MP2562DQ-LF-P

MP2562 1A, 4MHz, 50V Step-Down Converter The Future of Analog IC Technology DESCRIPTION FEATURES The MP2562 is a high frequency step-down 120 A Quiescent Current(12uA Shutdown) switching regulator with an integrated internal Wide 4.5V to 50V Operating Input Range high-side high voltage power MOSFET. It 460m Internal Power MOSFET provides 1A output with current mode control for Up to 4MHz Programmable Switching fast loop response and easy compensation. Frequency Stable with Ceramic Capacitor The wide 4.5V to 50V input range accommodates Internal Soft-Start a variety of step-down applications, including Internally Set Current Limit without external those in an automotive input environment. A 12A Current Sensing Resistor shutdown mode quiescent current allows use in battery-powered applications. Up to 95% Efficiency Output Adjustable from 0.8V to 47V High power conversion efficiency over a wide Available in 3x3 QFN10 and SOIC8 load range is achieved by scaling down the Packages switching frequency at light load condition to reduce the switching and gate driving losses. APPLICATIONS The frequency foldback helps prevent inductor High Voltage Power Conversion current runaway during startup and thermal Automotive Systems shutdown provides reliable, fault tolerant Industrial Power Systems operation. Distributed Power Systems Battery Powered Systems By switching at 4MHz, the MP2562 is able to prevent EMI (Electromagnetic Interference) noise MPS and The Future of Analog IC Technology are Registered Trademarks of problems, such as those found in AM radio and Monolithic Power Systems, Inc. ADSL applications. The MP2562 is available in small 3mm x 3mm QFN10 and SOIC8 packages. TYPICAL APPLICATION C4 100nF 90 V =8V IN 10 L1 80 8,9 BST 1,2 VOUT SW VIN VIN 3.3V C2 C1 D1 R5 6.3V 70 100V V =24V IN 3 5 FB EN EN MP2562 V =50V R1 IN R2 60 R6 V =36V IN 7 4 COMP FREQ V =12V IN 50 C3 GND 220pF R4 6 R3 40 10 100 1000 OUTPUT CURRENT (mA) MP2562 Rev. 1.0 www.MonolithicPower.com 1 2/28/2014 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved. EFFICIENCY (%)MP2562 1A, 4MHz, 50V STEP-DOWN CONVERTER ORDERING INFORMATION Part Number Package Top Marking Free Air Temperature (T ) A MP2562DQ* 3x3 QFN10 9F 40 C to +85C MP2562DS** SOIC8 MP2562DS 40 C to +85C * For Tape & Reel, add suffix Z (e.g. MP2562DQZ) . For RoHS Compliant Packaging, add suffix LF (e.g. MP2562DQLFZ) ** For Tape & Reel, add suffix Z (e.g. MP2562DSZ) . For RoHS Compliant Packaging, add suffix LF (e.g. MP2562DSLFZ) PACKAGE REFERENCE TOP VIEW TOP VIEW SW 1 10 BST SW 2 9 VIN SW 1 8 BST EN 3 8 VIN EN 2 7 VIN COMP 4 7 FREQ COMP 3 6 FREQ FB 5 6 GND FB 4 5 GND EXPOSED PAD ON BACKSIDE CONNECT TO GND QFN10 SOIC8 (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC Supply Voltage (V ).....................0.3V to +55V IN 3x3 QFN10 ............................. 50...... 12... C/W Switch Voltage (V )........................................... SW SOIC8..................................... 96...... 45... C/W ................-0.3V (-5V for <10ns) to V +0.3V IN Notes: BST to SW .....................................0.3V to +6V 1) Exceeding these ratings may damage the device. All Other Pins.................................0.3V to +6V 2) The maximum allowable power dissipation is a function of the (2) Continuous Power Dissipation(T =+25 C) maximum junction temperature T(MAX), the junction-to- A J ambient thermal resistance , and the ambient temperature JA 3x3 QFN10..2.5W T . The maximum allowable continuous power dissipation at A SOIC8...1.3W any ambient temperature is calculated by P (MAX)=(T (MAX)- D J T )/ . Exceeding the maximum allowable power dissipation A JA Junction Temperature...............................150C will cause excessive die temperature, and the regulator will go Lead Temperature ....................................260C into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage.. Storage Temperature................. 65C to +150 3) The device is not guaranteed to function outside of its (3) operating conditions. Recommended Operating Conditions 4) Measured on JESD51-7 4-layer board. Supply Voltage V ...........................4.5V to 50V IN Output Voltage V .........................0.8V to 47V OUT Operating Junct. Temp......... 40C to +125 C MP2562 Rev. 1.0 www.MonolithicPower.com 2 2/28/2014 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved.