MAX8508ETE+

Overview

The MAX8508ETE+ is a synchronous step-down DC-DC converter designed for WCDMA applications. It operates with an input voltage range of 2.6V to 5.5V and provides a single adjustable output from 0.75V to 3.4V. The device integrates a 75mΩ typical bypass FET, achieving up to 94% efficiency. It delivers 0.6A output current with a dropout voltage of 38mV at 600mA load. Operating temperatures range from -40°C to +85°C in a 16-pin TQFN package.

Feature Summary

• Integrates a low-resistance bypass FET for efficient power management
• Supports dynamic output voltage adjustment across a wide range
• Optimized for high-efficiency operation in mobile communication systems

Applications

• WCDMA voltage regulation
• Mobile phone power supplies
• Portable electronic devices requiring efficient step-down conversion

Procurement Notes

Verify the specific suffix ETE+ against the official Analog Devices datasheet to confirm pinout and thermal pad configuration. Ensure the component source is authorized to guarantee authenticity, as counterfeit switching regulators may exhibit incorrect electrical characteristics or failure under load conditions.

Selection Notes

Select this component when designing for WCDMA baseband or RF sections requiring a compact, high-efficiency buck regulator. The integrated bypass mode suits applications needing seamless transition between battery and external power sources without significant voltage drop.

Part Context

Part of the Maxim Integrated MAX850x family of specialized regulators. These devices are engineered for cellular handsets, offering small footprint solutions that meet stringent size constraints while maintaining stable performance in noisy mobile environments.

Replacement Considerations

Check for MAX8506ETE+ or MAX8507ETE+ if different output ranges are required. Verify compatibility with existing PCB footprints and control logic before substituting.