AAT3681AIJS-4.2-2-T1

Overview

The AAT3681AIJS-4.2-2-T1 is a single-cell lithium-ion/polymer battery charger IC from Skyworks Solutions. It supports USB port and AC adapter inputs with an operating supply voltage range of 4 V to 7.5 V. The device provides a regulated output voltage of 4.2 V for charging applications. It operates within a temperature range of -40 C to +85 C, drawing a typical quiescent current of 500 uA. The component is housed in an SC70JW-8 surface-mount package.

Feature Summary

• Highly integrated design for single-cell lithium-ion and polymer batteries
• Supports multiple input sources including USB ports and AC adapters
• Optimized for high-efficiency power management in portable devices

Applications

• Portable electronic devices requiring single-cell battery charging
• USB-powered consumer electronics
• AC adapter powered mobile equipment

Procurement Notes

Verify the exact suffix configuration as datasheets may list AAT3681AIJS-4.2-T1. Confirm availability status as distribution channels indicate limited stock or end-of-life conditions. Ensure the specific variant matches the required thermal and electrical specifications for the target application before procurement.

Selection Notes

Select this component for applications requiring a compact solution for single-cell Li-ion or Li-Po batteries. Consider the SC70JW-8 package size constraints and the 4.2 V output requirement. Verify compatibility with the system's USB or AC input voltage ranges within the specified 4 V to 7.5 V window.

Part Context

This part belongs to the AAT3681 series of battery chargers by Skyworks Solutions. It is categorized under PMIC and Battery Management products. The series focuses on providing efficient charging solutions for portable electronics using minimal external components.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for direct replacements.