MP2562DS-LF-Z

MP2562 1A, 4MHz, 50V Step-Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP2562 is a high frequency step-down switching regulator with an integrated internal high-side high voltage power MOSFET. It provides 1A output with current mode control for fast loop response and easy compensation.     The wide 4.5V to 50V input range accommodates a variety of step-down applications, including those in an automotive input environment. A 12µA shutdown mode quiescent current allows use in battery-powered applications.       High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light load condition to reduce the switching and gate driving losses. 120μA Quiescent Current(12uA Shutdown) Wide 4.5V to 50V Operating Input Range 460mΩ Internal Power MOSFET Up to 4MHz Programmable Switching Frequency Stable with Ceramic Capacitor Internal Soft-Start Internally Set Current Limit without external Current Sensing Resistor Up to 95% Efficiency Output Adjustable from 0.8V to 47V Available in 3x3 QFN10 and SOIC8 Packages APPLICATIONS The frequency foldback helps prevent inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation.      By switching at 4MHz, the MP2562 is able to prevent EMI (Electromagnetic Interference) noise problems, such as those found in AM radio and ADSL applications. High Voltage Power Conversion Automotive Systems Industrial Power Systems Distributed Power Systems Battery Powered Systems “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. The MP2562 is available in small 3mm x 3mm QFN10 and SOIC8 packages. TYPICAL APPLICATION C4 100nF 90 10 8,9 C1 100V VIN BST SW 1,2 C2 D1 R5 3 EN EN MP2562 R6 7 6 6.3V 5 R2 COMP FREQ GND R4 FB 4 C3 220pF R3 R1 VOUT 3.3V VIN=8V 80 EFFICIENCY (%) VIN L1 70 VIN=24V VIN=50V 60 50 VIN=12V 40 10 VIN=36V 100 1000 OUTPUT CURRENT (mA) MP2562 Rev. 1.0 2/28/2014 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2014 MPS. All Rights Reserved. 1 MP2562 – 1A, 4MHz, 50V STEP-DOWN CONVERTER ORDERING INFORMATION Part Number Package Top Marking Free Air Temperature (TA) MP2562DQ* 3x3 QFN10 9F –40C to +85C MP2562DS** SOIC8 MP2562DS –40C to +85C * For Tape & Reel, add suffix –Z (e.g. MP2562DQ–Z) . For RoHS Compliant Packaging, add suffix –LF (e.g. MP2562DQ–LF–Z) ** For Tape & Reel, add suffix –Z (e.g. MP2562DS–Z) . For RoHS Compliant Packaging, add suffix –LF (e.g. MP2562DS–LF–Z) PACKAGE REFERENCE TOP VIEW SW 1 10 BST SW 2 9 VIN EN 3 8 VIN COMP 4 7 FREQ FB 5 6 GND TOP VIEW EXPOSED PAD ON BACKSIDE CONNECT TO GND QFN10 Supply Voltage (VIN).....................–0.3V to +55V Switch Voltage (VSW)........................................... ................-0.3V (-5V for