APA2037

APA2037 3W Stereo Fully Differential Audio Power Amplifier Features Operating Voltage: 2.4V~5.5V Fully Differential Class-AB Amplifier High PSRR and Excellent RF Rectification Immunity Low Crosstalk 3W Per Channel Output Power into 3Ω Load at V =5V DD Thermal and Over-Current Protections Built-In Feedback Resistors Eliminate External Components Counts Space Saving Package – TQFN5x5-20A Lead Free and Green Devices Available (RoHS Compliant) Applications LCD TVs Notebook, PCs Portable Devices General Description The APA2037 is a stereo, fully differential Class-AB audio amplifier which can operate with supply voltage from 2.4V to 5V and is available in a TQFN5x5-20A package. The built-in feedback resistors can minimize the external component counts and save the PCB space. High PSRR and fully differential architecture increase immunity to noise and RF rectification. In addition to these features, a short start-up time and small package size make the APA2037 is an ideal choice for LCD TVs and notebook PCs and Portable devices. The APA2037 also integrates the de-pop circuitry that reduces the pops and click noises during power on/off and shutdown mode operation. Both Thermal and over-current protections are integrated to avoid the IC being destroyed by over temperature and short-circuit. The APA2037 is capable of driving 3W at 5V into 3Ω speaker. Pin Configuration 15 RBYPASS 14 RSD 13 LINN 12 LINP 11 LBYPASS Simplified Application Circuit Left Channel...