MP7770GFR-Z

Overview

The MP7770GFR-Z is a single-ended Class-D audio amplifier manufactured by Monolithic Power Systems. It delivers 45 W of output power into an 8 Ohm load. The device operates within a supply voltage range of 9.5 V to 36 V and supports analog input signals. Key electrical parameters include a total harmonic distortion plus noise (THD+N) of 0.05% and a maximum output current of 8.5 A. The unit features two channels, a shutdown function, and a quiescent current of 3 mA. It is housed in a TSSOP-EP-28 package and functions reliably across an operating temperature range from -40°C to +125°C.

Feature Summary

• Single-ended Class-D architecture for high-efficiency audio amplification
• Integrated thermal protection and under-voltage lockout mechanisms
• Supports analog input with low distortion performance

Applications

• High-fidelity audio systems
• Portable speaker designs
• Home theater amplifiers

Procurement Notes

Verify the exact suffix against official MPS documentation to confirm pin compatibility and thermal pad specifications. Ensure the ordering part number matches the required package variant. Cross-reference datasheet revisions to validate functional consistency before integration into production designs.

Selection Notes

Select this component when a single-ended Class-D topology is required for driving 8 Ohm loads at high power levels. Consider the 36 V maximum supply rating and TSSOP-EP-28 package constraints during PCB layout planning. Evaluate thermal management requirements based on the 45 W output capability and ambient operating conditions.

Part Context

This component belongs to the MP7770 series of audio amplifiers from Monolithic Power Systems. The series focuses on delivering high-power audio solutions in compact surface-mount packages. The GFR-Z designation indicates specific packaging and environmental compliance attributes defined by the manufacturer for this particular product line iteration.

Replacement Considerations

Consult official MPS substitution guides for verified alternatives. No public substitute part numbers are confirmed in available documentation.