MPQ4253AGU-AEC1-P

Overview

The MPQ4253AGU-AEC1-P is a Monolithic Power Systems automotive-grade buck converter designed for dual USB charging applications. It supports one Type-A and one Type-C port within a single channel. The device operates with an input voltage range of 6 V to 36 V and delivers up to 3 A output current. Output voltages are selectable at 5.1 V, 5.17 V, or 5.3 V. It features a programmable switching frequency from 250 kHz to 1 MHz and a typical quiescent current of 1 mA. Qualified under AEC-Q100 standards, it functions reliably between -40°C and +125°C in a QFN-26 package.

Feature Summary

• Integrated support for simultaneous Type-A and Type-C USB charging protocols
• AEC-Q100 Grade 1 qualification for automotive reliability
• Programmable switching frequency for optimized efficiency and component size
• Shutdown pin functionality for system power management

Applications

• Automotive infotainment systems requiring USB connectivity
• Vehicle head units with dual-port charging capabilities
• Aftermarket automotive electronics with USB interfaces
• In-car entertainment hubs supporting fast charging standards

Procurement Notes

Verify the specific suffix (P vs Z) against your reel size requirements, as these denote packaging differences rather than functional changes. Confirm AEC-Q100 compliance documentation is available for your quality assurance processes. Ensure the selected output voltage setting matches your downstream load specifications. Check RoHS status details if environmental compliance is mandatory for your region. Validate that the QFN-26 thermal pad soldering process aligns with your assembly capabilities.

Selection Notes

Choose this component when a single-channel solution is needed to drive two distinct USB ports in automotive environments. The adjustable output voltage allows compatibility with various charging standards without external resistors. The wide input voltage range accommodates standard 12V and 24V vehicle electrical systems. Consider the 3 A current limit for devices requiring moderate charging speeds. The integrated shutdown feature simplifies integration with vehicle ignition logic compared to discrete solutions.

Part Context

This part belongs to the MPQ4253 series of automotive step-down converters. It shares the QFN-26 footprint and core topology with variants like the MPQ4253BGU-AEC1-P, which offers different static current characteristics. The series targets the growing demand for integrated power management in connected vehicles. Unlike higher-current alternatives such as the MPQ4487, this model focuses on cost-effective dual-port implementation.

Replacement Considerations

MPQ4253BGU-AEC1-P is a verified alternative within the same series offering similar functionality but with different quiescent current specifications.