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Diodes Incorporated 集成电路（IC） PAM8905PZR
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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.
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