GENERAL DESCRIPTION
The IS31AP2005 is a high efficiency, 2.95W mono class-D audio power amplifier. A low noise, filter-less PWM architecture eliminates the output filter, reducing external component count, system cost, and simplifying design.
Operating in a single 5V supply, IS31AP2005 is capable of driving 4Ω speaker load at a continuous average output of 2.95W with 10% THD+N. The IS31AP2005 has high efficiency with speaker load compared to a typical class AB amplifier.

FEATURES
• 5V supply at THD = 10%
• -2.95W into 4Ω (Typ.)
• -1.70W into 8Ω (Typ.)
• Efficiency at 5V:
• -83% at 400mW with a 4Ω speaker
• -89% at 400mW with an 8Ω speaker
• Optimized PWM output stage eliminates LC
   output filter
• Fully differential design reduces RF rectification
   and eliminates bypass capacitor
• Integrated pop-and-click suppression circuitry
• 3mm × 3mm DFN-8 and MSOP-8 package
• RoHS compliant and 100% lead(Pb)-free

APPLICATIONS
• Wireless or cellular handsets and PDAs
• Portable DVD player
• Notebook PC
• Portable radio
• Educational toys
• USB speakers
• Portable gaming