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Product Detailed Parameters
- Description：MOSFET N-CH 30V 18A 8SOIC
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR)
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：30 V
- Current - Continuous Drain (Id) @ 25°C：18A (Ta)
- Drive Voltage (Max Rds On, Min Rds On)：4.5V, 10V
- Rds On (Max) @ Id, Vgs：5.5mOhm @ 18A, 10V
- Vgs(th) (Max) @ Id：2.5V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：124 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：7270 pF @ 15 V
- FET Feature：-
- Power Dissipation (Max)：3W (Ta)
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Package / Case：8-SOIC (0.154", 3.90mm Width)
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Overview
The AO4430L 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. The device is designed for high-efficiency power management applications, offering robust performance in compact surface-mount packages. Key electrical characteristics include a drain-source voltage rating of -30V and a continuous drain current capability suitable for various load switching requirements.
Feature Summary
- P-channel enhancement mode construction
- Advanced trench MOSFET technology
- Low gate charge for efficient switching
- RoHS compliant lead-free finish
Applications
- DC-DC converter synchronous rectification
- Load switch applications
- Power management circuits
- Battery protection modules
Procurement Notes
Verify the specific suffix code on the ordering information sheet to confirm package type and tape/reel specifications. Ensure the component matches the required thermal resistance and power dissipation ratings for the intended PCB layout. Cross-reference the datasheet revision date to confirm the accuracy of electrical parameters before finalizing procurement.
Selection Notes
Select this component based on its negative threshold voltage characteristics and maximum drain-source voltage limits. Evaluate the thermal impedance data against the expected operating temperature range. Confirm that the gate drive voltage levels are compatible with the specified logic-level input requirements for optimal conduction.
Part Context
This part belongs to the AO4400 series of P-channel MOSFETs from Alpha & Omega Semiconductor. The series is engineered for general-purpose power switching applications requiring high efficiency and reliability. The AO4430L specifically targets markets needing compact solutions with improved thermal performance compared to older generation devices.
Replacement Considerations
Direct replacements must match the -30V Vds rating and comparable Rds(on) values. Verify pinout compatibility for SOT-23 or similar packages. Check if alternative manufacturers offer equivalent trench technology with identical thermal and electrical profiles.
