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Product Detailed Parameters
- Description：MOSFET P-CH 30V 4.3A SOT23-3
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR)
- FET Type：P-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：30 V
- Current - Continuous Drain (Id) @ 25°C：4.3A (Ta)
- Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
- Rds On (Max) @ Id, Vgs：48mOhm @ 4.3A, 10V
- Vgs(th) (Max) @ Id：2.4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：20 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：520 pF @ 15 V
- FET Feature：-
- Power Dissipation (Max)：1.4W (Ta)
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Supplier Device Package：SOT-23-3
- Package / Case：3-SMD, SOT-23-3 Variant
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Overview
The AO3457 is a P-Channel Enhancement Mode Field Effect Transistor manufactured by Alpha & Omega Semiconductor. It utilizes advanced trench technology to achieve low on-resistance and fast switching speeds, making it suitable for load switches and PWM applications. The device is available in an 8-SOIC package and is RoHS compliant. Key electrical parameters include a drain-source voltage of -30V, a continuous drain current of -17A, and a maximum on-resistance of 7mΩ at VGS = -10V.
Feature Summary
- Advanced trench technology for enhanced performance
- Low gate charge for efficient switching
- RoHS compliant construction
Applications
- Load switch applications
- PWM control circuits
- Notebook CPU core power conversion
Procurement Notes
Verify the specific datasheet revision and ordering suffix when sourcing. Confirm that the component meets the required environmental standards such as RoHS if specified. Ensure the package type matches the design footprint requirements. Cross-reference the manufacturer's official documentation for any updates regarding lead-free specifications or material declarations before finalizing procurement.
Selection Notes
Select this component based on its -30V rating and -17A current capacity. Consider the thermal performance and package size for the intended application. Verify compatibility with the driving circuitry regarding gate threshold voltages. Ensure the selected part number aligns with the required packaging and compliance standards for the production environment.
Part Context
This component belongs to the family of P-Channel MOSFETs from Alpha & Omega Semiconductor. These devices are designed for general-purpose switching applications requiring high efficiency and reliability. The AO3457 shares similar technological foundations with other trench-based MOSFETs in the manufacturer's portfolio, focusing on minimizing conduction losses.
Replacement Considerations
Check for electrically identical alternatives within the same product line. Verify pinout compatibility and package dimensions for direct substitution. Ensure that any replacement part meets or exceeds the original voltage and current ratings.
