This audio power amplifier is very good for your portable devices, or for your headphones amplifier. The circuit of this audio power amplifier is very simple, consist of only seven components. Here is the schematic diagram of the amplifier circuit:
Low harmonic distortion give you a hi-fi power amplifier, but in a very small wattage. Depending on the LM386 variants, you can get between 0.625 Watt to 1 Watt power using this integrated chip (IC). Consult the datasheet for the complete specification (including the available Watttage and the associated extension code for the component).