آی سی LM386N-4 یک تقویت کننده توان صوتی ولتاژ پایین با گین ثابت 20 و 200 با تغذیه 22 ولت نوع dip می باشد.

The LM386 is a power amplifier designed for use in low voltage consumer applications. The gain is internally set to 20 to keep external part count low, but the addition of an external resistor and capacitor between pins 1 and 8 will increase the gain to any value up to 200. The inputs are ground referenced while the output is automatically biased to one half the supply voltages. The quiescent power drain is only 24 milli watts when operating from a 6 volt supply, making the LM386 ideal for battery operation.