MP9943A Datasheet | Monolithic Power Systems

DESCRIPTION The MP9943A is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very pact solution to achieve a 3A peak output current with excellent load and line regulation over a wide input supply range. The MP9943A has synchronous mode operation for higher efficiency over the output current load range. Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection and thermal shutdown. The MP9943A requires a minimal number of readily-available standard external ponents, and is available in a space-saving QFN-8 (3mmx3mm) package. High Efficiency 3A Peak, 36V, Synchronous Step-Down Converter With Power Good FEATURES - Wide 4V to 36V Continuous Operating Input Range - 85mΩ/55mΩ Low RDS(ON) Internal Power MOSFETs - High-Efficiency Synchronous Mode Operation - 410k Hz Switching Frequency - Synchronizes from 200k Hz to 2.2MHz External Clock - High Duty Cycle for Automotive Cold-crank - Force CCM Mode - Power Good Indicator - Over Current Protection and Hiccup - Thermal Shutdown - Output Adjustable from 0.8V - Available in an QFN-8 (3mmx3mm) package APPLICATIONS - General Consumer - Multi-Function Printers (MFP) - Distributed Power Systems All MPS parts are lead-free, halogen free, and adhere to the Ro HS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION MP9943A Rev. 1.1 .Monolithic Power. 9/1/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. - 36V, 3A PEAK SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number- MP9943AGQ Package QFN-8 (3mmx3mm) Top Marking See Below - For Tape & Reel, add suffix - Z (e.g. MP9943AGQ-...