MAX8805WEWEBE+T

Overview

The MAX8805WEWEBE+T is a high-efficiency, low-noise PWM step-down converter manufactured by Analog Devices Inc. under the Maxim Integrated brand. Designed for WCDMA power amplifier applications, it operates with an input voltage range of 2.7 V to 5.5 V and provides a single adjustable output from 0.4 V to 5.5 V. The device delivers up to 650 mA of output current while maintaining a compact footprint in a 16-WLP package. It supports a switching frequency of 2 MHz and functions reliably within an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrated synchronous buck topology for high efficiency
• Optimized for low noise and ripple in RF power amplifier supplies
• Compact wafer-level packaging for space-constrained designs

Applications

• WCDMA Power Amplifier (PA) supply
• RF transceiver biasing
• Portable communication devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for obsolescence notices, as this part may be discontinued. Ensure the specific suffix matches design requirements before ordering.

Selection Notes

Select this component for applications requiring low quiescent current and minimal output noise. Verify that the required output voltage falls within the 0.4 V to 5.5 V adjustable range. Ensure the PCB layout accommodates the 16-WLP package dimensions and thermal requirements for continuous operation at maximum load.

Part Context

This part belongs to the MAX8805 family of DC-DC converters specifically engineered for mobile phone power management. It integrates the control logic, drivers, and power switches into a small form factor, reducing external component count compared to discrete solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official Analog Devices resources for current lifecycle status and potential pin-compatible alternatives.