AAT4280AIJS-3-T1

Overview

The AAT4280AIJS-3-T1 is a high-side P-channel load switch from Skyworks Solutions, designed for power distribution applications. It operates within an input voltage range of 1.5V to 5.5V and supports a maximum continuous output current of 2.3A. The device features a typical on-resistance of 80 milliohms and a maximum on-resistance of 120 milliohms. Key functional parameters include a maximum slew rate controlled turn-on time of 150 microseconds and a power dissipation rating of 714 mW. It is housed in an 8-pin SC70JW package and functions over an ambient temperature range of -40°C to +85°C.

Feature Summary

• Integrates slew rate control to manage inrush currents during system startup
• Provides load release functionality for controlled power-down sequences
• Utilizes a high-side P-channel MOSFET architecture for efficient power switching

Applications

• Power distribution in portable electronic devices
• Load switching for peripheral circuits in consumer electronics
• Battery-powered systems requiring controlled power sequencing

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to end-of-life status. Confirm RoHS compliance and specific lot traceability requirements against project specifications. Review the Product Change Notification (PCN) dated January 12, 2015, for any manufacturing site or material changes that may impact qualification. Ensure supply chain stability strategies are in place given the discontinued product lifecycle.

Selection Notes

Evaluate the 80 milliohm typical on-resistance against thermal constraints for the target load current. Consider the 150 microsecond maximum turn-on time for compatibility with sensitive downstream components. Verify that the 1.5V to 5.5V operating voltage range aligns with the system's available power rails. Assess the SC70JW-8 package dimensions for PCB layout compatibility and thermal management needs.

Part Context

This component belongs to Skyworks' Application Specific Power MOSFET (ASPM) family, which focuses on integrated power management solutions. The AAT4280 series is engineered for space-constrained designs requiring precise power control. As a single-channel high-side switch, it serves as a fundamental building block for power distribution networks in compact mobile and industrial applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Skyworks Solutions technical support for qualified alternatives or cross-reference options based on specific electrical and mechanical requirements.