT3457P-VB MOSFET Detailed parameter description
- **Model**: STT3457P-VB
- **Package**: SOT23-6
- **Configuration**: Single P-Channel MOSFET
- **Drain-source voltage (VDS)**: -30V
- **Gate-source voltage (VGS)**: ±20V
- **Threshold voltage (Vth)**: -1.7V
- **On-resistance (RDS(ON))**:
- 54mΩ @ VGS=4.5V
- 49mΩ @ VGS=10V
- **Maximum drain current (ID)**: -4.8A
- **Technology**: Trench (Trench technology)
- **Operating temperature range**: -55°C to 150°C (typical)
- **Model**: STT3457P-VB
- **Package**: SOT23-6
- **Configuration**: Single P-Channel MOSFET
- **Drain-source voltage (VDS)**: -30V
- **Gate-source voltage (VGS)**: ±20V
- **Threshold voltage (Vth)**: -1.7V
- **On-resistance (RDS(ON))**:
- 54mΩ @ VGS=4.5V
- 49mΩ @ VGS=10V
- **Maximum drain current (ID)**: -4.8A
- **Technology**: Trench (Trench technology)
- **Operating temperature range**: -55°C to 150°C (typical)
Domain and module applications：
Application fields and modules of STT3457P-VB MOSFET
#### 1. **Load switch and power management**
STT3457P-VB is suitable for load switch and power management modules, especially in portable devices and low-power applications. Its small package and low on-resistance make it very suitable for use as a switching element in the power path, especially in battery-powered systems, which can effectively reduce power loss.
**Example**: In the battery management system of smartphones or wearable devices, STT3457P-VB can be used as a power switch to start and stop battery power supply, reduce standby power consumption and improve battery efficiency.
#### 2. **Battery protection**
In the battery protection circuit, STT3457P-VB can be used as a negative switch to provide protection and control functions for the battery. It can effectively cut off the current between the battery and the load, prevent overcurrent and short circuit conditions, and protect the battery from damage.
**Example**: In the battery management system of portable battery-powered devices (such as power tools or wireless headphones), the STT3457P-VB can be used in the battery's overcurrent protection circuit to ensure that the battery operates within a safe range and prolong the battery life.
#### 3. **Small power module**
Due to its compact package (SOT23-6), this MOSFET is suitable for switch control in small power modules. For example, it can be used as a switching element in an efficient small DC-DC converter to provide power conversion and voltage regulation functions.
**Example**: In a small DC-DC converter for handheld devices, the STT3457P-VB can be used as a switching element to achieve efficient voltage conversion and reduce energy waste.
#### 4. **Low-voltage load drive**
The STT3457P-VB is suitable for driving low-voltage loads such as LED drivers, display controls, and audio amplifiers. Due to its low on-resistance, it is able to provide a stable current supply to these loads while maintaining low power consumption.
**Example**: In LED light strip driver modules, STT3457P-VB can be used to regulate current to ensure stable operation of LED lighting systems, especially under low voltage driving conditions, which can effectively improve the efficiency of the power supply.
#### 5. **Voltage Regulation and Regulator**
STT3457P-VB is also commonly used in various voltage regulation and regulator circuits as a switching element of the regulator to ensure that the voltage is output stably within the appropriate range.
**Example**: In low-power regulated power supply modules, STT3457P-VB can be used as a P-channel switching element to provide precise voltage regulation, suitable for power management systems of portable electronic products.
### Summary
STT3457P-VB MOSFET, with its low on-resistance, high current carrying capacity and compact SOT23-6 package, is widely used in low-power and high-efficiency applications such as battery management, power switching, LED driving, battery protection and small power modules. Its design features make it an ideal choice for many portable and miniaturized electronic devices.
#### 1. **Load switch and power management**
STT3457P-VB is suitable for load switch and power management modules, especially in portable devices and low-power applications. Its small package and low on-resistance make it very suitable for use as a switching element in the power path, especially in battery-powered systems, which can effectively reduce power loss.
**Example**: In the battery management system of smartphones or wearable devices, STT3457P-VB can be used as a power switch to start and stop battery power supply, reduce standby power consumption and improve battery efficiency.
#### 2. **Battery protection**
In the battery protection circuit, STT3457P-VB can be used as a negative switch to provide protection and control functions for the battery. It can effectively cut off the current between the battery and the load, prevent overcurrent and short circuit conditions, and protect the battery from damage.
**Example**: In the battery management system of portable battery-powered devices (such as power tools or wireless headphones), the STT3457P-VB can be used in the battery's overcurrent protection circuit to ensure that the battery operates within a safe range and prolong the battery life.
#### 3. **Small power module**
Due to its compact package (SOT23-6), this MOSFET is suitable for switch control in small power modules. For example, it can be used as a switching element in an efficient small DC-DC converter to provide power conversion and voltage regulation functions.
**Example**: In a small DC-DC converter for handheld devices, the STT3457P-VB can be used as a switching element to achieve efficient voltage conversion and reduce energy waste.
#### 4. **Low-voltage load drive**
The STT3457P-VB is suitable for driving low-voltage loads such as LED drivers, display controls, and audio amplifiers. Due to its low on-resistance, it is able to provide a stable current supply to these loads while maintaining low power consumption.
**Example**: In LED light strip driver modules, STT3457P-VB can be used to regulate current to ensure stable operation of LED lighting systems, especially under low voltage driving conditions, which can effectively improve the efficiency of the power supply.
#### 5. **Voltage Regulation and Regulator**
STT3457P-VB is also commonly used in various voltage regulation and regulator circuits as a switching element of the regulator to ensure that the voltage is output stably within the appropriate range.
**Example**: In low-power regulated power supply modules, STT3457P-VB can be used as a P-channel switching element to provide precise voltage regulation, suitable for power management systems of portable electronic products.
### Summary
STT3457P-VB MOSFET, with its low on-resistance, high current carrying capacity and compact SOT23-6 package, is widely used in low-power and high-efficiency applications such as battery management, power switching, LED driving, battery protection and small power modules. Its design features make it an ideal choice for many portable and miniaturized electronic 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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