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LM4674A
www.ti.com
SNAS366A – SEPTEMBER 2006 – REVISED MAY 2013
LM4674A
Filterless 2.5W Stereo Class D Audio Power Amplifier
Check for Samples: LM4674A
FEATURES
1
•2 Output Short Circuit Protection • Stereo Class D Operation • No Output Filter Required • Logic Selectable Gain • Independent Shutdown Control • Minimum External Components • Click and Pop Suppression • Micro-Power Shutdown • Available in Space-Saving 2mm x 2mm x
0.6mm DSBGA Package
APPLICATIONS
• Mobile Phones • PDAs • Laptops
KEY SPECIFICATIONS
• Efficiency at 3.6V, 100mW into 8Ω 80% (typ) • Efficiency at 3.6V, 500mW into 8Ω 85% (typ) • Efficiency at 5V, 1W into 8Ω 85% (typ) • Quiescent Power Supply Current at 3.6V
Supply 4mA • Power Output at VDD = 5V, RL = 4Ω, THD ≤ 10%
2.