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Texas Instruments LM386MMX-1/NOPB — Analog & Data Acquisition

LM386MMX-1/NOPB Class AB Audio Amp, 325 mW Mono, 8-VSSOP

MPNLM386MMX-1/NOPB
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Texas Instruments LM386MMX-1/NOPB, Class AB audio amplifier, 1-Channel (Mono), 325 mW output into 8 Ω, 4 V ~ 12 V supply, 8-VSSOP surface-mount package, 0°C ~ 70°C operating temperature.

$1.6500Ref. price · indicative, final on quote
Texas Instruments LM386MMX-1/NOPB datasheet (PDF)
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM386MMX-1/NOPB specifications
ParameterValue
TypeClass AB
Output type1-Channel (Mono)
MountingSurface Mount
Supply voltage4V ~ 12V
Max output power x channels @ load325mW x 1 @ 8Ohm
Operating temperature0°C~70°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)

Product details

The Texas Instruments LM386MMX-1/NOPB is a low-voltage audio power amplifier built around a Class AB output stage, delivering 325 mW continuous into an 8 Ω load from a single supply rail between 4 V and 12 V. The commercial temperature range (0°C to 70°C) keeps it inside conditioned indoor equipment — not for an automotive cabin or an outdoor enclosure without climate control.

The 325 mW rating into 8 Ω is the maximum continuous output before clipping at the rated supply.

Package and mounting — the -MMX suffix

This variant ships in the 8-VSSOP surface-mount package, supplied on Tape & Reel or Cut Tape.

Frequently asked questions

Is LM386MMX-1/NOPB the same as LM386N-1?

Both share the same LM386 base die and electrical ratings, but the LM386N-1 comes in a through-hole PDIP package, while the LM386MMX-1/NOPB is in an 8-VSSOP surface-mount package. They are not footprint-compatible without a board layout change.

Does LM386MMX-1/NOPB require a heatsink?

At 325 mW into 8 Ω at room temperature, the 8-VSSOP package dissipates the heat without an external heatsink. If the ambient temperature approaches 70°C or the amplifier runs continuously near full output, a small copper pad under the package on the PCB helps keep the junction temperature within limits.