12V, 2x5W Class-D Stereo Single-Ended Audio Amplifier

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Product Description

The MP7705 is a stereo 2x5W/2x2.5W Class–D Audio Amplifier. It is one of MPS’ second generation fully integrated audio amplifiers which dramatically reduces solution size by integrating the following:

 250mΩ power MOSFETs 
 Startup / Shutdown pop elimination 
 Short circuit protection
 Mute / Standby

The MP7705 utilizes a single ended output structure capable of delivering 2x5W into 4Ω or 2x2.5W into 8Ω speakers. MPS Class–D Audio Amplifiers exhibit the high fidelity of a Class A/B amplifier at efficiencies greater than 90%. The circuit is based on the MPS’ proprietary variable frequency topology that delivers low distortion, fast response time and operates on a single power supply.

Product Features

  • 2x2.5W Output at VDD = 12V (8Ω load)
  • 2x5W Output at VDD = 12V (4Ω load)
  • THD+N = 0.06% at 1W, 8Ω
  • 95% Efficiency at 2.5W
  • Low Noise (190μV Typical)
  • Switching Frequency Up to 1MHz
  • 9.5V to 12V Single-Supply Operation
  • Integrated Startup and Shutdown Pop Elimination Circuit
  • Thermal and Short Circuit Protection
  • Integrated 250mΩ Switches
  • Mute/Standby Modes (Sleep)
  • Thermally Enhanced 20-Pin TSSOP Package with Exposed Pad


  • GradeCatalog
  • TypeStereo SE
  • PackageTSSOP20F
  • Isw Limit (A)4
  • Total Pout (max) (W)10
  • PSRR (dB)-60
  • THD+N (%) @1W0.06
  • Efficiency (%)95
  • Vin (max) (V)12
  • Vin (min) (V)9.5