MPQ4228GRE-AEC1-Z

Overview

The MPQ4228GRE-AEC1-Z is a Monolithic Power Systems synchronous step-down converter designed for automotive applications. It features an input voltage range of 4.2 V to 36 V and delivers up to 3 A output current. The device integrates USB charging port support compliant with CDP and Type-C standards, providing 5 V at 3 A in DFP mode. Operating at a fixed switching frequency of 2.2 MHz, it offers low quiescent current of 1 mA and operates within a temperature range of -40°C to +150°C. Qualified under AEC-Q100 standards, it ensures reliability in harsh environments.

Feature Summary

• Integrates USB charging port functionality supporting CDP and Type-C protocols
• AEC-Q100 qualified for automotive grade reliability
• Supports 5V output at 3A in Dedicated Fast Charging (DFP) mode

Applications

• Automotive infotainment systems requiring USB fast charging
• Vehicle head units with integrated power management
• Aftermarket automotive electronics with USB connectivity

Procurement Notes

Verify the specific suffix 'AEC1' confirms automotive qualification status against the manufacturer's latest datasheet. Ensure the QFN-22 package dimensions match your PCB footprint requirements. Confirm that the 2.2 MHz switching frequency aligns with your EMI constraints and inductor selection. Validate input voltage ranges cover your system's transient conditions.

Selection Notes

Select this component when automotive USB fast charging integration is required alongside buck conversion. The fixed 2.2 MHz frequency simplifies external component selection compared to programmable variants. Consider the 3 A output capability for powering high-current peripherals. The wide input range accommodates various automotive battery architectures without additional pre-regulation stages.

Part Context

This part belongs to the MPQ4228 series from Monolithic Power Systems, specialized for automotive power management. It combines standard DC-DC regulation with dedicated USB interface logic. The series targets applications needing compact solutions for charging ports in vehicle dashboards or consoles. It differs from non-automotive counterparts by meeting stricter thermal and reliability standards.

Replacement Considerations

MPQ4228GRE-Q-AEC1-Z is listed as a related variant. Verify if the 'Q' suffix indicates any functional or packaging differences before substitution. No other direct substitutes are confirmed in public documentation.