MAX77839DEFQ+

Overview

The MAX77839DEFQ+ is a synchronous step-down DC-DC converter manufactured by Analog Devices Inc./Maxim Integrated. It operates with an input voltage range of 2.5V to 5.5V and delivers a maximum output current of 2.5A. The device features adjustable switching frequencies from 400kHz to 2.2MHz and supports output voltages ranging from 0.6V to 5.2V. Packaged in a compact 10-bump WLP (WLCSP) format measuring 1.2mm x 1.2mm, it ensures efficient power management for space-constrained applications.

Feature Summary

• Synchronous buck topology for high efficiency
• Compact 10-bump WLP packaging
• Adjustable switching frequency operation
• Integrated soft-start functionality

Applications

• Portable consumer electronics
• Mobile communication devices
• Embedded systems power supplies

Procurement Notes

Verify the specific suffix 'DEFQ' against official Analog Devices documentation to confirm temperature rating and tape/reel specifications. Ensure compatibility with the intended PCB footprint for the 10-bump WLP package. Cross-reference the manufacturer's latest datasheet for any updates on recommended operating conditions or pin assignments prior to finalizing procurement orders.

Selection Notes

Select this component when a small form factor and high current density are required for single-rail power distribution. The wide input voltage range accommodates battery-powered systems. Consider the thermal performance of the WLP package under full load conditions. Verify that the required output voltage falls within the supported 0.6V to 5.2V range for optimal regulation stability.

Part Context

This part belongs to the Maxim Integrated portfolio of highly integrated power management solutions. It is designed to replace older discrete regulator designs or larger packaged converters in modern portable devices. The MAX77839 series focuses on minimizing board space while maintaining robust transient response and efficiency standards typical of mobile application requirements.

Replacement Considerations

Consult the Analog Devices replacement guide for direct pin-compatible alternatives. Verify if newer revisions of the MAX77839 series offer improved thermal characteristics or updated packaging options suitable for the target assembly process.