MPQ3324GRE-AEC1-P

Overview

The MPQ3324GRE-AEC1-P is an automotive-grade, synchronous step-down DC/DC converter manufactured by Monolithic Power Systems. It integrates two high-efficiency power switches and operates with a fixed 2.5MHz switching frequency to minimize external component size. The device supports an input voltage range of 4.5V to 28V, delivering up to 3A output current. It features adjustable output voltages from 0.6V to 20V via an external resistor divider. Key protections include overcurrent, thermal shutdown, and soft-start functionality, ensuring reliable operation in demanding automotive environments.

Feature Summary

• Automotive AEC-Q100 qualified for reliability in vehicle applications
• Integrated synchronous rectification for high efficiency across load ranges
• Fixed 2.5MHz switching frequency reduces passive component footprint
• Comprehensive protection mechanisms including thermal and overcurrent safeguards

Applications

• Infotainment systems power distribution
• Telematics control unit supply
• ADAS sensor module powering
• Body control module (BCM) regulation

Procurement Notes

Verify the specific suffix 'AEC1' confirms automotive qualification status against the manufacturer's latest datasheet. Ensure the 'GRE' package marking matches the TSOT-23-6 physical dimensions required for your PCB layout. Cross-reference the revision code to confirm compatibility with your existing design documentation before finalizing procurement orders.

Selection Notes

Select this component when designing for automotive infotainment or telematics where space constraints require a compact solution. The fixed 2.5MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the 3A continuous current capability for moderate load requirements without needing parallel configurations.

Part Context

This part belongs to MPS's MPQ33xx series of automotive-grade buck converters. It complements other devices in the lineup offering similar current ratings but different switching frequencies or pinouts. The series focuses on providing robust performance for various automotive subsystems requiring efficient voltage regulation from higher bus voltages.

Replacement Considerations

Direct substitutes may include other AEC-Q100 qualified synchronous buck converters from competitors like TI or Analog Devices, provided they match the 3A current rating and TSOT-23-6 package. Verify pinout compatibility and electrical specifications carefully before swapping components in an existing design.