MAX8810AETM+

Overview

The MAX8810AETM+ is a high-efficiency, synchronous step-down DC-DC converter from Analog Devices. It integrates two N-channel power switches and operates with an input voltage range of 2.7V to 5.5V. The device delivers up to 1.5A output current with adjustable output voltages. It features a fixed 1.2MHz switching frequency, ensuring compact external component sizes. The converter includes comprehensive protection mechanisms such as overcurrent protection, thermal shutdown, and soft-start functionality for reliable operation in portable applications.

Feature Summary

• Integrates synchronous rectification for enhanced power conversion efficiency
• Incorporates fixed-frequency pulse-width modulation control architecture
• Provides integrated protection against thermal overload and output short circuits

Applications

• Portable communication devices
• Personal digital assistants
• Handheld instrumentation

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when reviewing distributor listings. Confirm the '+'' designation aligns with lead-free RoHS compliance standards required by your manufacturing process. Cross-reference the manufacturer's latest datasheet revision to ensure pinout compatibility with existing PCB layouts before finalizing procurement orders.

Selection Notes

Select this component for designs requiring a compact solution with moderate current demands. The fixed 1.2MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Ensure the input voltage source remains within the specified 2.7V to 5.5V range. Evaluate thermal performance under maximum load conditions to determine if additional heat dissipation measures are necessary for the enclosure design.

Part Context

This part belongs to the MAX8810 family of synchronous buck converters designed for space-constrained mobile electronics. It serves as a direct replacement for older non-synchronous regulators, offering improved efficiency and reduced external component count. The ETM package provides a small footprint suitable for dense board layouts common in modern handheld devices.

Replacement Considerations

Check for MAX8810 variants without the 'A' prefix for potential legacy compatibility. Verify that substitute parts support the same 1.5A output capability and 2.7V minimum input voltage. Ensure the replacement maintains the 1.2MHz switching frequency to avoid redesigning passive components.