MAX8805ZEWEAA+T

Overview

The MAX8805ZEWEAA+T is a high-efficiency, synchronous step-down DC-DC converter manufactured by Analog Devices Inc. (Maxim Integrated). It operates with an input voltage range of 2.7V to 5.5V and provides a programmable output voltage from 0.4V to 5.5V. The device delivers up to 600mA of continuous output current. It utilizes a fixed 2MHz switching frequency to minimize external component size. The IC is housed in a compact 16-WLP package and is rated for operation between -40°C and +85°C.

Feature Summary

• Synchronous PWM step-down topology for high efficiency
• Integrated power switches eliminate need for external diodes
• Fixed 2MHz switching frequency reduces passive component footprint
• Compact WLP packaging suitable for space-constrained designs

Applications

• Portable consumer electronics
• Battery-powered devices
• Wireless communication modules

Procurement Notes

Verify the specific suffix 'ZEWEAA' against the official Maxim Integrated datasheet to confirm pinout and electrical characteristics. Confirm RoHS3 compliance status as indicated in distributor records. Check for obsolescence notices or product change notifications (PCN) prior to finalizing procurement plans.

Selection Notes

Select this component when a small form factor is required alongside moderate current demands. Ensure the application input voltage remains within the 2.7V to 5.5V range. Verify that the thermal performance of the 16-WLP package meets the system's heat dissipation requirements under maximum load conditions.

Part Context

This part belongs to the MAX8805 family of low-noise, high-efficiency step-down converters. These devices are designed for applications requiring stable power delivery from single-cell lithium-ion batteries or other regulated supply rails. The family emphasizes miniaturization through integrated switches and high-frequency operation.

Replacement Considerations

Consult the manufacturer's cross-reference guide for direct replacements. Potential alternatives include other MAX8805 variants with different suffixes or comparable synchronous buck converters from the same manufacturer offering similar current ratings and package dimensions.