MAX8805YEWEBD+T

Overview

The MAX8805YEWEBD+T is a discontinued PWM step-down converter from Analog Devices/Maxim Integrated, designed for WCDMA PA power 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 delivers up to 600mA output current at a fixed 2MHz switching frequency. It is housed in a compact 16-WLP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated hysteretic step-down conversion topology optimized for RF power amplifier efficiency
• Fixed high-frequency switching operation to minimize external passive component size
• Adjustable output voltage capability supporting various low-voltage logic standards

Applications

• WCDMA Power Amplifier (PA) bias supply
• RF transceiver power management
• Low-voltage digital core regulation in mixed-signal systems

Procurement Notes

This specific part number is officially listed as obsolete by the manufacturer. Verification of availability should focus on authorized distributors or secondary market sources rather than direct factory orders. Buyers must confirm RoHS compliance status and lot dates carefully, as production has ceased. Cross-referencing with the official MAX8805 series datasheet is recommended to ensure functional equivalence if sourcing alternatives.

Selection Notes

Engineers selecting this component should note its discontinuation status and evaluate current design requirements against available legacy stock. The 16-WLP package requires specific PCB footprint considerations during layout. Designers should verify that the 600mA current rating and 2MHz switching frequency align with their thermal and EMI constraints for portable wireless devices.

Part Context

The MAX8805YEWEBD+T belongs to the MAX8805Y series of highly integrated DC-DC converters. These devices are specifically engineered for mobile phone applications, particularly powering power amplifiers in cellular handsets. The series emphasizes small solution size and high efficiency to extend battery life in portable electronics.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material due to the component's obsolete status.