MP2228GJ-Z

MP2228 High-Efficiency, 2A, 16V, 800kHz Synchronous, Step-Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP2228 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 2A continuous output current with excellent load and line regulation over a wide input supply range. The MP2228 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 MP2228 requires a minimal number of readily-available standard external components, and is available in a space-saving 8-pin TSOT23 package. • • • • • • • • 6V-to-16V Operating Input Range 100mΩ/40mΩ Low RDS(ON) Internal Power MOSFETs High-Efficiency Synchronous Mode Operation Fixed 800kHz Switching Frequency External AAM pin for Power-Save Mode Programming External Soft-Start OCP Protection 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 Television 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 Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION VIN 6V - 16V R3 2 7 IN BST 5 20 MP2228 VCC SW R5 10k AAM 6 SS C3 22nF FB GND 4 3.3V/2A 3 R4 113k 1 100 95 8 90 85 R6 8.2k R1 40.2k 80 75 70 VIN=6V VIN=12V VIN=16V 65 R2 13k 60 55 50 0.01 0.10 1.00 10.00 OUTPUT CURRENT (A) MP2228 Rev. 1.1 8/20/2013 www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2013 MPS. All Rights Reserved. 1 MP2228 – SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* MP2228GJ Package TSOT-23-8 Top Marking AGB * For Tape & Reel, add suffix –Z (e.g. MP2228GJ–Z); PACKAGE REFERENCE AAM ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance VIN ..................................................-0.3V to 17V VSW ...................................................................... -0.3V (-5V for