MAX20303BEWN+

Overview

The MAX20303BEWN+ is a programmable power management integrated circuit designed for ultra-low-power wearable applications. It integrates multiple regulators including two micro-IQ buck converters, two micro-IQ LDOs/load switches, and a micro-IQ boost converter. The device features a Li-ion battery charger with adjustable current limits, an intelligent power selector, and tactile drivers for ERM/LRA actuators. It operates within a wide input voltage range and includes protection features such as thermal regulation and hot-swap capability.

Feature Summary

• Integrates multiple low-quiescent-current regulators to optimize system efficiency and extend battery life in always-on wearable devices.
• Includes a flexible lithium-ion battery charger with programmable current and voltage profiles compliant with JEITA standards.
• Features an intelligent power selector that manages power sources with high tolerance for input transients.
• Provides tactile driving capabilities with automatic resonance tracking for haptic feedback applications.

Applications

• Wearable health monitoring devices requiring precise power management
• Ultra-low-power IoT sensors and edge computing modules
• Smartwatches and fitness trackers with haptic feedback systems

Procurement Notes

Verify the specific suffix BEWN+ against the manufacturer's official datasheet to confirm package type and temperature grade. Confirm availability status as distribution channels may list limited stock or end-of-life statuses. Ensure compatibility with existing PCB footprints and thermal requirements before procurement.

Selection Notes

Select this component when designing wearable electronics that demand minimal static current consumption across multiple voltage rails. The integration of charging, power sequencing, and tactile driving reduces bill of materials count. Evaluate the required output currents and voltage ranges against the internal regulator specifications to ensure adequate headroom for peak loads.

Part Context

The MAX20303 belongs to Maxim Integrated's portfolio of power management solutions optimized for mobile and wearable form factors. It replaces discrete power architectures by consolidating buck, boost, LDO, and charging functions into a single small-footprint module. This integration supports the miniaturization trends in modern consumer electronics and medical wearables.

Replacement Considerations

Consult Analog Devices official documentation for direct pin-to-pin replacements or functional equivalents. Verify that alternative components support the same micro-IQ specifications and tactile driver interfaces if haptic functionality is required.

FAQ

What is the typical quiescent current of the micro-IQ regulators?

The micro-IQ buck and LDO regulators typically consume 1µA of quiescent current, designed to maximize battery life in always-on applications.

Does the MAX20303 support automatic resonance tracking?

Yes, the integrated tactile driver supports automatic resonance tracking specifically for Linear Resonant Actuators (LRA) to maintain efficient haptic performance.