Download LM4991 Datasheet PDF
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LM4991 Description

The LM4991 is a mono bridged audio power amplifier capable of delivering 3W of continuous average power into a 3Ω load with less than 10% THD when powered by a 5V power supply (see Note below). To conserve power in portable applications, the LM4991's micropower shutdown mode (ISD = 0.1µA, typ) is activated when VDD is applied to the SHUTDOWN pin. Boomer audio power amplifiers are designed specifically to provide...

LM4991 Key Features

  • 2 Available in Space-Saving WSON and SOIC Packages
  • Ultra Low Current Shutdown Mode
  • Can Drive Capacitive Loads up to 500pF
  • Improved Click and Pop Circuitry Reduces
  • 5.5V Operation
  • No Output Coupling Capacitors, Snubber Networks, Bootstrap Capacitors or GainSetting Resistors Required
  • Unity-Gain Stable