MAX8525EEI

Overview

The MAX8525EEI is a synchronous buck switching controller manufactured by Analog Devices Inc./Maxim Integrated. It operates within a frequency range of 210 kHz to 1.2 MHz and supports up to eight phases for voltage regulator module (VRM) applications. The device features a wide input voltage range and integrates high-side and low-side drivers with adjustable dead-time control. It utilizes a QSOP-28 package and functions within an industrial temperature range of -40°C to +85°C, designed for efficient power conversion in multi-phase DC/DC step-down configurations.

Feature Summary

• Supports multi-phase VRM architectures with integrated PWM control logic
• Features adjustable switching frequency and programmable current sharing
• Includes built-in protection mechanisms for thermal and over-current conditions

Applications

• Voltage regulator modules for high-performance processors
• Multi-phase DC/DC step-down power supplies
• Server and workstation mainboard power distribution

Procurement Notes

Verify the exact suffix designation against official manufacturer documentation, as variations may indicate different temperature grades or packaging options. Confirm RoHS compliance status through the latest datasheet revision. Ensure compatibility with existing board layouts regarding the QSOP-28 footprint and pinout configuration before integration.

Selection Notes

Select this component when designing multi-phase power stages requiring precise load regulation and dynamic response. Evaluate the required phase count against thermal constraints and PCB space availability. Consider the operating frequency range to optimize inductor selection and minimize output ripple voltage while maintaining efficiency targets.

Part Context

This part belongs to the MAX852x series of synchronous buck controllers from Maxim Integrated. These devices are engineered for high-density power delivery systems. The EEI suffix typically denotes specific commercial or industrial grade variants within the broader product family, distinguished by environmental ratings and manufacturing lot traceability standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.