MAX20303JEWN+T

Overview

The MAX20303JEWN+T is a highly integrated, programmable power management IC designed for ultra-low-power wearable applications. It features two micro-IQ buck regulators (Buck1: 0.8V–2.375V; Buck2: 0.8V–3.95V), two LDOs/Load Switches, a micro-IQ buck-boost regulator, and a boost converter. The device includes a Li-ion battery charger with 5mA–500mA current range, fuel gauge, ERM/LRA driver, and I2C interface. Input voltage ranges from 2.7V to 28V. Operating temperature is -40°C to +85°C. Package is WLP-56.

Feature Summary

• Highly integrated solution combining power regulation, battery charging, and peripheral drivers in a single chip.
• Ultra-low quiescent current across all regulators to maximize battery life in always-on wearable devices.
• Comprehensive battery management including programmable charging, fuel gauge, and thermal monitoring.
• Integrated haptic driver supporting ERM and LRA actuators with automatic resonance tracking.

Applications

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

Procurement Notes

Verify the exact suffix JEWN against the manufacturer's official datasheet to confirm package type and temperature grade. Ensure compatibility with I2C control requirements for your specific firmware implementation. Check availability status as supply constraints may affect lead times. Confirm RoHS compliance if required by your manufacturing standards.

Selection Notes

Select this component when space constraints and battery longevity are critical priorities. It replaces multiple discrete PMICs, chargers, and drivers. Ideal for designs requiring precise voltage rails for MCUs and sensors alongside efficient battery charging. Consider the WLP-56 footprint for PCB area optimization.

Part Context

Part of the Maxim Integrated wearable PMIC family, specifically optimized for small form-factor electronics. It consolidates functions typically handled by separate components, reducing system complexity. Designed to work with low-power ARM Cortex-M processors common in modern wearable AI and health devices.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. Evaluate pin-compatible alternatives only if officially listed by Analog Devices as drop-in replacements. Verify functional equivalence for all integrated modules before substitution.