MAX20303BEWN+T

Overview

The MAX20303BEWN+T is a highly integrated, programmable power management IC designed for ultra-low-power wearable applications. It features two micro-IQ buck regulators, two LDOs/load switches, a boost converter, and a Buck-Boost regulator. The device includes a Li-ion battery charger with thermal regulation, a fuel gauge, and ERM/LRA tactile drivers. Key specifications include a 28V/-5.5V tolerant input, factory shelf mode, and I2C control interface.

Feature Summary

• Integrates multiple low-quiescent-current regulators to extend battery life in always-on applications.
• Provides complete battery management including programmable charging, fuel gauging, and protection.
• Includes dedicated drivers for ERM and LRA haptic feedback with automatic resonance tracking.
• Supports flexible power sequencing and smart power selection for optimized system efficiency.

Applications

• Smartwatches and fitness trackers
• Health monitoring wearables
• Low-power IoT sensor nodes
• Compact portable electronic devices

Procurement Notes

Verify the suffix 'BEWN' against official Analog Devices documentation to confirm package type and temperature range. Ensure compatibility with existing PCB footprints and I2C addressing schemes. Check for obsolescence status as Maxim Integrated products may have lifecycle changes. Confirm supply chain authenticity through authorized distributors only.

Selection Notes

Select this component when designing for space-constrained wearable devices requiring high integration. It replaces discrete PMIC, charger, and haptic driver solutions. Consider the 1µA typical quiescent current for standby applications. Evaluate the need for internal vs. external reference voltage sources based on noise sensitivity requirements.

Part Context

The MAX20303 belongs to Maxim's family of programmable power management solutions tailored for wearables. It consolidates functions typically handled by multiple separate chips into a single WLP package. This integration reduces bill of materials cost and PCB area while improving overall system reliability and power efficiency.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data. Consult Analog Devices official cross-reference tools for compatible alternatives if this specific variant is unavailable.