MP2560DQ-LF-P

MP2560 2.5A, 4MHz, 42V Step-Down Converter The Future of Analog IC Technology FEATURES DESCRIPTION 120 A Quiescent Current The MP2560 is a high frequency step-down Wide 4.5V to 42V Operating Input Range switching regulator with an integrated internal 220m Internal Power MOSFET high-side high voltage power MOSFET. It Up to 4MHz Programmable Switching provides 2.5A output with current mode control for Frequency fast loop response and easy compensation. Stable with Ceramic Capacitor The wide 4.5V to 42V 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 Up to 93% Efficiency battery-powered applications. Output Adjustable from 0.8V to 39V High power conversion efficiency over a wide Available in 3x3 QFN10 and Thermally load range is achieved by scaling down the Enhanced SOIC8 Packages switching frequency at light load condition to APPLICATIONS reduce the switching and gate driving losses. High Voltage Power Conversion The frequency foldback helps prevent inductor Automotive Systems current runaway during startup and thermal Industrial Power Systems shutdown provides reliable, fault tolerant Distributed Power Systems operation. Battery Powered Systems By switching at 4MHz, the MP2560 is able to MPS and The Future of Analog IC Technology are Registered Trademarks of prevent EMI (Electromagnetic Interference) noise Monolithic Power Systems, Inc. problems, such as those found in AM radio and ADSL applications. The MP2560 is available in small 3mm x 3mm QFN10 and thermally enhanced SOIC8 packages. TYPICAL APPLICATION Efficiency vs. C4 100nF Load Current 95 V =12V V =8V IN IN 10 90 8,9 1,2 BST V OUT V VIN SW IN 85 3.3V D1 80 V =24V IN V =36V IN 3 5 75 FB EN EN MP2560 70 65 7 4 COMP FREQ 60 C3 V =3.3V GND 220pF OUT 55 fs=500kHz 6 50 1.5 0 0.5 1 2 2.5 LOAD CURRENT (A) MP2560 Rev. 1.21 www.MonolithicPower.com 1 2/28/2014 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved. EFFICIENCY (%)MP2560 2.5A, 4MHz, 42V STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marking Temperature MP2560DQ 3x3 QFN10 S8YW 40 C to +85C SOIC8E MP2560DN MP2560DN * For Tape & Reel, add suffix Z (eg. MP2560DQZ). For RoHS Compliant Packaging, add suffix LF (eg. MP2560DQLFZ) ** For Tape & Reel, add suffix Z (eg. MP2560DNZ). For RoHS Compliant Packaging, add suffix LF (eg. MP2560DNLFZ) PACKAGE REFERENCE TOP VIEW TOP VIEW SW 1 8 BST SW 1 10 BST EN 2 7 VIN SW 2 9 VIN EN 3 8 VIN COMP 3 6 FREQ COMP 4 7 FREQ FB 4 5 GND FB 5 6 GND EXPOSED PAD CONNECT TO GND EXPOSED PAD ON BACKSIDE CONNECT TO GND (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC Supply Voltage (V ).....................0.3V to +45V IN 3x3 QFN10 ............................. 50...... 12... C/W Switch Voltage (V ) .......................................... SW SOIC8 (Exposed Pad) ............ 50...... 10... C/W ............ 0.3V (-7V for < 10ns) to V + 0.3V IN Notes: 1) Exceeding these ratings may damage the device. BST to SW .....................................0.3V to +6V 2) The maximum allowable power dissipation is a function of the All Other Pins.................................0.3V to +6V maximum junction temperature T (MAX), the junction-to- J (2) Continuous Power Dissipation (T = +25C) ambient thermal resistance , and the ambient temperature A JA T . The maximum allowable continuous power dissipation at A 3x3 QFN10 ................................................ 2.5W any ambient temperature is calculated by P (MAX) = (T D J SOIC8 ........................................................ 2.5W (MAX)-T )/ . Exceeding the maximum allowable power A JA dissipation will cause excessive die temperature, and the Junction Temperature...............................150C regulator will go into thermal shutdown. Internal thermal Lead Temperature ....................................260C shutdown circuitry protects the device from permanent damage. Storage Temperature.............. 65C to +150C 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 42V IN Output Voltage V .........................0.8V to 39V OUT Operating Temperature............. 40 C to +85 C MP2560 Rev. 1.21 www.MonolithicPower.com 2 2/28/2014 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2014 MPS. All Rights Reserved.