AAT4285IJS-3-T1

Overview

The AAT4285IJS-3-T1 is a single-channel P-channel power switch IC manufactured by Skyworks Solutions Inc. It operates with a load voltage range of 3V to 13.2V and supports a maximum output current of 1.7A. The device features a typical on-resistance of 240 milliohms and utilizes an 8-SC70JW surface-mount package. It includes integrated fault protection mechanisms such as under-voltage lockout (UVLO) and controlled slew rate for load release. The component functions with a non-inverted input type and is rated for an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates P-channel MOSFET technology for high-side power distribution applications
• Features controlled slew rate capability to manage inrush current during load engagement
• Includes built-in under-voltage lockout (UVLO) for reliable fault protection
• Utilizes compact 8-lead SC70JW surface-mount packaging for space-constrained designs

Applications

• Portable electronic devices requiring efficient power management
• Battery-powered systems needing controlled power sequencing
• General-purpose load switching in consumer electronics
• Embedded systems utilizing high-side power distribution

Procurement Notes

Verify the specific suffix and package variant when sourcing replacements, as the original part is discontinued. Confirm that substitute components match the 1.7A current rating and 13.2V maximum load voltage specifications. Ensure the replacement maintains the same 8-SC70JW footprint and pin configuration to fit existing board layouts without modification. Check for equivalent thermal performance and UVLO thresholds to guarantee system reliability.

Selection Notes

Select this component for applications requiring a compact, high-side power switch with moderate current capabilities. The low on-resistance contributes to reduced power dissipation compared to higher resistance alternatives. Consider the controlled slew rate feature if minimizing electromagnetic interference or inrush stress on downstream components is critical. Verify that the input logic levels are compatible with the controlling microcontroller or processor within the target design environment.

Part Context

This device belongs to the Skyworks AAT4285 series of power switches, designed for portable electronics. It serves as a discrete solution for managing power rails in battery-operated devices. The series emphasizes small form factors and integrated protection features to simplify circuit design. It complements other power management solutions by providing efficient load switching without complex control interfaces.

Replacement Considerations

Public confirmed substitute part numbers: None identified.