The PAM8905 is a high efficiency Class-D audio power amplifier with an integrated boost converter. It drives up to 1.9W （1% THD+N） into an 8Ω speaker. With 85% typical efficiency， the PAM8905 helps extend battery life when playing audio.

　　The built-in boost converter generates the voltage rail for the output stage. This provides a louder audio output than a stand-alone amplifier connected directly to the battery. It also maintains a consistent loudness， regardless of battery voltage.

　　The PAM8905 features battery tracking AGC function which adjusts the Class-D gain to limit battery current at lower battery voltage.

　　PAM8905 features DC input protection and all outputs are fully protected against output-to-output shorts. The PAM8905 is available in U-WLB1520-12 package.