The LM386N-3/NOPB is an audio amplifier power amplifier manufactured by Texas Instruments. It is designed to amplify audio signals from microphones, radios, and other audio sources. It is capable of delivering up to 1 watt of output power into an 8 ohm load. It has an adjustable gain of 20 to 200 with a fixed gain of 50 at the midpoint. It has output transistor protection against over-voltage, over-temperature, and short-circuit conditions. It operates from a single-ended supply voltage of 4 to 12 volts with an adjustable gain control from 20 to 200. It comes in a low voltage, 8-lead plastic mini-DIP package that has two 5-pin headers.