AAT4621IWO-T1

Overview

The AAT4621IWO-T1 is a power management IC designed for PC Card applications, featuring an integrated current limit interface and capacitor charger. It operates within a supply voltage range of 3V to 5.5V and supports output currents up to 2A. The device includes adjustable current limiting and thermal protection mechanisms. It is housed in a 14-pin TDFN package measuring 3mm by 3mm with exposed pad.

Feature Summary

• Integrates current limit interface and supercapacitor charging circuitry
• Provides adjustable current limiting with thermal shutdown protection
• Supports high-output current capability for PC Card power distribution

Applications

• PC Card power distribution systems
• Supercapacitor charging circuits
• Portable electronic devices requiring regulated power switching

Procurement Notes

Verify component authenticity through authorized Skyworks distributors or official channels. Confirm package marking and datasheet revision against the specific lot code. Check for End-of-Life status notifications as discontinuance may affect long-term availability. Ensure storage conditions comply with moisture sensitivity levels specified in the data sheet prior to reflow soldering.

Selection Notes

Select this component when designing PC Card interfaces requiring integrated current limiting and supercapacitor support. Evaluate thermal performance based on expected load currents and ambient temperature conditions. Consider the 14-TDFN footprint constraints during PCB layout. Verify input voltage compatibility with the system's 3V to 5.5V operating range before integration.

Part Context

This part belongs to the AAT4621 series of power switch ICs from Skyworks Solutions. It is specifically engineered for portable computing applications where space efficiency and power management are critical. The device consolidates multiple power control functions into a single compact package, reducing overall system complexity compared to discrete solutions.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.