MP9447GL-Z Monolithic Power Systems

MP9447 High-Efficiency, Fast-Transient, 5A, 36V Synchronous, Step-Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP9447 is a fully-integrated, high- Wide 4.5V-to-36V Operating Input Range frequency, synchronous, rectified, step-down, Guaranteed 5A, Continuous Output Current switch-mode converter. It offers a very compact Internal 65m High-Side, 30m Low-Side solution to achieve a 5A, continuous-output Power MOSFETs current over a wide input-supply range with Proprietary Switching-Loss-Reduction excellent load and line regulation. It also Technology provides fast transient response and good 1.5% Reference Voltage stability for wide input-supply and load range. Programmable Soft-Start Time The MP9447 operates at high efficiency over a Low Drop-out Mode wide output current load range. 200kHz-to-650kHz Switching Frequency Full protection features include SCP, OCP, UVP, SCP, OCP, UVP, and Thermal Shutdown and thermal shutdown. Output Adjustable from 0.8V to 0.9V IN Available in a 34mm 25-pin QFN Package The MP9447 requires a minimal number of readily-available, standard, external components, APPLICATIONS and is available in a space-saving 3mm4mm, General Consumer 25-pin, QFN package. USB Power Supplies Cigarette Lighter Adapters Power Supply for Chargers 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 MP9447 Rev. 1.22 www.MonolithicPower.com 1 10/24/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved. MP9447HIGH-EFFICIENCY, FAST-TRANSIENT, SYNCHRONOUS, STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marking MP9447GL QFN-25 (3mm4mm) See Below * For Tape & Reel, add suffix Z (e.g. MP9447GLZ) TOP MARKING 9447: product code of MP9447GL MP: MPS prefix Y: year code W: week code: LLL: lot number PACKAGE REFERENCE TOP VIEW VCC IN SW SW 20 19 18 17 AGND PGND 1 16 21 IN FREQ PGND 2 15 24 SW FB PGND 3 14 22 IN SS 4 PGND 13 25 SW EN 5 PGND 12 23 IN NC PGND 6 11 78 910 BST IN SW SW EXPOSED PAD ON BACKSIDE QFN25 (34mm) MP9447 Rev. 1.22 www.MonolithicPower.com 2 10/24/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2018 MPS. All Rights Reserved.