MAX8805ZEWEAD+T

Overview

The MAX8805ZEWEAD+T is a 600mA/650mA PWM step-down converter manufactured by Analog Devices Inc./Maxim Integrated. It operates with an input voltage range of 2.7V to 5.5V and provides an adjustable output voltage from 0.4V to 5.5V. The device features a 2 MHz switching frequency and delivers up to 600 mA of output current. It is housed in a 16-WLP package and supports surface mount installation. The component functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-frequency PWM controller for efficient power conversion
• Supports flexible output voltage adjustment via external resistors
• Designed for compact board space utilization with WLP packaging

Applications

• WCDMA PA power supply
• Portable communication devices
• Battery-powered systems requiring efficient step-down regulation

Procurement Notes

Verify the specific suffix AD against official datasheets to confirm pinout and electrical characteristics, as suffixes often denote tape-and-reel packaging or specific testing criteria. Confirm RoHS compliance status through manufacturer documentation. Check for obsolescence notices, as this part may be discontinued or subject to last-time buys. Ensure compatibility with your PCB footprint for the 16-WLP package.

Selection Notes

Select this component when a compact, high-efficiency buck converter is needed for RF applications. The 2 MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure the input voltage stays within the 2.7V to 5.5V range. Verify that the required output current does not exceed 600mA under all operating conditions and thermal constraints.

Part Context

This part belongs to the MAX8805 family of step-down converters optimized for wireless applications. It shares functional similarities with other Maxim Integrated PMICs but is distinct in its specific current rating and package type. The family is known for integrating bypass modes to enhance performance in cellular handsets.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source data.