DirectPath Class AB stereo driver — what it delivers
The TPA6139A2PW is a Texas Instruments DirectPath Class AB stereo headphone amplifier in a 14-TSSOP package. It delivers 25 mW per channel into a 32 Ω load from a 3 V to 3.6 V supply, covering the output needed for portable audio, set-top boxes, and line-out stages. The DirectPath architecture eliminates the output DC-blocking capacitors, saving board space and BOM cost — the amplifier drives the headphone directly without pop artifacts at power-up or shutdown.
Package and footprint
14-TSSOP (4.40 mm width) is a common footprint shared with many audio codecs and op-amps. The surface-mount body sits low, which helps in thin-profile products.
