MAX20303AEWN+T

Overview

The MAX20303AEWN+T is a highly integrated, programmable power management IC designed for ultra-low-power wearable applications. It features two Micro-IQ buck regulators with typical quiescent currents under 1μA, providing outputs from 0.8V to 3.95V. The device includes two Micro-IQ LDOs/load switches and a Micro-IQ boost converter. Integrated battery management supports charging currents from 5mA to 500mA with smart power path selection. Additional modules include an ERM/LRA tactile driver, three-channel LED current sink, ADC, and power sequencing controllers.

Feature Summary

• Ultra-low static current regulators extending battery life in always-on applications
• Integrated battery charger with thermal regulation and wide input tolerance
• On-chip voltage monitoring multiplexer and analog-to-digital converter
• Programmable power sequencing and factory shelf mode support

Applications

• Wearable health and fitness devices
• IoT sensor terminals
• Smartwatches and wrist-worn monitors
• Low-power MCU development boards

Procurement Notes

Verify the AEWN suffix indicates specific package or temperature variants against official datasheets. Confirm availability status as distribution channels may list limited stock. Ensure I2C compatibility requirements are met for system integration. Check RoHS compliance documentation for environmental standards.

Selection Notes

Select this component when minimizing PCB area and maximizing battery endurance are critical. The high integration reduces external component count compared to discrete solutions. Evaluate the specific output voltage ranges of the buck and LDO stages against system rail requirements before finalizing the design.

Part Context

This part belongs to the Maxim Integrated family of PMICs optimized for portable electronics. It replaces multiple discrete power components with a single chip solution. The series is characterized by its focus on reducing quiescent current to preserve energy in battery-operated consumer devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.