MAX8999YEXT18+

Overview

The MAX8999YEXT18+ is a special purpose regulator manufactured by Analog Devices Inc./Maxim Integrated. It operates within a specific voltage range and is designed for compact applications. The component utilizes an EXT package style suitable for surface mount technology. It functions as a dedicated power management solution, integrating necessary control logic for efficient operation in portable electronic devices requiring stable power regulation.

Feature Summary

• Integrates synchronous step-down conversion capabilities
• Features ultra-small footprint design for space-constrained boards
• Includes internal compensation to simplify external component count

Applications

• Portable media players
• Smartphones
• Personal digital assistants

Procurement Notes

Verify the exact suffix and temperature grade against the original design specification. Confirm availability status with authorized distributors as supply levels may fluctuate. Ensure the procurement channel provides valid traceability documentation. Check for RoHS compliance markers on the packaging. Validate that the received unit matches the datasheet pinout exactly.

Selection Notes

Select this part when a small synchronous buck converter is required for battery-powered systems. Consider the input voltage range and output current requirements relative to the load. Evaluate the thermal performance within the intended enclosure. Compare the total solution size against alternative linear regulators or larger switching controllers. Verify compatibility with the system's shutdown and enable logic levels.

Part Context

This device belongs to the Maxim Integrated line of power management ICs, specifically targeting mobile communication and consumer electronics markets. It represents a generation of highly integrated DC-DC converters designed to replace multiple discrete components. The product family emphasizes miniaturization and efficiency improvements over previous asynchronous designs.

Replacement Considerations

Check for MAX8999 variants with different output voltages or package options. Verify if the MAX8999T variant offers tape and reel packaging instead of cut tape. Consider the MAX8998 if slightly different electrical characteristics are acceptable.