MAX20303GEWN+T

Overview

The MAX20303GEWN+T is a highly integrated power management IC designed for wearable devices. It features two micro-IQ buck regulators, two micro-IQ LDOs/load switches, and a micro-IQ boost converter. The device includes a programmable Li-ion battery charger with input current limiting and thermal regulation. Integrated peripherals include an ERM/LRA haptic driver, three-channel LED drivers, and a fuel gauge. Key electrical parameters include a VIN range of 2.7V to 28V, Buck1 output of 0.8V to 2.375V, and Buck2 output of 0.8V to 3.95V.

Feature Summary

• Ultra-low quiescent current across all power stages to extend battery life in always-on applications
• Integrated battery charging with smart power path selection and thermal regulation
• Built-in fuel gauge for accurate state-of-charge monitoring
• On-chip haptic motor driver with automatic resonance tracking

Applications

• Smartwatches and fitness trackers
• Wearable health monitors
• Low-power IoT sensor nodes
• Portable medical devices

Procurement Notes

Verify the specific suffix GEWN against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the intended PCB footprint and soldering profile. Cross-reference the component marking code with the latest production data sheet to avoid counterfeit parts. Confirm RoHS compliance status through official documentation.

Selection Notes

Select this component when system design requires high integration to minimize PCB area. It is suitable for applications needing multiple regulated rails from a single-cell lithium battery. Consider the low static current requirements for long standby times. Evaluate the need for integrated haptic feedback and fuel gauge functionality before choosing over discrete solutions.

Part Context

This part belongs to the Maxim Integrated line of power management solutions, now under Analog Devices. It addresses the trend toward miniaturization in wearable electronics by combining PMIC, charger, and fuel gauge functions into a single WLP package. It complements other Maxim sensors and MCUs in complete wearable reference designs.

Replacement Considerations

Check for direct pin-to-pin replacements within the same product family. Verify if older revisions or alternative packaging options are available. Consult the manufacturer's obsolescence notices for any recommended upgrades or lifecycle changes.