MAX8805ZEWEAE+T

Overview

The MAX8805ZEWEAE+T is a 600mA 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 a single adjustable output from 0.4V to 5.5V. The device features a fixed switching frequency of 2MHz and supports an output current of 600mA. It functions within a temperature range of -40°C to +85°C and utilizes a 16-WLP package.

Feature Summary

• Integrates a high-frequency PWM controller for efficient power conversion
• Supports bypass mode to enhance PA performance and system efficiency
• Designed specifically for WCDMA power amplifier applications

Applications

• WCDMA Power Amplifier (PA) supply
• Cellular phone power management
• Portable electronic device voltage regulation

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to discontinued status. Confirm RoHS compliance and lot traceability upon receipt. Ensure storage conditions meet moisture sensitivity level requirements to prevent package damage before reflow soldering.

Selection Notes

Select this component for designs requiring a compact, high-efficiency buck regulator for RF power stages. The 2MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure the load current does not exceed the 600mA limit and that the input voltage remains within the specified 2.7V to 5.5V window for stable operation.

Part Context

This part belongs to the MAX8805 series of specialized switching regulators. It is designed to replace linear regulators in mobile phone applications to reduce heat dissipation while maintaining low noise profiles suitable for sensitive RF circuits. The series offers various package options tailored for space-constrained handheld devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the product status is listed as obsolete, engineers should consult official replacement guides or contact the manufacturer for qualified alternatives.