MAX8805ZEWEDD+T

Overview

The MAX8805ZEWEDD+T is a high-efficiency, hysteretic step-down DC-DC converter designed for WCDMA power amplifier applications. 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 delivers up to 600 mA of output current in a compact 16-WLP package. It features integrated synchronous rectification and supports bypass mode to enhance system efficiency.

Feature Summary

• Integrated hysteretic control architecture for fast transient response
• Optimized for WCDMA power amplifier supply requirements
• Supports bypass mode operation for improved efficiency

Applications

• WCDMA power amplifier biasing
• Portable wireless communication devices
• Cellular phone main power regulation

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels due to potential counterfeit risks. Confirm RoHS3 compliance status and check for obsolescence notices as this part may be discontinued. Ensure the 16-WLP package availability matches your PCB footprint requirements before finalizing procurement plans.

Selection Notes

Select this component when designing for WCDMA PA supplies requiring low noise and high efficiency. The hysteretic control eliminates the need for external compensation networks. Verify that the required output voltage falls within the 0.4 V to 5.5 V adjustable range and that the 600 mA current capability meets load demands.

Part Context

This part belongs to the MAX8805 family of step-down converters specifically engineered for RF power amplifier applications. It shares architectural similarities with other Maxim Integrated PMICs but is distinctively tuned for cellular PA efficiency. The 16-WLP package offers a small footprint suitable for space-constrained mobile designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices official resources for direct replacements or pin-compatible alternatives if this specific variant is unavailable.