The LM386 Low Power Audio Amplifier is a compact and efficient IC designed for amplifying low-level audio signals in battery-powered and portable applications. With a wide operating voltage range and minimal external components required, the LM386 is ideal for small speakers, intercoms, alarms, and DIY audio projects. The DIP-8 package makes it easy to use on breadboards and through-hole PCBs.

Key Features

• Wide Input Voltage Range
  Operates from low-voltage power supplies, making it suitable for battery operation.

• Low Power Consumption
  Optimized for portable and energy-efficient audio applications.

• Adjustable Voltage Gain
  Default gain of 20, adjustable up to 200 with external components.

• Minimal External Components Required
  Simplifies circuit design and reduces cost.

• DIP-8 Through-Hole Package
  Easy prototyping, soldering, and replacement.

Specifications

• IC Type: Low Power Audio Amplifier

• Model: LM386

• Package: DIP-8

• Supply Voltage: 4V – 12V (up to 18V for some variants)

• Output Power:

  • ~0.5 W into 8 Ω (at 9V supply)

• Voltage Gain:

  • 20 (default)

  • Up to 200 (with external capacitor)

• Input Impedance: 50 kΩ

• Output Load: 4 Ω – 32 Ω

• Total Harmonic Distortion (THD): 0.2% (typical)

• Operating Temperature Range: 0°C to +70°C

• Applications: Portable speakers, audio amplifiers, alarms, intercoms, toys, DIY audio projects