LM386MMX-1/NOPB

Audio Amplifiers Overview

The LM386MMX-1/NOPB is a low-voltage audio power amplifier manufactured by Texas Instruments, continuing the legacy of National Semiconductor. It operates within a Class-AB configuration and delivers an output power of 325 mW into a 4-ohm load. The device functions with a supply voltage range from 4 V to 12 V. Total Harmonic Distortion plus noise is specified at 0.2%. It utilizes a VSSOP-8 surface-mount package and supports operation temperatures between 0°C and +70°C.

Audio Amplifiers Feature Summary

• Designed for low-voltage audio power amplification applications
• Provides high gain without external components
• Operates in Class-AB topology for efficient signal reproduction

Audio Amplifiers Applications

• Low voltage portable audio equipment
• Battery-powered sound systems
• Small speaker driving circuits

Audio Amplifiers Procurement Notes

Verify the manufacturer designation as Texas Instruments on official documentation, as National Semiconductor operations were acquired. Confirm the specific suffix -1/NOPB matches the required RoHS compliance and pinout configuration for the VSSOP-8 package. Ensure the order quantity aligns with reel or cut tape availability standards for this specific part number.

Audio Amplifiers Selection Notes

Select this component when a compact surface-mount solution is required for low-power audio tasks. The VSSOP-8 package offers space efficiency compared to through-hole alternatives. Consider the 4V to 12V operating range to ensure compatibility with the target system's power supply rails and the 4-ohm load impedance requirement.

Audio Amplifiers Part Context

This component belongs to the LM386 series, originally introduced by National Semiconductor in 1975. It remains a widely used standard for simple audio amplification. The current production is managed by Texas Instruments following their acquisition of National Semiconductor's semiconductor business. The part retains the classic functionality while updating manufacturing processes.

Audio Amplifiers Replacement Considerations

LM386N-4/NOPB (PDIP-8 package)

Audio Amplifiers FAQ

What is the maximum supply voltage for the LM386MMX-1/NOPB?

The maximum supply voltage is 12 V.

Does this amplifier require external components for basic gain?

No, it provides a default gain of 20 dB without external components, though bypass capacitors may be needed for stability.