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Features
Internal pulldown resistor on shutdown.
micro SMD package (see App. note AN-1112)
5V - 2V operation
No output coupling capacitors or bootstrap capacitors.
Unity-gain stable
External gain configuration capability
Description The LM4878 is a bridge-connected audio power amplifier capable of delivering 1 W of continuous average power to an 8Ω load
with less than .2% (THD) from a 5V power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external
components. Since the LM4878 does not require output coupling capacitors or bootstrap capacitors. It is optimally suited for
low-power portable applications.
The LM4878 features an externally controlled, low-power consumption shutdown mode, as well as an internal thermal shutdown
protection mechanism.
The unity-gain stable LM4878 can be configured by external gain-setting resistors.
Key Specification
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Power Output at 0.2% THD
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1 W (typ)
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Shutdown Current
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0.01 µA (typ)
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Applications
Cellular Phones
Portable Computers
Low Voltage Audio Systems
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