MP8709EN-LF-Z

MP1497S High-Efficiency, 3A, 16V, 500kHz Synchronous, Step-Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP1497S is a high-frequency, synchronous, rectified, step-down switch mode converter with built in internal power MOSFETs. It offers a very compact solution to achieve 3A continuous output current with excellent load and line regulation over a wide input supply range. The MP1497S has synchronous mode operation for higher efficiency over the output current load range.       Current-mode operation provides a fast transient response and eases loop stabilization.      Protective features include over-current protection, thermal shutdown, and external SS control. The MP1497S requires a minimal number of readily-available external components and is available in a space-saving 8-pin TSOT23 package. Wide 4.5V-to-16V Operating Input Range 120mΩ/50mΩ Low RDS(ON) Internal Power MOSFETs Proprietary Switching-Loss–Reduction Technique High-Efficiency Synchronous Mode Operation Fixed 500kHz Switching Frequency Can Synchronize to a 300kHz-to-2MHz External Clock Externally-Programmable Soft-Start OCP and Hiccup Thermal Shutdown Output Adjustable from 0.8V Available in an 8-pin TSOT23 Package APPLICATIONS     Notebook Systems and I/O Power Digital Set-Top Boxes Flat-Panel Televisions and Monitors Distributed Power Systems All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION VIN 4.5V-16V C1 IN BST MP1497S 22 EN/SYNC C4 3.3V/3A SW L1 EN VCC FB C6 0.1 SS GND R9 33k R1 40.2k C2 R2 13k C5 22nF MP1497S Rev. 1.01 www.MonolithicPower.com 9/7/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 1 MP1497S – SYNCHRONOUS, STEP-DOWN CONVERTER WITH INTERNAL MOSFETS ORDERING INFORMATION Part Number* MP1497SGJ Package TSOT23-8 Top Marking AJT * For Tape & Reel, add suffix –Z (e.g. MP1497SGJ–Z). .PACKAGE REFERENCE TOP VIEW SS 1 8 FB IN 2 7 VCC SW 3 6 EN/SYNC GND 4 5 BST ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance VIN ..................................................-0.3V to 17V VSW ...-0.3V (-5V for