MP9943A Datasheet (data sheet) PDF





MP9943A Datasheet, Synchronous Step-Down Converter

MP9943A   MP9943A  

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The Future of Analog IC Technology DESCR IPTION The MP9943A is a high-frequency, synchronous, rectified, step-down, swi tch-mode converter with built-in power MOSFETs. It offers a very compact solut ion to achieve a 3A peak output current with excellent load and line regulatio n over a wide input supply range. The M P9943A has synchronous mode operation f or higher efficiency over the output cu rrent load range. Current-mode operatio n provides fast transient response and eases loop stabilization. Full protecti on features include over-current protec tion and thermal shutdown. The MP9943A requires a minimal number of readily-av ailable standard external

MP9943A Datasheet, Synchronous Step-Down Converter

MP9943A   MP9943A  
components, and is available in a space -saving QFN-8 (3mmx3mm) package. MP994 3A High Efficiency 3A Peak, 36V, Synchr onous Step-Down Converter With Power Go od FEATURES  Wide 4V to 36V Continuo us Operating Input Range  85mΩ/55m Ω Low RDS(ON) Internal Power MOSFETs  High-Efficiency Synchronous Mode Op eration  410kHz Switching Frequency  Synchronizes from 200kHz to 2.2MHz External Clock  High Duty Cycle for Automotive Cold-crank  Force CCM Mod e  Power Good Indicator  Over Cur rent Protection and Hiccup  Thermal Shutdown  Output Adjustable from 0.8 V  Available in an QFN-8 (3mmx3mm) p ackage APPLICATIONS  General Consume r  Multi-Function Printers (MFP)  Distributed Power Systems All MPS part s are lead-free, halogen free, and adhe re to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “Th e Future of Analog IC Technology” are Registered Trademarks of Monolithic Po wer Systems, Inc. TYPICAL APPLICATION MP9943A Rev. 1.1 www.MonolithicPower. com 9/1/2017 MPS Proprietary Informat ion. Patent Protected. Unauthorized Pho tocopy and Duplication Prohibited. © 2017 MPS. All Rights Reserved. 1 MP99 43A – 36V, 3A PEAK SYNCHRONOUS STEP-D OWN CONVERTER ORDERING INFORMATION Part Number* MP9943AGQ Package QFN-8 (3mmx3mm) Top Markin








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