NB671GQ-P Monolithic Power Systems

NB671 24V, High Current Synchronous Step-down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The NB671 is a fully integrated high frequency Wide 5V to 24V Operating Input Range synchronous rectified step-down switch mode 6A Continuous Output Current converter. It offers very compact solutions to 9A Peak Output Current achieve 6A continuous output current and 9A Low R (ON) Internal Power MOSFETs DS peak current over a wide input supply range Proprietary Switching Loss Reduction with excellent load and line regulation. The Technique NB671 operates at high efficiency over a wide 1% Reference Voltage output current load range. 1.7ms Internal Soft Start Constant-On-Time (COT) control mode Output Discharge provides fast transient response and eases loop 500kHZ Switching Frequency stabilization. OCP, OVP, UVP Protection and Thermal Shutdown Under voltage lockout is internally set as 4.6V, Latch off Reset via EN or Power Cycle. An open drain power good signal indicates the Output Adjustable from 0.604V to 5.5V output is within its nominal voltage range. APPLICATIONS Full protection features include OCP, OVP, and thermal shut down. Laptop Computer Tablet PC The converter requires minimum number of Networking Systems external components and is available in QFN16 (3mmx3mm) package. Personal Video Recorders Flat Panel Television and Monitors Distributed Power Systems All MPS parts are lead-free, halogen 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 3.3 V IN 220nF V OUT BST VIN 5V/6A 2uH SW 22uF 499k VOUT 150k NB671 EN 22uF3 FB GND 20.5k PG VCC AGND PGND 100k 1uF NB671 Rev. 1.03 www.MonolithicPower.com 1 2/16/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved. NB671, 24V, HIGH CURRENT SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marking NB671GQ QFN-16 (3mmx3mm) See Below * For Tape & Reel, add suffix Z (e.g. NB671GQZ) TOP MARKING AEA: product code of NB671GQ Y: year code LLL: lot number PACKAGE REFERENCE TOP VIEW NB671 Rev. 1.03 www.MonolithicPower.com 2 2/16/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved.