Part Number: LM386N-4/NOPB

Manufacturer: Texas Instruments


Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of LM386N-4/NOPB

Datasheet  LM386N-4/NOPB datasheet
Category Integrated Circuits (ICs)
Family Linear – Amplifiers – Audio
Manufacturer Texas Instruments
Packaging Tube
Part Status Active
Type Class AB
Output Type 1-Channel (Mono)
Max Output Power x Channels @ Load 1W x 1 @ 32 Ohm
Voltage – Supply 5 V ~ 18 V
Mounting Type Through Hole
Operating Temperature 0°C ~ 70°C (TA)
Supplier Device Package 8-PDIP
Package / Case 8-DIP (0.300″, 7.62mm)

LM386N-4/NOPB Introduction

Want a battery-powered, compact, low-power amplifier that runs on relatively few external parts? In such a case, the LM386N-4/NOPB is your best bet. With its high power, low quiescent current drain, and voltage gain range of 20–200, this amplifier can be used in many audio systems. Its ground-referenced input does away with the need for a coupling capacitor, and its quiescent voltage centers itself to reduce distortion and guarantee true-to-life sound. The LM386N-4/NOPB has a distortion rate of only 0.2%, making it ideal for AM/FM radio amplifiers, intercoms, TV sound systems, portable tape player amplifiers, and more. Therefore, the LM386N-4/NOPB is an excellent choice for power converters, tiny servo drivers, and line drivers.

LM386N-4/NOPB Description

Both the LM386M-1 and the LM386MX-1 are examples of power amplifiers that were developed specifically for use in low-voltage consumer applications. Internally, the gain is fixed at 20, which helps keep the total number of external components minimum. However, by connecting an external resistor and capacitor between pins 1 and 8, the gain may be increased to any value between 20 and 200. While the inputs are referenced to ground, the output is automatically biased to a voltage that is equal to one-half of the supply voltage. The quiescent power consumption of only 24 mW while operated from a 6-V supply makes the LM386M-1 and LM386MX-1 perfect for battery operation.

LM386N-4/NOPB Features

The LM386N-4/NOPB is an adaptable audio amplifier that features a low-power output and is developed specifically for applications powered by a battery. It requires only a minimal amount of external components, making it simple to implement in various sound processing tasks. The LM386N-4/NOPB includes the following as some of its primary distinguishing characteristics:

  • Battery Operation Because the LM386N-4/NOPB was developed to work when powered by batteries, it is an excellent option for use in applications involving portable audio.
  • Minimum Number of External Components: The LM386N-4/NOPB requires only a minimal number of external components, which makes it simple to implement in a wide range of settings and uses. This not only helps to lower the size of the overall design but also helps to bring down the cost.
  • Wide Supply Voltage Range The LM386N-4/NOPB can function well on a broad spectrum of supply voltages, ranging from 4 volts to 12 volts or from 5 volts to 18 volts. Because of this, it may be powered by various sources, including batteries and a DC power supply, without affecting its functionality.
  • Low Quiescent Current Drain: The LM386N-4/NOPB features a low quiescent current drain of about 4 mA, which helps to extend the battery life in portable applications.
  • Voltage Gains Ranging from 20 to 200 Because the LM386N-4/NOPB is capable of providing voltage gains ranging from 20 to 200, it is versatile enough to be utilized with a wide variety of audio sources and loads.
  • Input That Is Referenced to the Ground: The LM386N-4/NOPB has an input referenced to the ground, simplifying input coupling and eliminating the requirement for a coupling capacitor.
  • The Output That Is Centered Within Myself Voltage at Rest the LM386N-4/NOPB includes a self-centering output quiescent voltage, which helps to decrease distortion and improves the overall audio performance.
  • Low Distortion: The LM386N-4/NOPB has a low distortion of 0.2% (AV = 20, VS = 6 V, RL = 8, PO = 125 mW, f = 1 kHz), which helps to provide precise and clean audio reproduction.
  • The following products are available in an 8-Pin MSOP Package: Because it comes in an 8-pin MSOP format, the LM386N-4/NOPB may be easily included in various audio systems. This makes it one of our most popular products. The compact nature of the packaging contributes to the overall reduction in size and the expense associated with the design.

Detailed Description

The LM386 is a mono low-voltage amplifier useful for many applications due to its versatility. It has the ability to move loads with a diameter ranging from 4 to 32 millimeters. Although factory defaulted to 20, the gain can be adjusted to any value between 20 and 200 by connecting a resistor and a capacitor between pins 1 and 8. This component can be purchased in three distinct 8-pin packages, including PDIP, SOIC, and VSSOP, so that it can be used in a variety of various contexts.

LM386N-4/NOPB Feature Description

The Different Operational Settings of the Device Due to the fact that this component is an operational amplifier (Op Amp), it may be configured in various ways to fulfill the needs of various applications. Because it has an internal gain-adjusting resistor, the LM386 can be utilized in a system with an extremely low total number of components. In addition, the gain and frequency response can be modified for particular applications by inserting a series resistor between pins 1 and 5. This can be done by placing the resistor in parallel with pins 1 and 5.

Advisory Suggestions Regarding the Power Supply

The LM386 has an operating voltage range of up to 12 V or 18 V, depending on the specifications. The voltage coming from the power source needs to be well-regulated, and it needs to fall within the range of values that have been established. It is strongly suggested that a capacitor be connected to GND in close proximity to the power supply pin on the LM386.


In conclusion, The LM386N-4/NOPB is a battery-operated audio amplifier that is both flexible and low-power. It was created with the application of several power sources in mind. It has a wide supply voltage range, a low quiescent current drain, and a small number of external components, which makes it a good choice for portable audio devices such as AM/FM radio amplifiers, portable tape player amplifiers, intercoms, TV sound systems.

This amplifier has a self-centering output quiescent voltage, low distortion, and voltage gains ranging from 20 to 200, so you can be sure that its audio reproduction will be accurate and clear. The LM386N-4/NOPB is simple to include in many different audio designs thanks to its availability in an MSOP package with 8 pins.

Regarding audio applications powered by a battery, the LM386N-4/NOPB provides a fantastic balance of performance and simplicity of operation. Contact ICRFQ today to get this best product at an affordable price.

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