IS31AP4991-GRLS2-TR ISSI

IS31AP4991 1.2W AUDIO POWER AMPLIFIER WITH ACTIVE-LOW STANDBY MODE October 2012 GENERAL DESCRIPTION FEATURES The IS31AP4991 has been designed for demanding Operating from V = 2.7V ~ 5.5V CC audio applications such as mobile phones and permits 1.2W output power V = 5V, THD+N= 1%, CC the reduction of the number of external components. f = 1kHz, with 8 load It is capable of delivering 1.2W of continuous RMS Ultra-low consumption in standby mode (much output power into an 8 load 5V. less than 1 A) 65dB PSRR 217Hz in grounded mode An externally-controlled standby mode reduces the Near-zero click-and-pop supply current to much less than 1 A. It also includes Ultra-low distortion (0.025% 0.5W, 1kHz) internal thermal shutdown protection. SOP-8 and MSOP-8 package The unity-gain stable amplifier can be configured by external gain setting resistors. APPLICATIONS Mobile phones PDAs Portable electronic devices Notebook computer TYPICAL APPLICATION CIRCUIT Figure 1 Typical Application Circuit (Single-ended input) Lumissil Microsystems www.lumissil.com 1 Rev. B, 10/18/2012 IS31AP4991 Figure 2 Typical Application Circuit (Differential input) Lumissil Microsystems www.lumissil.com 2 Rev. B, 10/18/2012