MPQ4228GRE-C-AEC1-P

Overview

The MPQ4228GRE-C-AEC1-P is a Monolithic Power Systems step-down converter featuring an integrated USB current-limit switch. It supports CDP and Type-C protocols, delivering 5V at 3A in DFP mode. The device operates with a 36V input, utilizes a 2.2MHz switching frequency, and draws 1mA quiescent current. Qualified to AEC-Q100 standards, it functions within a -40°C to +150°C junction temperature range. Packaged in a QFN-22 format, this buck regulator is designed for automotive applications requiring efficient power management and charging capabilities.

Feature Summary

• Integrates a monolithic step-down converter with a dedicated USB current-limit switch
• Supports Charging Downstream Port (CDP) and USB Type-C 5V @ 3A DFP modes
• Automotive-grade qualification ensuring reliability under harsh environmental conditions

Applications

• Automotive infotainment systems
• Vehicle telematics units
• Digital instrument clusters
• On-board diagnostic interfaces

Procurement Notes

Verify the specific suffix against official MPS documentation to confirm package type and tape-and-reel specifications. Ensure the component meets AEC-Q100 Grade requirements for your target automotive application. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement orders.

Selection Notes

Select this component when designing automotive circuits requiring integrated USB charging functionality alongside voltage regulation. The high operating junction temperature of 150°C allows for robust performance in confined engine bay or dashboard spaces. Verify that the 3A output current aligns with the load requirements of the connected USB peripherals.

Part Context

This part belongs to the MPQ4228 series of special purpose regulators from Monolithic Power Systems. It is specifically engineered for automotive environments, combining power conversion with communication protocol handling. The integration reduces external component count compared to discrete solutions, simplifying PCB layout and improving system reliability.

Replacement Considerations

Consult MPS documentation for direct substitutes within the MPQ4228 family. Verify pin compatibility and electrical parameters before replacing existing designs with alternative part numbers.