MAX8805WEWEEE+TC8E

Overview

The MAX8805WEWEEE+TC8E is a power management IC designed for WCDMA PA applications. It integrates a 2MHz, 650mA PWM step-down converter with an internal 60mΩ bypass FET and dual 200mA low-noise LDOs. The device operates from a 2.7V to 5.5V input range, providing regulated outputs suitable for RF systems. It utilizes a 16-WLP surface-mount package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-frequency PWM step-down converter with an integrated bypass FET for efficient power conversion.
• Includes dual low-noise linear regulators (LDOs) to support sensitive RF circuitry requirements.
• Optimized specifically for powering Power Amplifiers in WCDMA communication systems.

Applications

• WCDMA Power Amplifier (PA) power supply
• RF system power management
• Mixed-signal PCB power distribution

Procurement Notes

Verify the specific suffix TC8E against official Analog Devices documentation to confirm tape-and-reel packaging and exact electrical characteristics. Ensure compatibility with existing BOM requirements for WLP-16 footprint and thermal performance. Cross-reference part numbers carefully as Maxim Integrated products are now under Analog Devices Inc., and legacy naming conventions may vary across distributor catalogs.

Selection Notes

Select this component when designing WCDMA transmitters requiring a compact solution that combines switching efficiency with low-noise linear regulation. The integrated topology reduces external component count compared to discrete solutions. Verify that the 650mA buck current rating and 200mA LDO ratings meet the peak and quiescent demands of the target PA and RF front-end modules.

Part Context

This part belongs to the MAX8805 family of specialized PMICs developed by Maxim Integrated, now part of Analog Devices. These devices are engineered to simplify power architecture in mobile handsets by consolidating multiple voltage rails into a single small-footprint package. The family targets the stringent noise and efficiency requirements of third-generation wireless standards.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Analog Devices technical support or authorized distributors for current alternative recommendations if this specific variant is discontinued or unavailable.