LM4889
www.ti.com SNAS157H – APRIL 2002 – REVISED MAY 2013 LM4889 1 Watt Audio Power Amplifier
Check for Samples: LM4889 FEATURES DESCRIPTION The LM4889 is an audio power amplifier primarily
designed for demanding applications in mobile
phones and other portable communication device
applications. It is capable of delivering 1 watt of
continuous average power to an 8Ω BTL load with
less than 2% distortion (THD+N) from a 5VDC power
supply. 1 23 Available in Space-Saving VSSOP, SOIC,
WSON, and DSBGA Packages
Ultra Low Current Shutdown Mode (3.3 to 2.6V
-0.01ВµA)
Can Drive Capacitive Loads up to 500 pF
Improved Pop & Click Circuitry Eliminates
Noises During Turn-On and Turn-Off
Transitions
2.2 -5.5V Operation
No Output Coupling Capacitors, Snubber
Networks or Bootstrap Capacitors Required
Unity-Gain Stable
External Gain Configuration Capability APPLICATIONS Mobile Phones
PDAs
Portable Electronic Devices KEY SPECIFICATIONS Improved PSRR at 217Hz, 5 -3.3V 75dB …
