MP1497DJ-LF-Z

MP1497 High-Efficiency, 3A, 16V, 500kHz Synchronous, Step-Down Converter R EC R NE O EF W M ER D ME E N TO SI D ED G M N P2 S FO 33 R 3 The Future of Analog IC Technology DESCRIPTION FEATURES The MP1497 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 MP1497 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 MP1497 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 80mΩ/30mΩ Low RDS(ON) Internal Power MOSFETs Proprietary Switching-Loss–Reduction Technique High-Efficiency Synchronous Mode Operation Fixed 500kHz Switching Frequency Can Synchronize to a 200kHz-to-2MHz External Clock Externally-Programmable Soft-Start OCP and Hiccup Thermal Shutdown Output Adjustable from 0.8V Available in an 8-pin TSOT-23 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. N O T TYPICAL APPLICATION 2 VIN 4.5V-16V C1 BST IN C4 MP1497 22 6 EN/SYNC 5 SW 3 3.3V/3A L1 EN 7 FB C3 0.1 1 C5 22 MP1497 Rev. 1.06 9/7/2015 VCC SS GND 4 8 R3 33k R1 40.2k C2 R2 13k www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 1 MP1497 – SYNCHRONOUS, STEP-DOWN CONVERTER WITH INTERNAL MOSFETS ORDERING INFORMATION Package TSOT-23-8 Top Marking ACQ R EC R NE O EF W M ER D ME E N TO SI D ED G M N P2 S FO 33 R 3 Part Number* MP1497DJ For Tape & Reel, add suffix –Z (e.g. MP1497DJ–Z); For RoHS, compliant packaging, add suffix –LF (e.g. MP1497DJ–LF–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