Skip to main content
Texas Instruments LM831MX — Analog & Data Acquisition

LM831MX Class AB Audio Amplifier, 440mW x 2 @ 8Ω, 16-SOIC

MPNLM831MX
End of Life

Texas Instruments LM831MX, Class AB stereo audio amplifier, 2-channel with stereo headphones output, 440mW x 2 @ 8Ω, 7.5V supply, -40 to 85°C, 16-SOIC (0.295", 7.50mm width), surface mount, Bulk package.

$1.13Ref. price · indicative, final on quote
Packaging16-SOIC (0.295", 7.50mm Width)
RoHSNot applicable
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM831MX specifications
ParameterValue
TypeClass AB
Output type2-Channel (Stereo) with Stereo Headphones
MountingSurface Mount
Supply voltage7.5V
Max output power x channels @ load440mW x 2 @ 8Ohm
Operating temperature-40°C ~ 85°C (TA)
PackageBulk
Case16-SOIC (0.295\", 7.50mm Width)

Product details

The LM831MX is a Class AB stereo audio amplifier from Texas Instruments, delivering 440 mW per channel into 8-ohm loads from a 7.5 V supply. It includes a stereo headphone output path and comes in a 16-SOIC package (7.50 mm width).

Output power and load matching

Rated at 440 mW per channel into 8-ohm loads. The 7.5 V supply rail is fixed.

The Bulk package means loose tubes or trays.

Listed as Active.

Frequently asked questions

What is the output power of LM831MX per channel?

440 mW per channel into 8-ohm loads, as listed in the specifications.