IS31AP4990D 1.2W AUDIO POWER AMPLIFIER WITH ACTIVE-LOW SHUTDOWN MODE June 2014 DESCRIPTION FEATURES The IS31AP4990D 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 shutdown mode (1 A) output power into an 8 load 5V. Near-zero pop & click Ultra-low distortion An externally-controlled shutdown mode reduces the supply current to less than 1 A. It also includes Unity gain stable internal thermal shutdown protection. UTQFN-9L (1.5mm 1.5mm) 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. C, 06/24/2014 IS31AP4990D Figure 2 Typical Application Circuit (Differential Input) Lumissil Microsystems www.lumissil.com 2 Rev. C, 06/24/2014