MP9942A Datasheet (data sheet) PDF





MP9942A Datasheet, Synchronous Step-Down Converter

MP9942A   MP9942A  

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The Future of Analog IC Technology DESCR IPTION The MP9942A 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 2A continuous output c urrent with excellent load and line reg ulation over a wide input supply range. The MP9942A has synchronous mode opera tion for higher efficiency over the out put current load range. Current-mode op eration provides fast transient respons e and eases loop stabilization. Full pr otection features include over-current protection and thermal shutdown. The MP 9942A requires a minimal number of read ily-available standard ex

MP9942A Datasheet, Synchronous Step-Down Converter

MP9942A   MP9942A  
ternal components, and is available in a space-saving 8-pin TSOT23 package. TYP ICAL APPLICATION MP9942A High Efficien cy 2A, 36V, 410kHz Synchronous Step-Dow n Converter with Power Good FEATURES Wide 4V to 30V Continuous Operating I nput Range  36V Input Transient Tole rance  90mΩ/55mΩ Low RDS(ON) Int ernal Power MOSFETs  High-Efficiency Synchronous Mode Operation  410kHz Switching Frequency  Synchronizes fr om 200kHz to 2.2MHz External Clock  High Duty Cycle for Automotive Cold-cra nk  Force CCM Mode  Internal Soft -Start  Power Good Indicator  Ove r-Current Protection with Hiccup  Th ermal Shutdown  Output Adjustable fr om 0.8V  Available in an 8-pin TSOT- 23 package APPLICATIONS  Automotive  Industrial Control System  Distr ibuted Power Systems All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green statu s, please visit MPS website under Quali ty Assurance. “MPS” and “The Futu re of Analog IC Technology” are Regis tered Trademarks of Monolithic Power Sy stems, Inc. VIN EN/SYNC C1 22 F C6 0. 1 F BST IN MP9942A EN/SYNC PG VCC GND SW FB R4 20 C4 100nF L1 10 H R9 R1 51k 41.2k C2 47 F 3.3V/2A VOUT R 2 13 k MP9942A Rev. 1.0 www.Monolithi cPower.com 10/14/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and








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