MP9943 Datasheet (data sheet) PDF





MP9943 Datasheet, Synchronous Step Down Converter

MP9943   MP9943  

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The Future of Analog IC Technology DESCR IPTION The MP9943 is a high-frequency, synchronous, rectified, step-down, swit ch-mode converter with built-in power M OSFETs. It offers a very compact soluti on to achieve a 3A peak output current with excellent load and line regulation over a wide input supply range. The MP 9943 has synchronous mode operation for higher efficiency over the output curr ent load range. Current-mode operation provides fast transient response and ea ses loop stabilization. Full protection features include over-current protecti on and thermal shutdown. The MP9943 req uires a minimal number of readily-avail able standard external co

MP9943 Datasheet, Synchronous Step Down Converter

MP9943   MP9943  
mponents, and is available in a space-sa ving QFN-8 (3mmx3mm) package. TYPICAL A PPLICATION MP9943 High Efficiency 3A P eak, 36V, Synchronous Step Down Convert er With Power Good FEATURES  Wide 4V to 36V Continuous Operating Input Rang e  85mΩ/55mΩ Low RDS(ON) Interna l Power MOSFETs  High-Efficiency Syn chronous Mode Operation  410kHz Swit ching Frequency  Synchronizes from 2 00kHz to 2.2MHz External Clock  High Duty Cycle for Automotive Cold-crank Internal Power-Save Mode  Interna l Soft-Start  Power Good Indicator Over Current Protection and Hiccup Thermal Shutdown  Output Adjustab le from 0.8V  Available in an QFN-8 (3mmx3mm) package APPLICATIONS  Gene ral Consumer  Multi-Function Printer s (MFP)  Distributed Power Systems A ll MPS parts are lead-free and adhere t o the RoHS directive. For MPS green sta tus, please visit MPS website under Qua lity Assurance. “MPS” and “The Fu ture of Analog IC Technology” are Reg istered Trademarks of Monolithic Power Systems, Inc. MP9943 Rev.1.1 7/4/2017 www.MonolithicPower.com MPS Proprietar y Information. Patent Protected. Unauth orized Photocopy and Duplication Prohib ited. © 2017 MPS. All Rights Reserved. 1 MP9943 – 36V, 3A PEAK SYNCHRONOU S STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* MP9943GQ Package QFN-8 (3mmх3mm) Top M








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