MP7758GF-P

Overview

The MP7758GF-P is a fully integrated, fixed-frequency, inductorless Class-D audio amplifier manufactured by Monolithic Power Systems. It delivers 15W per channel into an 8-ohm load with a THD+N of 0.5%. The device operates on a single supply voltage ranging from 5V to 18V and features integrated 240mΩ power MOSFETs for reduced solution size. It includes short-circuit protection and is housed in a TSSOP-EP-28 package suitable for surface mount applications.

Feature Summary

• Inductorless Class-D architecture eliminates external inductors to minimize board space
• Integrated high-side and low-side power MOSFETs reduce component count
• Built-in short-circuit protection ensures robust operation under fault conditions

Applications

• Portable audio devices requiring compact form factors
• Home theater systems utilizing stereo BTL configurations
• Multi-channel audio amplification in consumer electronics

Procurement Notes

Verify the specific suffix (GF-P) against official MPS documentation to confirm pinout and thermal pad configuration. Ensure compatibility with existing PCB layouts designed for the TSSOP-EP-28 package. Confirm that the fixed-frequency switching aligns with EMI requirements for the target application environment before finalizing procurement.

Selection Notes

Select this component when minimizing passive components is critical due to space constraints. The inductorless design simplifies layout compared to traditional Class-D amplifiers. Verify that the 18V maximum supply voltage meets system power requirements and that the 15W output power at 8 ohms satisfies the acoustic needs of the intended speakers.

Part Context

This part belongs to the MP7758 family of audio amplifiers from Monolithic Power Systems. It shares architectural similarities with other inductorless Class-D solutions but is distinct in its specific power rating and fixed-frequency operation. The GF-P designation indicates the specific package and tape-and-reel packaging format.

Replacement Considerations

Direct substitutes include the MP7758GF-Z variant, which shares identical electrical characteristics but differs in packaging type. Other MPS Class-D amplifiers may serve as functional alternatives if inductorless topology is not strictly required, though pinouts and control interfaces must be verified.