MP2224GJ-Z

MP2224 High-Efficiency, 4A, 18V, 500kHz Synchronous Step-Down Converter DESCRIPTION FEATURES The MP2224 is a high-efficiency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to achieve a 4A output current with excellent load and line regulation over a wide input supply range. The MP2224 has synchronous mode operation for higher efficiency over the output current load range.    Current-mode operation provides fast transient response and eases loop stabilization.   Full protection features include over-current protection and thermal shutdown.    The MP2224 requires a minimal number of readily available, standard, external components and is available in a space-saving 8-pin TSOT23 package. Wide 4.5V to 18V Operating Input Range Adjustable Output Voltage as low as 0.6V Low 70mΩ/25mΩ RDS(ON) of Internal Power MOSFETs High Efficiency up to 97% Fixed 500kHz Switching Frequency Synchronizes from a 200kHz to 2MHz External Clock 2.4ms Internal Soft-Start Time 1% Reference Accuracy at Room Temperature Internal Power-Save Mode OCP with Hiccup Mode Available in 8-pin TSOT23    APPLICATIONS     Flat-Panel Television and Monitors Notebook Systems and I/O Power Digital Set-Top Boxes Distributed Power Systems All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power S ystems, Inc. TYPICAL APPLICATION VIN IN C1 22μF BST C4 0.1μF MP2224 EN/SYNC EN/SYNC SW VCC C5 0.1μF L1 3.3μH C2 22μF×2 R1 40.2K FB AGND GND MP2224 Rev. 1.0 12/18/2015 VOUT 3.3V/4A R2 8.87K www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 1 MP2224 –18V/4A SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* MP2224GJ Package TSOT23-8 Top Marking See Below For Tape & Reel, add suffix –Z (e.g. MP2224GJ–Z) TOP MARKING AUL: Product code of MP2224GJ Y: Year code PACKAGE REFERENCE TOP VIEW MP2224 Rev. 1.0 12/18/2015 AGND 1 8 FB IN 2 7 VCC SW 3 6 EN/SYNC GND 4 5 BST www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 2 MP2224 –18V/4A SYNCHRONOUS STEP-DOWN CONVERTER ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance VIN …………………………….. ........ -0.3V to 20V VSW…………………………….............................. -0.3V (-5V for