1FEATURES
2• Does Not Require Output Coupling Capacitors,
Bootstrap Capacitors, Or Snubber Circuits
• 10-pin VSSOP and 8-pin SOIC Packages
• Unity-Gain Stable
• External Gain Set

APPLICATIONS
• Mobile Phones
• Portable Computers
• Desktop Computers
• Low-Voltage Audio Systems

KEY SPECIFICATIONS
• THD+N at 1kHz for 1W Continuous Average
Output Power into 8Ω 0.5% (max)
• Output Power At 1kHz Into 8Ω with 10%
THD+N 1.5 W (typ)
• Shutdown Current 0.01μA (typ)
• Supply Voltage Range 2.0V to 5.5 V

DESCRIPTION
The LM4876 is a single 5V supply bridge-connected
audio power amplifier capable of delivering 1.1W (typ)
of continuous average power to an 8Ω load with 0.5%
THD+N.
Like other audio amplifiers in the Boomer series, the
LM4876 is designed specifically to provide high
quality output power with a minimal amount of
external components. The LM4876 does not require
output coupling capacitors, bootstrap capacitors, or
snubber networks. It is perfectly suited for low-power
portable systems.
The LM4876 features an active low externally
controlled, micro-power shutdown mode. Additionally,
the LM4876 features an internal thermal shutdown
protection mechanism. For PCB space efficiency, the
LM4876 is available in VSSOP and SOIC surface
mount packages.
The unity-gain stable LM4876's closed loop gain is
set using external resistors.