MAX8805ZEWECD+T

Overview

The MAX8805ZEWECD+T is a 600mA PWM step-down converter designed for WCDMA PA power applications. It operates with an input voltage range of 2.7V to 5.5V and provides adjustable output voltages from 0.4V to 5.5V. The device features a 2MHz switching frequency and delivers up to 600mA output current. It is housed in a compact 16-WLP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated PWM step-down topology optimized for RF power amplifier efficiency
• Compact 16-WLP surface-mount packaging for space-constrained designs
• Wide input voltage compatibility supporting standard single-cell battery systems

Applications

• WCDMA Power Amplifier (PA) power supply regulation
• Portable wireless communication devices requiring efficient DC-DC conversion
• Battery-powered mobile electronics utilizing low-voltage logic rails

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix codes match the required thermal and mechanical specifications. Request original manufacturer datasheets and RoHS compliance certificates prior to acquisition. Ensure storage conditions adhere to moisture sensitivity level guidelines to prevent package damage during handling.

Selection Notes

Select this component when designing circuits requiring high-efficiency buck conversion for RF power stages. The fixed 2MHz frequency allows for smaller external inductors compared to lower-frequency alternatives. Ensure the load current does not exceed the 600mA limit. Verify that the required output voltage falls within the adjustable 0.4V to 5.5V range supported by the internal feedback network.

Part Context

This part belongs to the MAX8805Y series of high-efficiency step-down converters. It is specifically engineered to meet the stringent power management requirements of third-generation cellular handsets. The device integrates synchronous rectification to minimize conduction losses and improve overall system battery life in portable multimedia applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.