2.4W Audio Power Amplifier with Shutdown Mode,SGM4871 Replace LM4991.
FEATURES

 Output Power at THD+N = 10%, 

  1kHzSGM4871YPS8: 2.4W (TYP) into 4Ω 

  LoadSGM4871YS8: 1.5W (TYP) into 8Ω Load

 Unity Gain Stable

 2.5V to 5.5V Operation

 Shutdown Current: 0.07μA (TYP)

 Thermal Overload Protection Circuitry

• No Output Coupling Capacitors, 

  BootstrapCapacitors or Snubber

  Networks Required

 External Gain Configuration Capability

 -40℃ to +85℃ Operating 

  Temperature Range

 Available in Green SOIC-8

  (Exposed Pad) andSOIC-8 Packages

PIN CONFIGUTION
优势替代
LM4991 LM4991.pdf

No.12289

FEATURES

• 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

   Noises During Turn-On and Turn-Off Transitions

• 2.2 - 5.5V Operation

• No Output Coupling Capacitors, Snubber

  Networks, Bootstrap Capacitors or 

  Gain-Setting Resistors Required

• Unity-Gain Stable






PIN CONFIGUTION
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