MPQ4488TGU-FD2-AEC1-Z

Overview

The MPQ4488TGU-FD2-AEC1-Z is a high-efficiency synchronous step-down DC-DC converter manufactured by Monolithic Power Systems. It features three independent output channels with fixed voltages of 5.1 V, 5.17 V, and 5.3 V. The device supports an input voltage range from 6 V to 36 V and delivers up to 6 A of output current per channel. Operating at a switching frequency of 2.2 MHz, it ensures compact design while maintaining low static current of 1 mA. Qualified under AEC-Q100 standards, it functions reliably within a temperature range of -40°C to +125°C. Packaged in a 26-pin QFN format, this monolithic regulator integrates buck topology for robust automotive power management applications.

Feature Summary

• Three independent fixed-voltage output channels designed for multi-rail power distribution
• Wide input voltage range accommodating automotive load dump and cold crank conditions
• AEC-Q100 qualified for reliable operation in harsh automotive environments
• High switching frequency enables the use of small external passive components

Applications

• Automotive infotainment systems requiring multiple stable voltage rails
• Digital cockpit modules needing synchronized power sequencing
• ADAS sensor interfaces demanding low-noise regulated power supplies

Procurement Notes

Verify the specific suffix FD2 against official MPS documentation to confirm pinout and electrical characteristics match your schematic requirements. Confirm AEC-Q100 qualification status directly with the manufacturer or authorized distributors. Ensure thermal management strategies align with the QFN-26 package limitations. Cross-reference the part number with the latest datasheet revision to avoid obsolete variants.

Selection Notes

Select this component when designing automotive electronics requiring three distinct fixed output voltages from a single controller. It is suitable for systems where space constraints necessitate a high-frequency switching regulator. Consider alternatives if variable output voltages are required, as this model provides fixed settings. Evaluate thermal performance based on the total load current across all three channels.

Part Context

This device belongs to the MPQ4488 series of multi-output synchronous buck converters from Monolithic Power Systems. It is engineered specifically for automotive applications, offering integrated protection features and high efficiency. The series supports various packaging options and output configurations to meet diverse power management needs in modern vehicle architectures.

Replacement Considerations

Officially recommended replacements for new designs include MPQ4488BGU-AEC1-Z and MPQ4488BGU-FD-AEC1Z. Verify compatibility regarding pin assignments and electrical specifications before substitution.