AAT4290IJS-1-T1

Overview

The AAT4290IJS-1-T1 is a power distribution IC manufactured by Skyworks Solutions Inc. It functions as a single-channel P-channel MOSFET load switch with serial control capabilities. The device supports an input voltage range up to 5.5V and provides a typical on-resistance of 1.1 Ohms. It features a non-inverting input type and includes slew rate controlled switching to minimize inrush current. Fault protection mechanisms include under-voltage lockout (UVLO). The component operates within a temperature range of -40°C to +85°C and is housed in an 8-pin SC70JW package.

Feature Summary

• Integrates serial control interface for precise management of power delivery states
• Utilizes slew rate control to manage switching transitions and reduce electromagnetic interference
• Incorporates under-voltage lockout to ensure stable operation during low supply conditions

Applications

• Power sequencing in portable electronic devices
• Load switching in battery-powered systems
• Power distribution in embedded industrial controllers

Procurement Notes

Verify the specific suffix and package variant against official Skyworks documentation before integration, as minor revisions may exist. Confirm end-of-life status or availability through authorized distributors, as discontinuation notices may affect long-term supply chain stability. Ensure compatibility with existing serial control protocols used in the target system design.

Selection Notes

Select this component when a compact, serially controllable load switch is required for low-current applications. The SC70JW-8 package offers space efficiency for dense PCB layouts. Consider the 1.1 Ohm on-resistance and 5.5V maximum rating to ensure adequate performance margins for the specific load requirements and operating voltage environment.

Part Context

This part belongs to the AAT4290 series of power switches from Skyworks Solutions. It is designed for applications requiring controlled power gating with minimal footprint. The series typically targets mobile and consumer electronics where power management efficiency and size are critical constraints.

Replacement Considerations

Check for direct pin-to-pin replacements within the same Skyworks portfolio that may offer updated manufacturing runs if this specific revision is discontinued. Verify electrical parameter equivalence for any third-party alternatives.