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Product Detailed Parameters
- Description：MOSFET N-CH 75V 21.5A/140A TO263
- Series：-
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR)
- FET Type：N-Channel
- Technology：MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss)：75 V
- Current - Continuous Drain (Id) @ 25°C：21.5A (Ta), 140A (Tc)
- Drive Voltage (Max Rds On, Min Rds On)：6V, 10V
- Rds On (Max) @ Id, Vgs：2.4mOhm @ 20A, 10V
- Vgs(th) (Max) @ Id：3.3V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：206 nC @ 10 V
- Vgs (Max)：±20V
- Input Capacitance (Ciss) (Max) @ Vds：10830 pF @ 37.5 V
- FET Feature：-
- Power Dissipation (Max)：2.1W (Ta), 500W (Tc)
- Operating Temperature：-55°C ~ 175°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Supplier Device Package：TO-263 (D2PAK)
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
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Overview
The AOB270AL is a 75V N-Channel MOSFET utilizing Trench technology. It features a maximum continuous drain current of 140A at TC=25°C and a maximum on-resistance of less than 2.6mΩ at VGS=10V. The device supports a gate-source voltage of ±20V, operates within a junction temperature range of -55°C to 175°C, and has a power dissipation rating of 215W at TC=25°C. It includes 100% UIS and Rg testing.
Feature Summary
- Optimized for high-frequency switching with minimized conduction and switching losses
- Capable of handling unclamped inductive switching events
- Designed for efficient performance through low on-resistance and capacitance combination
Applications
- Boost converters
- Synchronous rectifiers
- Consumer power supplies
- Telecom power supplies
- Industrial power supplies
- LED backlighting
Procurement Notes
Verify the specific package variant required, as the datasheet covers both TO-220 and TO-263 configurations under the same part number prefix. Confirm thermal management requirements align with the specified junction-to-case resistance values. Ensure application conditions do not exceed the absolute maximum ratings defined in the official Alpha & Omega Semiconductor documentation.
Selection Notes
Select this component when designing circuits requiring high current capacity up to 140A and low voltage drop characteristics. Consider the thermal environment carefully, as power dissipation varies significantly between case temperatures and ambient conditions. Verify that the operating frequency benefits from the optimized switching parameters provided by the Trench MOSFET structure.
Part Context
The AOB270AL belongs to the AOT/AOB series of 75V N-Channel MOSFETs manufactured by Alpha & Omega Semiconductor. These devices are engineered for general-purpose power switching applications where efficiency and thermal performance are critical. The product line emphasizes robust reliability through comprehensive testing protocols including UIS validation.
Replacement Considerations
Consult official manufacturer substitution guides for verified alternatives. Cross-reference pinouts and electrical specifications carefully before replacing components in existing designs.
