MAX20355AEWO+

Power Management - Specialized Overview

The MAX20355AEWO+ is a specialized Power Management IC (PMIC) designed for power line communication (PLC) and high-efficiency charging applications. It integrates a ModelGauge™ m5 EZ fuel gauge with a buck-boost converter. The device supports a system throughput of 100kbps and a bit rate of 166.7kbps, featuring automatic earbud insertion/removal detection. It includes a 4Mbaud half-duplex data-only UART mode and PLC-controllable GPIO, reset, and shutdown functions.

Power Management - Specialized Feature Summary

• Integrates ModelGauge m5 EZ fuel gauge technology for accurate battery monitoring
• Supports power line communication with configurable GPIO and control interfaces
• Includes automatic detection for earbud insertion and removal events

Power Management - Specialized Applications

• True wireless stereo (TWS) earbuds
• Wearable audio devices
• Bluetooth low energy accessories

Power Management - Specialized Procurement Notes

Verify the specific suffix 'AEWO+' against official Analog Devices documentation to confirm package type and temperature range. Ensure compatibility with existing PCB footprints for the 42-WLP package. Confirm availability status through authorized distributors as supply may be limited or subject to allocation.

Power Management - Specialized Selection Notes

Select this component when integrated PLC functionality and precise fuel gauging are required in space-constrained wearable designs. The integration of the buck-boost converter and fuel gauge reduces bill-of-materials count. Evaluate thermal performance within the WLP package for high-current charging scenarios.

Power Management - Specialized Part Context

This part belongs to the MAX20355 series of PMICs from Analog Devices/Maxim Integrated. It is specifically engineered for audio-centric wearables requiring robust power management and communication capabilities over the charging contacts. The series emphasizes miniaturization and efficiency for portable consumer electronics.

Power Management - Specialized Replacement Considerations

Check for MAX20355EWO+ variants or updated revisions within the same family. Verify pinout and functional equivalence before substitution. Consult Analog Devices for current lifecycle status and recommended alternative components if discontinuation is confirmed.