MPQ7731DF-LF-Z

Overview

The MPQ7731DF-LF-Z is a Class-D audio amplifier manufactured by Monolithic Power Systems. It delivers 30 watts of output power into an 8-ohm load. The device operates within a supply voltage range of 9.5 volts to 18 volts. Total Harmonic Distortion plus noise is specified at 0.1 percent. It functions reliably across a temperature range from -40 degrees Celsius to +85 degrees Celsius. The component is housed in a TSSOP-20 package and supports surface mount installation.

Feature Summary

• AEC-Q100 qualified for automotive reliability standards
• Class-D topology for high-efficiency audio amplification

Applications

• Automotive infotainment systems
• In-car speaker arrays
• Vehicle audio processing units

Procurement Notes

Verify current availability status directly with the manufacturer or authorized distributors, as this part number may be subject to limited supply conditions. Confirm that the specific suffix matches the required automotive grade specifications. Ensure compatibility with existing system voltage rails before procurement. Request updated lifecycle documentation to confirm long-term support availability for production integration.

Selection Notes

Select this component when designing automotive audio circuits requiring a single-channel 30-watt output. Verify that the input power supply can maintain stability between 9.5 volts and 18 volts under all vehicle operating conditions. Ensure the PCB layout accommodates the TSSOP-20 footprint and provides adequate thermal dissipation for continuous operation within the specified temperature range.

Part Context

This amplifier belongs to the MPQ series of automotive-grade components designed for harsh environments. It integrates advanced Class-D technology to maximize efficiency while minimizing heat generation. The AEC-Q100 certification ensures compliance with rigorous automotive quality and reliability standards required for critical vehicle electronics.