MP7720DS-LF-P

Overview

The MP7720DS-LF-P is a mono 20W Class-D single-ended audio amplifier from Monolithic Power Systems. It operates on a single supply voltage ranging from 9.5V to 24V and delivers 20W of output power into a 4Ω load at VDD = 24V. The device features an integrated 180mΩ power MOSFET, achieving 93% efficiency at full power. Total Harmonic Distortion plus Noise (THD+N) is specified at 0.04% for 1W output into an 8Ω load. Typical noise is 190µV, with a switching frequency up to 1MHz. It includes startup/shutdown pop elimination, thermal protection, and mute/standby modes.

Feature Summary

• Integrates 180mΩ power MOSFETs to reduce solution size
• Includes dedicated startup and shutdown pop elimination circuitry
• Features short circuit and thermal protection mechanisms
• Supports mute and standby modes for low power consumption

Applications

• Surround sound DVD systems
• Televisions
• Flat panel monitors
• Multimedia computers
• Home stereo systems

Procurement Notes

Verify the specific suffix LF-P against official MPS documentation to confirm lead-free status and tape-and-reel packaging configuration. Ensure the SOIC-8 package variant matches design requirements. Cross-reference the part number with current datasheets to validate active status and any potential obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component for applications requiring high-efficiency mono audio amplification in space-constrained designs. The single-supply operation simplifies power architecture compared to dual-supply alternatives. Consider the integrated protection features for robustness in consumer electronics environments where thermal management may be limited.

Part Context

This part belongs to MPS’s second-generation fully integrated Class-D audio amplifier series. It is designed to dramatically reduce external component count by integrating power switches and control logic. The MP7720 family targets portable and fixed audio applications needing high fidelity with minimal board space.

Replacement Considerations

MP7720DP-LF: PDIP8 package variant. MP7720DS-LF-Z: SOIC-8 package variant.