Texas Instruments Boomer® series, Class AB audio amplifier, 1-Channel (Mono) with Mono Headphones, 1W x 1 @ 8Ohm, 110mW x 1 @ 32Ohm, 8-SOIC package, -40°C to 85°C.
| Parameter | Value |
|---|---|
| Type | Class AB |
| Series | Boomer® |
| Output type | 1-Channel (Mono) with Mono Headphones |
| Mounting | Surface Mount |
| Supply voltage | 2.7V ~ 5.5V |
| Max output power x channels @ load | 1W x 1 @ 8Ohm; 110mW x 1 @ 32Ohm |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Features | Depop, Mute, Shutdown, Thermal Protection, Volume Control |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
The LM4875MX/NOPB: The 1W into 8Ω rating handles a small speaker for voice or alert tones; the 110mW into 32Ω covers consumer headphone levels.
The 8-SOIC package reflows onto standard FR4; keep the thermal pad (if present) soldered to a copper pour for heat spreading at 1W continuous output.
The LM4875MX/NOPB is the ROHS3-compliant, tape-and-reel variant of the LM4875M. Pinout and electrical specifications are identical, so it serves as a drop-in replacement in most designs. Verify the package marking and solder profile for the lead-free finish.
Typical applications include portable speakers, headphone amplifiers, voice annunciators, and battery-powered audio devices that need a mono output up to 1W into an 8Ω load.
Yes, thermal protection is one of the integrated features, along with depop, mute, shutdown, and volume control.