MP7740DN-LF-P

Overview

The MP7740DN-LF-P is a Class-D mono single-ended audio amplifier manufactured by Monolithic Power Systems. It delivers 15 W of output power into a 4 Ohm load with a total harmonic distortion plus noise of 0.05%. The device operates on a supply voltage ranging from 9.5 V to 36 V and draws a quiescent current of 1.5 mA. It features a shutdown function and is housed in an SOIC-8 surface-mount package. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Class-D topology for high efficiency and high-fidelity audio reproduction
• Integrated pop-and-click suppression circuitry
• Short-circuit protection for enhanced reliability

Applications

• Single-channel speaker amplification systems
• Portable audio devices requiring efficient power management
• Consumer electronics utilizing single-supply architectures

Procurement Notes

Verify the specific suffix against official documentation, as the provided source material primarily references the MP7740DN-LF-Z variant. Confirm that the LF-P designation corresponds to the correct tape-and-reel packaging configuration intended for automated assembly processes. Ensure compatibility with standard SOIC-8 footprints during procurement validation.

Selection Notes

Select this component when a single-channel solution is required rather than stereo configurations like the MP7742 series. The 15 W power rating at 4 Ohms suits applications where moderate output is sufficient without the complexity of bridge-tied load topologies. Verify that the input voltage range aligns with the system's power supply rails before integration.

Part Context

This part belongs to the MP7740 family of D-class audio amplifiers from Monolithic Power Systems. The family includes variants such as the MP7740DN and MP7740DF, which share similar electrical characteristics but differ in package types. The MP7740 series is designed to replace traditional AB-class amplifiers by offering superior efficiency while maintaining high audio quality standards.

Replacement Considerations

MP7740DN-LF-Z