MPQ4425MGQB-AEC1-Z

Overview

The MPQ4425MGQB-AEC1-Z is a synchronous step-down LED driver IC from Monolithic Power Systems, designed for automotive applications with AEC-Q100 qualification. It operates within an input voltage range of 4 V to 36 V and delivers a maximum output current of 1.5 A. The device utilizes a fixed switching frequency of 2.2 MHz and features PWM dimming control. Packaged in a QFN-13 form factor, it supports surface-mount installation and functions across a temperature range of -40°C to +125°C.

Feature Summary

• Integrated synchronous buck topology for high-efficiency constant current regulation
• Supports pulse-width modulation (PWM) dimming for precise brightness control
• Includes short circuit protection and thermal shutdown mechanisms

Applications

• Automotive exterior lighting systems
• Interior vehicle illumination circuits
• LED accent lighting modules

Procurement Notes

Verify the specific suffix code against official manufacturer documentation to confirm package type and reel specifications. Ensure that the procurement channel provides valid traceability records for AEC-Q100 certified components. Cross-reference the part number with the latest datasheet revision to confirm pinout compatibility and electrical ratings before integration into production designs.

Selection Notes

Select this component when designing automotive LED drivers requiring a single-channel output with up to 1.5 A capacity. The 2.2 MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the QFN-13 package constraints for thermal management and PCB layout requirements in space-constrained automotive enclosures.

Part Context

This part belongs to the MPQ4425M series of automotive-grade LED drivers. It shares functional similarities with variants like the MPQ4425AGQB-AEC1-Z but may differ in packaging or specific manufacturing lot attributes defined by the suffix codes. The series is engineered to meet rigorous automotive reliability standards while providing efficient power conversion for various lighting loads.

Replacement Considerations

Direct substitutes include other MPQ4425MGQB-AEC1-Z units or compatible parts within the same MPS family such as the MPQ4425AGQB-AEC1-Z, provided pinouts and electrical parameters match exactly. Verify that any alternative maintains the required AEC-Q100 qualification and QFN-13 footprint.