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Audio amplifier series

LPA2171

General Description
The LPA2171 is a 6W, class-F audio amplifier with a mode pin for switch the work mode. It offers low THD+N, allowing it to achieve high-quality Power Supply sound reproduction. The new filterless architecture allows the device to drive the speaker directly requiring no low-pass output filters, thus to save the system cost and PCB area. The LPA2171 is available in SOP-8.
    Features
    ?Shutdown current:<5uA
    ?480KHz fixed frequency switching for amplifier
    ?5.6W Output at 10% THD with a 2 Ω Load and 5V VDD for amplifier
    ?4.4W Output at 1% THD with a 2 Ω Load and 5V VDD for amplifier
    ?4.0W Output at 10% THD with a 4 Ω Load and 5.5V VDD for amplifier
    ?Filterless, Low Quiescent Current and Low EMI
    ?Amplifier Efficiency up to 85%
    ?Free LC filter digital modulation, direct-drive speakers
    ?Short Circuit Protection
    ?Thermal Shutdown
    ?Few External Components to Save the Space and cost
    ?Pb-Free Package
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