MAX14690IEWX+T

Overview

The MAX14690IEWX+T is a wearable charge management solution designed for low-power applications. It integrates a linear battery charger with smart power selection, two ultra-low power buck regulators, and three ultra-low power LDOs. The device supports lithium-ion batteries with an operating supply voltage range of 2.7 V to 5.5 V. Output voltages are configurable from 800 mV to 3.6 V, delivering up to 200 mA. It operates within a temperature range of -40°C to +85°C in a 36-WLP (2.69x2.44) package.

Feature Summary

• Integrates a linear battery charger with smart power selector for seamless source switching
• Includes two ultra-low power buck regulators with typical quiescent current of 900 nA
• Features three ultra-low power LDO linear regulators with typical quiescent current of 600 nA

Applications

• Low-power wearable electronic devices
• Small lithium-ion battery systems
• Portable health monitoring equipment

Procurement Notes

Verify the specific suffix 'IEWX' against the official Analog Devices datasheet to confirm pinout and thermal characteristics. Ensure the component meets RoHS compliance requirements for your assembly process. Confirm availability status as distribution may vary by region. Validate that the 36-WLP package dimensions match your PCB footprint constraints before finalizing procurement.

Selection Notes

Select this component when designing compact wearable systems requiring integrated charging and multi-rail power management. It is suitable for applications needing ultra-low standby currents to extend battery life. Consider the 200 mA output capability and input voltage range of 2.7 V to 5.5 V. Ensure the design accommodates the small form factor of the WLP-36 package for space-constrained layouts.

Part Context

The MAX14690 series belongs to Maxim Integrated's portfolio of specialized power management ICs for wearables. This family focuses on combining battery charging with efficient DC-DC conversion in minimal footprints. The MAX14690IEWX+T represents a specific variant within this line, optimized for integration into small portable devices where power efficiency and size are critical design parameters.

Replacement Considerations

Direct substitutes include other variants within the MAX14690 family such as MAX14690HEWX+T or MAX14690NEWX+T, provided pin compatibility and electrical specifications align with the system requirements. Verify package integrity and thermal performance when swapping between different suffixes.