MP2225GJ-Z

MP2225 High-Efficiency, 5A, 18V, 500kHz Synchronous, Step-Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP2225 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to achieve a 5A output current with excellent load and line regulation over a wide input supply range. The MP2225 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 shut down. The MP2225 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 47mΩ/18mΩ 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 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 IN C1 22 F BST C4 0.1 F MP2225 EN/SYNC EN/SYNC SW VCC C5 0.1 F AGND MP2225 Rev. 1.0 4/13/2015 VOUT 3.3V/5A L1 3.3 H C2 22 F×2 R1 40.2K FB GND R2 8.87K 100 95 90 85 80 75 70 65 60 55 50 45 40 0.01 0.1 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 1 10 1 MP2225 –18V/5A SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* MP2225GJ Package TSOT23-8 Top Marking See Below For Tape & Reel, add suffix –Z (e.g. MP2225GJ–Z); TOP MARKING AFR: product code of MP2225GJ; Y: year code; PACKAGE REFERENCE TOP VIEW MP2225 Rev. 1.0 4/13/2015 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 MP2225 –18V/5A SYNCHRONOUS STEP-DOWN CONVERTER ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance VIN …………………………….. ........-0.3V to 20V VSW…………………………….. ............................ -0.3V (-5V for