Class D stereo amplifier with headphone drive
The Texas Instruments TAS5717PHPR is a Class D stereo audio amplifier delivering 10W per channel into 8Ω loads, with an additional stereo headphone output for direct drive. The 3V to 3.6V supply range suits it for portable and consumer audio gear running from a 3.3V rail — think soundbars, docking stations, active speakers, and TV audio boards where a single supply simplifies the power tree.
Output power and supply — what they mean for the BOM
At 10W per channel into 8Ω, this part covers the moderate-power audio tier — enough for a 2.0 desktop speaker or a stereo channel in a multi-amp soundbar, but not for a subwoofer or PA line. The 3.3V nominal supply means the power stage is already regulated down from a higher battery or brick; you are not adding a separate 12V or 5V audio rail. That keeps the inductor count and bulk capacitance lower than a higher-voltage Class D would demand.
Package and thermal path
The 48-HTQFP (7x7 mm) package includes an exposed thermal pad. The 0°C to 85°C operating range covers indoor consumer and commercial equipment.