MAX8805ZEWEAC+T

Overview

The MAX8805ZEWEAC+T is a high-efficiency, 600mA PWM step-down converter designed for WCDMA power amplifier applications. It operates with an input voltage range of 2.7V to 5.5V and provides a single adjustable output from 0.4V to 5.5V. The device features a fixed 2MHz switching frequency and functions within a temperature range of -40°C to +85°C. Packaged in a compact 16-WLP format, it supports surface-mount installation.

Feature Summary

• Integrated hysteretic step-down conversion architecture optimized for RF power amplifier efficiency
• Fixed 2MHz switching frequency enables the use of small external passive components
• Compact 16-ball wafer-level package facilitates dense PCB layout

Applications

• WCDMA Power Amplifier (PA) power supply
• RF module biasing circuits
• Portable communication devices requiring efficient step-down regulation

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to obsolete status. Confirm RoHS compliance documentation matches specific lot codes. Validate that the 16-WLP package condition meets handling requirements for sensitive wafer-level components during assembly processes.

Selection Notes

Select this component when designing for WCDMA PA power management requiring 600mA output current. Ensure input voltage stays within 2.7V to 5.5V limits. Consider the 2MHz frequency for minimizing inductor size. Verify thermal performance within the -40°C to +85°C operating range for target environmental conditions.

Part Context

This part belongs to the MAX8805Y series of step-down converters from Analog Devices/Maxim Integrated. It is specifically engineered for mobile phone power amplifiers. The device integrates a power switch and control circuitry into a minimal footprint, addressing space constraints in modern wireless handsets.

Replacement Considerations

Public records indicate the MAX8805YEWEBG+T as a related variant within the same family. Verify pin compatibility and electrical specifications before substitution. Cross-reference datasheets for any differences in output current ratings or package variations.