MPQ4425AGQBE-AEC1-P

Overview

The MPQ4425AGQBE-AEC1-P is an automotive-grade, high-efficiency synchronous step-down LED driver from Monolithic Power Systems. It features a 1.5 A output current capability and supports an input voltage range of 4 V to 36 V. The device operates at a fixed switching frequency of 2.2 MHz and utilizes a QFN-13 package with wettable flank construction for enhanced solderability. Certified to AEC-Q100 standards, it ensures reliability in demanding environments with an operating temperature range of -40°C to +125°C.

Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 standards for reliable vehicle integration
• High-frequency operation at 2.2 MHz enables the use of compact external components
• Wettable flank QFN-13 package design improves solder joint inspection and mechanical stability
• Integrated PWM dimming control allows precise brightness adjustment without color shift

Applications

• Automotive interior ambient lighting systems
• Vehicle exterior headlamp and tail lamp modules
• Dashboard and instrument cluster illumination drivers
• High-intensity LED accent lighting circuits

Procurement Notes

Verify the specific suffix configuration against official MPS documentation to ensure correct packaging and marking. Confirm that the wettable flank variant matches the required PCB footprint and soldering profile. Cross-reference the AEC-Q100 certification status directly with manufacturer datasheets to validate automotive compliance before finalizing component selection.

Selection Notes

Select this component when a single-channel, high-current LED drive solution is required within a constrained space. The 2.2 MHz frequency is optimal for minimizing passive component size compared to lower-frequency alternatives. Ensure the thermal design accommodates the power dissipation limits inherent to the QFN-13 package under maximum load conditions.

Part Context

This part belongs to the MPQ4425 family of synchronous buck LED drivers designed for automotive applications. It shares core topology with variants like the MPQ4425BGQBE-AEC1-Z but differs in switching frequency and package specifics. The family provides scalable solutions for various LED string configurations while maintaining strict automotive quality requirements.

Replacement Considerations

Direct substitutes include MPQ4425AGQB-AEC1-Z and MPQ4425MGQB-AEC1-Z. Verify pin compatibility and thermal characteristics when swapping between these variants. Note that frequency differences may require adjustments to external inductor and capacitor values.