MP7747DQ-LF-P

Overview

The MP7747DQ-LF-P is a Class D monaural single-ended audio amplifier manufactured by Monolithic Power Systems. It delivers 20W of output power into a 4Ω load when supplied with a VDD of 24V. The device integrates 250mΩ power MOSFETs to minimize solution size and includes pop-and-click suppression, short-circuit protection, and adjustable UVLO via the UVP node. Operating from a single supply, it utilizes MPS proprietary variable frequency topology for high fidelity and efficiency.

Feature Summary

• Integrates 250mΩ power MOSFETs to reduce external component count
• Features built-in pop-and-click suppression circuitry
• Includes short-circuit protection mechanisms
• Supports adjustable VDD shutdown voltage through UVP control

Applications

• Driving 4Ω speakers in single-ended configurations
• High-fidelity audio systems requiring high efficiency
• Compact consumer electronics utilizing single-supply operation

Procurement Notes

Verify the specific suffix 'P' against official datasheets to confirm packaging details, as variations exist within the MP7747 family. Ensure compatibility with the required QFN-10 (3x3) footprint during PCB layout. Confirm RoHS compliance status if environmental regulations apply to the target assembly process.

Selection Notes

Select this component for designs requiring a single-channel amplifier capable of delivering 20W into low impedance loads. It is suitable for applications prioritizing small form factors due to integrated power stages. Consider the adjustable UVLO feature if precise power management thresholds are necessary for the system architecture.

Part Context

This part belongs to the MP7747 series of fully integrated Class D audio amplifiers. It shares architectural similarities with other MPS audio products like the MP7720 and MP7748 but is optimized for single-ended operation. The series emphasizes high efficiency comparable to Class A/B amplifiers while maintaining compact physical dimensions.

Replacement Considerations

MP7747DQ-LF-Z serves as an alternative packaging option within the same functional family.