3 Watt Stereo Mini Class-D Audio Amplifier 5V, Standby-Mode

CAD 2.90

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SKU: 26148 Category: Sound - Music - Audio


The PAM8403 from Diodes Inc. is a 3W, Class-D Stereo Audio Amplifier. It offers low THD+N, allowing it to achieve high-quality sound reproduction. The new filter-less 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 amplifiers. It can extend the battery life, which makes it well-suited for portable applications.

This “red” version of the Amplifier module features an additional Enable Pin, and bigger capacitors for a more stable operation and better sound quality (compared to our “green” model). The Enable Pin “SW” sets the amplifier to standby-mode by connecting it to GND. In this mode, the amplifier draws less than 1A (2.5-5V).

  • 2 x 3.2 Watt max. Output at 10% THD into 4 load
  • Supply Voltage 2.5 – 5.5V
  • THD+N @ 5V, 1W (4) <0.15%
  • Quiescent Current 16mA (5V)
  • Switching Frequency 260kHz
  • Signal to Noise 80dB
  • Dynamic Range 90dB
  • Efficiency up to 90%
  • Short Circuit Protection
  • Thermal Shutdown
  • Standby-Mode <1A

Additional information

Weight 0.005 kg





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