Texas Instruments Boomer® series, Class D audio amplifier, 2-channel (stereo) with stereo headphones, 2.1W x 2 @ 4Ω, 4.5V-5.5V supply, -40°C to 85°C, 24-TSSOP package.
| Parameter | Value |
|---|---|
| Type | Class D |
| Series | Boomer® |
| Output type | 2-Channel (Stereo) with Stereo Headphones |
| Mounting | Surface Mount |
| Supply voltage | 4.5V ~ 5.5V |
| Max output power x channels @ load | 2.1W x 2 @ 4Ohm |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Bulk |
| Case | 24-TSSOP (0.173\", 4.40mm Width) |
The LM4663MTX is a Texas Instruments Boomer® series Class D audio amplifier with two output channels — one stereo speaker pair plus a separate stereo headphone path. Class D topology keeps quiescent losses low compared to a linear amp, which matters for battery-powered or thermally constrained enclosures.
Each speaker channel is rated for 2.1 W into a 4 Ω load.
Each speaker channel delivers 2.1 W into a 4 Ω load. The headphone output is a separate path and is not rated at the same power level.
Yes, but the output power will be lower than the 2.1 W into 4 Ω rating — expect roughly half the current at the same supply voltage, so about 1 W per channel into 8 Ω.
No, the part is marked RoHS non-compliant. The termination finish contains lead, so verify your assembly process and end-market requirements before specifying it.