The MAX98309/MAX98310 mono 1.4W Class AB audio amplifiers offer low quiescent current while maintaining excellent SNR and low 0.008% THD+N. These ICs feature excellent 90dB PSRR and state of the art click-and-pop suppression. The ICs are offered with an internally fixed 0dB, 3dB, 6dB, and 9dB gain (MAX98310) or an externally set gain (MAX98309) through external resistors. The MAX98309 feature a 10ms or 100ms pin-selectable turn-on time, while the MAX98310 has a preset 5ms turn-on time. The MAX98309/MAX98310 are available in a (1.0mm x 1.0mm) 9-bump, 0.3mm pitch WLP, and are specified over the extended -40°C to +85°C temperature range. Applications * Cell Phones/Smartphones * Digital Cameras * e-Readers * GPS * Portable Media Players * Tablets * Enhances System Performance * Differential Input Improves Noise Immunity * Industry-Leading Click-and-Pop Suppression * High 90dB PSRR (fIN = 217Hz) * Smaller Solution Size * 1mm x 1mm WLP Footprint * Extends Battery Life * Low Quiescent Current * Delivers Robust System Design * Thermal Overload Protection * Short-Circuit Protection * 1.2mA Supply Current (VDD = 3.7V) * 750mW into 8Ω (VDD = 3.7V) * 2.5V to 5.5V Supply Operation * Pin-Selectable, Internally-Fixed Gain (MAX98310) * 1.8V Logic-Compatible Active-Low SHDN Input