MAX98500

www.DataSheet4U.com 19-5189; Rev 0; 5/10 Boosted 2.2W Class D Amplifier with Automatic Level Control General Description The MAX98500 is a high-efficiency, Class D audio amplifier that features an integrated boost converter to deliver a constant output power over a wide range of battery supply voltages. The boost converter operates at 2MHz, requiring only a small (2.2FH) external inductor and capacitor. The automatic level control has a battery tracking function that reduces the output swing as the supply voltage drops, preventing collapse of battery voltage. The amplifier has differential inputs and an internal fully differential design. The MAX98500 also features three gain settings (6dB, 15.5dB, and 20dB) that are selectable with a logic input. The MAX98500 is available in a small, 0.5mm pitch 16-bump WLP package (2.1mm x 2.1mm). It is specified over the extended -40NC to +85NC temperature range. S Boosted Class D Output S Integrated Automatic Level Control S Output Power 2.2W into 8I, 10% THD+N 1.7W into 8I, 1% THD+N S Wide 2.5V to 5.5V Supply Voltage Range S Undervoltage Lockout Protection S High Total Efficiency of 87% S High Step-Up Switching Frequency (2MHz) S Active Emission Limiting for Low EMI Features MAX98500 Applications Cell Phones Smartphones GPS Devices Mobile Internet Devices Active Speaker Accessories PART Ordering Information TEMP RANGE PIN-PACKAGE MAX98500EWE+ 16 WLP -40NC to +85NC +Denotes a lead(Pb)-free/RoHS-compliant package. Typical App...