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Product Detailed Parameters
- Description：MOSFET 2N-CH 30V 8SOIC
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Bulk
- Technology：MOSFET (Metal Oxide)
- Configuration：2 N-Channel (Dual)
- FET Feature：Logic Level Gate
- Drain to Source Voltage (Vdss)：30V
- Current - Continuous Drain (Id) @ 25°C：-
- Rds On (Max) @ Id, Vgs：22mOhm @ 7.5A, 10V
- Vgs(th) (Max) @ Id：2.6V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：11nC @ 10V
- Input Capacitance (Ciss) (Max) @ Vds：448pF @ 15V
- Power - Max：2W
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The AO4842L is a dual N-channel enhancement mode field effect transistor manufactured by Alpha & Omega Semiconductor. It utilizes advanced trench technology to deliver low on-resistance and gate charge, making it suitable for buck converters and synchronous rectification. The device operates with a drain-source voltage of 30V and supports a continuous drain current of 7.5A at 10V gate drive. Key electrical parameters include an on-resistance below 22mΩ at VGS=10V and 35mΩ at VGS=4.5V. It features UIS testing and is housed in an SOIC-8 package.
Feature Summary
- Advanced trench technology provides excellent RDS(ON) and low gate charge
- Electrically identical to the standard AO4842 variant
- RoHS compliant and halogen-free construction
- Validated for Unclamped Inductive Switching (UIS)
Applications
- Buck converter switching applications
- Synchronous rectifier combinations
- Compact power switch implementations
Procurement Notes
Verify the specific ordering suffix against official manufacturer documentation to confirm compliance status. Ensure the component matches the required package type and thermal characteristics for your design. Cross-reference datasheet revision dates to validate parameter accuracy before finalizing procurement specifications.
Selection Notes
Evaluate the maximum junction temperature range and thermal resistance values against your system's cooling capabilities. Confirm that the gate threshold voltage aligns with your controller's output levels. Verify that the package dimensions fit within your PCB layout constraints and that the current ratings meet peak load requirements.
Part Context
This component belongs to the AO48xx series of dual N-channel MOSFETs from Alpha & Omega Semiconductor. These devices are designed for consumer market applications and utilize trench FET technology to optimize performance in space-constrained designs. The series focuses on providing efficient switching solutions for portable electronics and power management circuits.
Replacement Considerations
The AO4842 is electrically identical to the AO4842L. Verify pinout compatibility and package dimensions when substituting. Ensure the replacement part meets the same thermal and electrical specifications required by the original design.
