The LPA4871 is an audio power amplifier designed for portable applications such as GPS trackers. The LPA4871 is capable of delivering 3W of continuous average power to a 4Ω load from a 5.2V power supply with less than 10% distortion (THD+N).The LPA4871 is designed specifically to provide high quality output audio power with a minimal number of external components. The LPA4871 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited where minimal board or solution size is a primary requirement. It features a low-power shutdown mode, which is achieved by driving the SHDN pin with logic high. Additionally, the LPA4871 features an internal thermal shutdown protection.The LPA4871 contains circuitry to prevent “pop and click” noise that would occur during turn-on and turn-off transitions. For maximum flexibility, the LPA4871 provides an externally controlled gain (with resistors), as well as an externally controlled turn-on and turn-off times (with the bypass capacitor). The LPA4871 is available in a SOP-8 package.