Industry's first 7W Class-D amplifier in QFN package

Offering up to 92-percent power-efficient Class-D operation, the TPA3131D2 amplifier uses less than 50-uA quiescent power consumption. This enables longer standby battery life compared to discrete amplifiers in larger TSSOP packages.

Offering size-defying sound, the TPA3131D2 features a 7-W stereo output. Providing more than three times the power output of 2-W HDA codecs, this enables louder, crisper sound from ultrabooks and Bluetooth speakers.

The TPA3131D2 Class-D stereo amplifier provides low power rail of 4.5 V (compared to 8 V for integrated amplifiers) and a supply range extended to 26 V to support both AC-powered and 2S battery-configured systems.

A complete audio solution, the TPA3131D2 combines with the TLV320AIC3254 stereo audio codec with miniDSP, and the TPA6132A2 stereo headphone amplifier to create a high-performance audio solution.

Ideally suited to ultrabook applications, the new Class-D amplifier comes in a 5-mm by 5-mm QFN package. Nearly half the size of discrete amplifiers in TSSOP packages, this simplifies board layout for designers and delivers the highest power output per square millimeter of board space.

An EVM, the TPA3131D2EV, is available now at a suggested retail price of $149 (USD). PSpice models are also available for verifying board signal integrity requirements. On the Audio Forum in the TI E2E Community, engineers can search for solutions, get help, share knowledge and solve problems with fellow engineers and TI experts.

Available today, the TPA3131D2 comes in a 32-pin QFN package for a suggested retail price of US$1.10 in 1,000-unit quantities.