15W Class-D Mono Single Ended Audio Amplifier



The MP7740 is a mono 15W Class-D Audio Amplifier. It is one of MPS' products of fully integrated audio amplifiers which dramatically reduces solution size by integrating the following: • 250mΩ power MOSFETs • Startup / Shutdown pop elimination • Short circuit protection circuits The MP7740 utilizes a single ended output structure capable of delivering 15W into 4Ω speakers. MPS Class D Audio Amplifiers exhibit the high fidelity of a Class A/B amplifier at high efficiencies. The circuit is based on the MPS? proprietary variable frequency topology that delivers excellent linearity, fast response time and operates on a single power supply.


  • 15W Output at VDD = 24V into a 4Ω load
  • THD+N = 0.05% at 1W, 8Ω
  • 90% Efficiency at 15W & VDD=24V
  • Low Noise (103μV Typical)
  • Switching Frequency Up to 1MHz
  • 9.5V to 36V Operation from a Single Supply
  • Integrated Startup and Shutdown Pop Elimination Circuit
  • Thermal and Short Circuit Protection
  • Integrated Power FETs
  • Pin Compatible with MP7720
  • Available in Tiny 8-Pin SOIC Package


  • GradeCatalog
  • TypeMono SE
  • Isw Limit (A)4.5
  • Total Pout (max) (W)15
  • PSRR (dB)-60
  • THD+N (%) @1W0.018
  • Efficiency (%)90
  • Vin (max) (V)36
  • Vin (min) (V)9.5