MAX8805YEWEAC+T

Overview

The MAX8805YEWEAC+T is a specialized step-down PWM converter designed for WCDMA power amplifier supply regulation. It operates with an input voltage range of 2.7 V to 5.5 V and provides a single adjustable output from 0.4 V to 5.5 V. The device supports up to 600 mA output current. It functions within an ambient temperature range of -40°C to +85°C and is housed in a compact 16-WLP package.

Feature Summary

• Optimized for WCDMA power amplifier supply regulation
• Hysteretic step-down conversion architecture
• Integrated bypass mode for enhanced system efficiency

Applications

• WCDMA power amplifier biasing
• Mobile phone RF front-end power management
• Battery-powered portable devices requiring efficient PA supply

Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm package integrity and RoHS compliance against the official datasheet specifications. Ensure compatibility with existing PCB footprints for the 16-WLP variant before integration into new designs.

Selection Notes

Select this component specifically for WCDMA applications requiring dedicated PA regulation. Evaluate thermal performance under maximum load conditions given the small form factor. Consider the hysteretic control method for transient response requirements in RF circuits.

Part Context

This part belongs to the MAX8805 family of special-purpose regulators. It is distinct from general-purpose buck converters by its optimization for RF power amplifier efficiency. The YEWEAC suffix indicates specific packaging and tape-and-reel configuration details.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the discontinued status, direct pin-to-pin replacements may require schematic redesign or adapter solutions.