MP7752GF

Overview

The MP7752GF is a stereo Class-D audio amplifier manufactured by Monolithic Power Systems. It operates on a single supply voltage ranging from 5V to 18V and delivers up to 15W per channel into an 8-ohm load in a bridge-tied load (BTL) configuration. The device utilizes an inductorless architecture with fixed-frequency switching, eliminating the need for external output inductors. It features integrated feedback loops for high power efficiency and low total harmonic distortion plus noise (THD+N). The component is housed in a 28-pin TSSOP package with an exposed pad for thermal management.

Feature Summary

• Inductorless Class-D topology simplifies board layout and reduces component count
• Integrated feedback loop ensures stable operation and improved audio fidelity
• Fixed-frequency switching minimizes electromagnetic interference (EMI) variability
• Built-in protection mechanisms safeguard against thermal overload and short circuits

Applications

• Portable Bluetooth speakers
• Home theater systems
• Active loudspeakers
• Audio docking stations

Procurement Notes

Verify the specific suffix (e.g., GF vs. GF-P) to ensure correct packaging and tape-and-reel specifications. Confirm that the application design supports the 5V to 18V input range and that the PCB layout accommodates the 28-TSSOP-EP thermal requirements. Cross-reference the datasheet for latest revision notes regarding electrical characteristics before finalizing procurement.

Selection Notes

Select this component for designs requiring high-efficiency stereo amplification without the space penalty of output inductors. It is suitable for applications where fixed switching frequency EMI filtering is preferred over spread-spectrum techniques. Ensure the power supply can handle peak current demands during high-volume audio playback to maintain performance within specified THD limits.

Part Context

This part belongs to the MP7752 family of analog-input Class-D amplifiers. It is designed as a direct replacement for older discrete or inductive Class-D solutions in compact audio devices. The series emphasizes ease of implementation and robust performance in consumer electronics environments.

Replacement Considerations

MP7752GF-P is a documented substitute variant within the same product line. Verify pinout compatibility and thermal dissipation capabilities when substituting.