MP1720DH-216-LF

Audio Amplifiers Overview

The MP1720DH-216-LF-Z is a Class-D audio amplifier from Monolithic Power Systems. It delivers 2.78 W output power into a 4 Ω load at 5 V supply voltage with 0.15% THD+N. The device features differential inputs and outputs, operating within a 2.5 V to 5.5 V range. Key electrical parameters include a gain of 21.6 dB, quiescent current of 7 mA, slew rate of 200 V/μs, and input offset voltage of 6 mV. It functions in temperatures from -40°C to +85°C and utilizes an MSOP-10 package.

Audio Amplifiers Feature Summary

• Class-D topology providing high efficiency up to 90% for portable applications
• Integrated EMI reduction scheme enabling compliance with FCC radiated emissions standards without output filters
• Built-in pop-and-click suppression circuitry to eliminate startup noise
• Comprehensive protection mechanisms including short-circuit and thermal overload shutdown

Audio Amplifiers Applications

• Mobile phones
• Tablets
• MP3 players
• Portable audio equipment

Audio Amplifiers Procurement Notes

Verify the complete part number suffix, specifically "-Z" versus "-P", as these indicate different packaging formats (Reel vs. Cut Tape). Confirm RoHS compliance status through official manufacturer documentation before procurement. Ensure the selected variant matches the required gain configuration of 21.6 dB. Cross-reference the specific date code and manufacturing lot against quality requirements.

Audio Amplifiers Selection Notes

Select this component when designing battery-powered devices requiring high-fidelity audio with minimal external filtering. The fixed 21.6 dB gain suits applications needing specific signal amplification levels. Consider the MSOP-10 package constraints for PCB layout. Evaluate the 2.5 V minimum supply voltage against the system's lowest battery state to ensure stable operation throughout discharge cycles.

Audio Amplifiers Part Context

This device belongs to the MP1720 series of mono Class-D audio amplifiers. The series offers various gain options selectable via pins, ranging from 3 dB to 21.6 dB. It is designed for space-constrained portable electronics where efficiency and audio quality are critical. The DH suffix denotes the MSOP-10 package variant within this product family.

Audio Amplifiers Replacement Considerations

Other variants within the MP1720 series, such as MP1720DH-12-LF-Z or MP1720DH-9-LF-Z, share identical pinouts and functionality but offer different fixed gain values. Substitution requires verifying that the alternative gain level meets the system's audio signal chain requirements without necessitating schematic changes.