MAX8805YEWEAA+T

Overview

The MAX8805YEWEAA+T is a high-efficiency, low-noise step-down switching regulator manufactured by Analog Devices Inc. under the Maxim Integrated brand. Designed for mobile and handheld applications, this device integrates a 600mA power switch and operates from an input voltage range of 2.7V to 5.5V. It delivers a fixed output voltage of either 2.5V or 3.0V with up to 600mA of output current. The converter utilizes a fixed 2MHz PWM frequency to minimize external component size while maintaining stable regulation. It is housed in a compact 16-pin Wafer Level Package (WLP) suitable for space-constrained designs.

Feature Summary

• Integrates a 600mA power switch for efficient step-down conversion
• Fixed 2MHz switching frequency reduces passive component footprint
• Low noise architecture optimized for RF and cellular PA biasing
• Compact 16-pin WLP package for minimal board area usage

Applications

• Power supply for WCDMA and CDMA Power Amplifiers
• Bias voltage generation for RF front-end modules
• General-purpose DC-DC conversion in mobile phones
• Portable electronic devices requiring low noise power rails

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 the required output voltage option. Request original datasheets and test reports to validate performance specifications before integration into production systems.

Selection Notes

Select this regulator when low output noise and small form factor are critical requirements. The fixed 2MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Verify that the load current does not exceed the 600mA limit. Consider thermal dissipation within the WLP package based on the input-output voltage differential and ambient operating conditions.

Part Context

This component belongs to the MAX8805Y series of high-efficiency, low-noise step-down converters. The series is specifically engineered for powering sensitive analog circuits in wireless communication devices. The 'YE' suffix typically denotes the fixed output voltage variant, while 'WEBG' indicates the specific WLP-16 packaging configuration used for surface-mount assembly.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the discontinued status indicated in related listings, verify compatibility with alternative regulators such as the MAX8805WEWEEE+T or other series members only after confirming pinout and electrical parameter alignment.