MAX14690DEWX+T

Overview

The MAX14690DEWX+T is a battery management PMIC designed for small lithium-ion systems. It integrates ultra-low IQ voltage regulators and a battery charger. The device operates on a supply voltage of 2.7V to 5.5V. It supports a single-cell lithium-ion battery with a charging saturation voltage of 4.2V. The component functions within an operating temperature range of -40°C to +85°C. This integrated solution provides charge management capabilities in a compact form factor suitable for wearable applications.

Feature Summary

• Integrates ultra-low quiescent current voltage regulators for efficient power management
• Includes a dedicated battery charger optimized for single-cell lithium-ion systems
• Designed as a comprehensive charge management solution for space-constrained wearable devices

Applications

• Wearable electronics requiring compact battery management
• Small portable lithium-ion powered systems
• Ultra-low power consumer devices

Procurement Notes

Verify the obsolete status of this part number before integration, as it is no longer manufactured by Analog Devices/Maxim Integrated. Confirm that existing inventory or limited supply sources meet quality standards. Ensure design-in decisions account for long-term availability constraints associated with discontinued components. Cross-reference datasheet specifications against current project requirements to validate compatibility.

Selection Notes

Select this component only if its specific integration of regulators and charger fits the system architecture. Evaluate the 2.7V to 5.5V input range against available power rails. Consider the thermal performance within the specified -40°C to +85°C window. Assess whether the single-cell 4.2V charging profile aligns with the target battery chemistry and capacity needs.

Part Context

This part belongs to the MAX14690 series from Maxim Integrated, now part of Analog Devices. It represents a specialized class of power management ICs focused on miniaturization and efficiency for mobile and wearable markets. The DEWX suffix indicates the specific package type and temperature grade configuration used in this variant.

Replacement Considerations

As the product is obsolete, direct substitutes are not officially confirmed in public documentation. Engineers must evaluate newer generations of battery management ICs from the manufacturer's portfolio. Verify pinout compatibility and electrical parameter equivalence when selecting alternative components.