MP1720DH Datasheet | Monolithic Power Systems

DESCRIPTION The MP1720 is a high efficiency Class-D audio amplifier. It utilizes a full bridge output structure capable of delivering 2.7W into 4Ω speaker. This device exhibits the high fidelity of a class AB amplifier with an efficiency of 90% which dramatically reduces solution size by integrating the following: - 250mΩ power MOSFETs (VIN =3.3V) - Startup / Shutdown pop elimination - Short circuit /Thermal overload Protection The MP1720 Features a pin-selectable 1MHz or 1.3MHz frequency control or can be synchronized to an external clock source. The flexible switching frequency and internal EMIreduction scheme eliminates the need for an output LC filter and passes emission standards without filter & with considerable cable. The MP1720 has five fixed gain options. MP1720-3: 3d B; MP1720-6: 6d B; MP1720-9: 9d B; MP1720-12: 12d B; MP1720-216: 21.6d B. The MP1720 is available in 10-pin MSOP-EP and 10-pin QFN packages. Features - Passes FCC-Radiated Emissions Standards with 24inch of Cable without output filter - 2.7W Into 4Ω with 5V VIN @ 10% THD+N - Up to 90% Efficiency - Flexible Switching Frequency setting - Low Noise (53μV Typical) with 3.3V VIN - 15ms Start-up time Eliminates pop - Low Quiescent Current (4m A @3.3V) - Low Shutdown Current (0.1μA) - Full Bridge Output Drive - Fully Differential Input - Short circuit Protection - Thermal Shutdown APPLICATIONS - Cellular Phones - PDAs - MP3 Players - Portable Audio All MPS parts are lead-free and adhere to the Ro HS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION MP1720 Rev. 1.02 Monolithic...