PAM8403 Mini 5V Digital Amplifier Board With Switch Potentiometer Expand

PAM8403 Mini 5V Digital Amplifier Board with Switch Potentiometer



PAM8403 5V Two-channel Stereo Mini Class-D 3W Audio Amplifier.

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The PAM8403 is a 3W+3W, class-D audio amplifier. It offers low THD+N, allowing it to achieve high-quality sound reproduction. The new
filterless architecture allows the device to drive the speaker directly, requiring no low-pass output filters, thus saving system cost and PCB area. With the same numbers of external components, the efficiency of the PAM8403 is much better than that of Class-AB cousins. It can extend the battery life, which makes it well-suited for portable applications.


  • Dual channel stereo, high output power (3 w + 3 w power @ 5V and 4 ohms load)
  • Good sound quality
  • Can use computer USB for power supply directly. Double panel wiring solves crosstalk
  • Super mini design allows it to be easily placed in a variety of digital products.
  • 3W Output at 10% THD with a 4ΩLoad and 5V Power Supply
  • Filterless, Low Quiescent Current and Low EMI
  • Low THD+N
  • Superior Low Noise
  • Efficiency up to 90%
  • Short Circuit Protection
  • Thermal Shutdown

Technical Specifications

  • Operating Voltages: 2.5V  to 5.5V
  • Features: Mini amplifier board with compact size, high output power and HD audio.
  • Amplifier IC: PAM8403
  • Load : Can direct drive 4 or 8 ohm small speakers
  • Dimensions: (3.5 cm x 3 cm x 1.5 cm)
  • Weight: (8 g)


  • Bluetooth Stereo Audio hands free / headsets
  • In robots that speak or generate sounds to indicate activities
  • Portable Speakers
  • LCD Monitors / TV Projectors
  • Arduino or Raspberry Pi Game Machines
  • Speaker Phones

Documents and Downloads

Package Includes

  • 1x Mini amplifier board


please make sure the power supply is not more than 5.5V and
please don't do reverse polarity for "+" and "-", or else, it will burn the board.

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