MAX8507ETE

Overview

The MAX8507ETE is a high-efficiency, synchronous step-down DC-DC converter manufactured by Maxim Integrated. It integrates a 75mΩ bypass FET and operates with an input voltage range of 2.7V to 5.5V. The device provides a regulated output voltage adjustable from 0.4V to 3.4V, supporting up to 1.5A load current. It features a compact 16-pin TQFN (4x4mm) package with an exposed pad for thermal dissipation. Operating temperatures range from -40°C to +85°C, ensuring reliability in mobile and portable applications.

Feature Summary

• Integrates a low-on-resistance bypass FET for efficient linear regulation during low dropout conditions
• Synchronous rectification design maximizes conversion efficiency across wide load ranges
• Compact surface-mount packaging facilitates space-constrained board layouts

Applications

• WCDMA and cdmaOne handset voltage regulation
• Portable consumer electronics power management
• Battery-powered devices requiring high efficiency

Procurement Notes

Verify the specific suffix (e.g., +T for tape and reel or bare part number) against your bill of materials. Confirm RoHS compliance status as indicated by the '+' designation. Ensure the 16-TQFN footprint matches your PCB design guidelines. Cross-reference the manufacturer's latest datasheet revision for any pinout or electrical characteristic updates before finalizing procurement.

Selection Notes

Select this component when a combined switching regulator and LDO solution is required to optimize efficiency and noise performance. It is suitable for systems where input voltage may drop close to the output voltage, leveraging the integrated bypass FET. Consider the 16-pin thermal pad requirement for adequate heat dissipation under full load conditions compared to standard non-exposed pad packages.

Part Context

This part belongs to the MAX85xx series of power management ICs designed for mobile communication devices. It addresses the need for clean, stable power rails in RF sections of handsets. The integration of the bypass FET distinguishes it from standard buck converters by providing seamless transition between switching and linear modes without external components.

Replacement Considerations

Check for direct pin-compatible alternatives within the MAX85xx family. Verify if newer revisions from Analog Devices offer improved thermal performance or updated feature sets. Ensure substitute parts maintain the same 16-TQFN package dimensions and thermal characteristics.