Louder Audio AND More Board Space? You're Not Dreaming

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7-W Stereo Audio Amplifier in QFN Package:
Drive Louder, Clearer Audio in Ultrabooks and Bluetooth® Speakers
Chip

Texas Instruments
The TPA3131 is a 7-W stereo audio amplifier and the first Class-D amplifier with a package small enough and voltage rail low enough to fit into an ultrabook application. It drives more than 3X the power output of integrated amplifiers, allowing for louder, clearer audio than standard ultrabooks. It also features efficient Class-D technology, allowing for longer battery life. The TPA3131's efficient operation and ability to provide the most power output per square millimeter of board space make it a must have for ultrabooks, Bluetooth® speakers, convertible PCs and speaker amplifiers.
TPA3131 size comparison

Features and Benefits
7-W stereo output provides more than 3X the power output of integrated amplifiers
Small QFN package (5x5mm2) simplifies design layout and allows the most power output/ mm2 of board space
Less than 50µA quiescent power consumption allows for longer standby battery life
Wide 4.5V to 26V supply range for AC powered or 3S battery configured systems
Up to 92% efficient Class-D operation extends battery life
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