MP9943AGQ-Z Monolithic Power Systems

MP9943 High Efficiency 3A Peak, 36V, Synchronous Step Down Converter With Power Good The Future of Analog IC Technology DESCRIPTION FEATURES The MP9943 is a high-frequency, synchronous, Wide 4V to 36V Continuous Operating Input rectified, step-down, switch-mode converter Range with built-in power MOSFETs. It offers a very 85m/55m Low R Internal Power DS(ON) compact solution to achieve a 3A peak output MOSFETs current with excellent load and line regulation High-Efficiency Synchron de Operation ous Mo over a wide input supply range. The MP9943 410kHz Switching Frequency has synchronous mode operation for higher Synchronizes from 200kHz to 2.2MHz efficiency over the output current load range. External Clock High Duty Cycle for Automotive Cold-crank Current-mode operation provides fast transient Internal Power-Save Mode response and eases loop stabilization. Internal Soft-Start Full protection features include over-current Power Good Indicator protection and thermal shutdown. Over Current Protection and Hiccup The MP9943 requires a minimal number of Thermal Shutdown readily-available standard external components, Output Adjustable from 0.8V and is available in a space-saving QFN-8 Available in an QFN-8 (3mmx3mm) (3mmx3mm) package. package APPLICATIONS General Consumer Multi-Function Printers (MFP) Distributed Power Systems All MPS parts are lead-free and adhere to the RoHS 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 MP9943 Rev.1.1 www.MonolithicPower.com 1 7/4/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2017 MPS. All Rights Reserved. MP9943 36V, 3A PEAK SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marking MP9943GQ QFN-8 (3mm3mm) See Below * For Tape & Reel, add suffix Z (e.g. MP9943GQZ) TOP MARKING AMG: product code of MP9943GQ Y: year code LLL: lot number PACKAGE REFERENCE TOP VIEW 1 8 FB PG 2 7 VCC IN 3 EN/SYNC 6 SW BST45 GND QFN-8 (3mm3mm) MP9943 Rev.1.1 www.MonolithicPower.com 2 7/4/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2017 MPS. All Rights Reserved.