MP4420H High Efficiency 2A, 36V, Synchronous Step-Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP4420H is a high-frequency, Wide 4V to 36V Continuous Operating Input synchronous, rectified, step-down, switch-mode Range converter with built-in power MOSFETs. It 90m /55m Low R Internal Power DS(ON) offers a very compact solution to achieve a 2A MOSFETs continuous output current with excellent load High-Efficiency Synchronous Mode and line regulation over a wide input supply Operation range. The MP4420H has synchronous mode Default 410kHz Switching Frequency operation for higher efficiency over the output Synchronizes to a 200kHz to 2.2MHz current load range. External Clock High Duty Cycle for Automotive Cold-crank Current-mode operation provides fast transient Power-Save Mode response and eases loop stabilization. Internal Soft-Start Full protection features include over-current Power Good protection and thermal shut down. OCP Protection and Hiccup The MP4420H requires a minimal number of Thermal Shutdown readily-available standard external components, Output Adjustable from 0.8V and is available in a space-saving TSOT23-8 Available in an 8-pin TSOT23-8 package package. APPLICATIONS Automotive Industrial Control System 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 MP4420H Rev. 1.0 www.MonolithicPower.com 1 8/5/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved. MP4420H 36V, 2A SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marking MP4420HGJ TSOT23-8 See Below * For Tape & Reel, add suffix Z (e.g. MP4420HGJZ) TOP MARKING ALM: product code of MP4420HGJ Y: year code PACKAGE REFERENCE TOP VIEW PG FB 1 8 IN VCC 2 7 SW EN/SYNC 3 6 GND BST 4 5 TSOT23-8 MP4420H Rev. 1.0 www.MonolithicPower.com 2 8/5/2014 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved.