Texas Instruments TPA6101A2 50-mW Ultra Low-Voltage, Stereo Headphone Audio Amplifier with Fixed Gain (2dB) TPA6101A2ZQYRG1

The TPA6101A2 is a stereo audio power amplifier designed for low-voltage applications, capable of delivering 50 mW of continuous RMS power per channel into 16-ohm loads. It operates within a supply voltage range of 1.6 V to 3.6 V and features a fixed gain of 2 dB, which eliminates the need for external resistors, thus saving board space. The device is optimized for battery-powered applications due to its low supply current of 0.75 mA and a shutdown current of only 50 nA. The amplifier includes pop reduction circuitry and internal mid-rail generation, enhancing audio performance. It provides low total harmonic distortion plus noise (THD+N) of 0.08% at 40 mW output power into 16-ohm loads at 3.3 V, and less than 0.06% for 30 mW into 32-ohm loads. The TPA6101A2 is available in multiple surface-mount packages, including a 15-ball MicroStar Junior BGA package (ZQY), making it suitable for compact designs. Additionally, it features thermal and short-circuit protection, ensuring reliable operation in various conditions.