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Texas Instruments LM4864MM/NOPB — Analog & Data Acquisition

LM4864MM/NOPB Class AB Audio Amp, 675 mW mono, 8-VSSOP

MPNLM4864MM/NOPB
End of Life

Texas Instruments Boomer® series, LM4864MM/NOPB, Class AB audio amplifier IC, mono output, 675 mW into 8 Ω, 2.7 V to 5.5 V supply, shutdown and thermal protection, -40°C to 85°C, 8-VSSOP package.

$1.79Ref. price · indicative, final on quote
Texas Instruments LM4864MM/NOPB datasheet (PDF)
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
RoHSROHS3 Compliant
SeriesBoomer®
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LM4864MM/NOPB specifications
ParameterValue
TypeClass AB
SeriesBoomer®
Output type1-Channel (Mono)
MountingSurface Mount
Supply voltage2.7V ~ 5.5V
Max output power x channels @ load675mW x 1 @ 8Ohm
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesShutdown, Thermal Protection
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)

Product details

The Texas Instruments LM4864MM/NOPB is a Class AB audio power amplifier from the Boomer® series, delivering 675 mW into an 8 Ω load from a single mono channel.

The surface-mount profile suits automated pick-and-place.

Shutdown and thermal protection — why they matter

The shutdown pin lets a microcontroller or GPIO put the amplifier into a low-power idle state when no audio is needed — a common requirement in battery-operated terminals and portable instruments. Thermal protection prevents the output stage from destructing under a sustained fault or high ambient temperature; the part self-limits rather than failing open or shorted. For a BOM line, this means you can skip an external thermal switch in many designs.

Frequently asked questions

Does LM4864MM/NOPB have thermal protection and shutdown features?

Yes, it includes both shutdown (for low-power idle) and thermal protection (to prevent damage under fault or high ambient temperature).

What are the recommended alternatives or equivalents for LM4864MM/NOPB?

The closest pin-compatible alternative in the Boomer® family is the LM4864M/NOPB in an SOIC-8 package — same output power and supply range, different footprint. Verify the pad layout before substituting.