MP2565 2.5A, 4MHz, 50V Step-Down Converter The Future of Analog IC Technology FEATURES DESCRIPTION 120 A Quiescent Current The MP2565 is a high frequency step-down Wide 4.5V to 50V 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. High-Efficiency, Light-Load operation The wide 4.5V to 50V input range accommodates Stable with Ceramic Capacitor a variety of step-down applications, including Internal Soft-Start those in an automotive input environment. A 12A Internally Set Current Limit without external shutdown mode supply current allows use in Current Sensing Resistor battery-powered applications. Up to 95% Efficiency High power conversion efficiency over a wide Output Adjustable from 0.8V to 47V load range is achieved by scaling down the Available in 3x3 QFN10 and Thermally switching frequency at light load condition to Enhanced SOIC8 Packages 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 By switching at 4MHz, the MP2565 is able to Battery Powered Systems prevent EMI (Electromagnetic Interference) noise All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. problems, such as those found in AM radio and For MPS green status, please visit MPS website under Quality ADSL applications. Assurance. MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. The MP2565 is available in small 3mm x 3mm QFN10 and thermally enhanced SOIC8 packages. TYPICAL APPLICATION C4 Efficiency V =3.3V OUT 100nF fs=500kHz 100 10 L1 V =8V IN V =12V V 8,9 BST 1,2 IN IN VOUT SW VIN 90 3.3V C2 C1 D1 R5 6.3V 80 50V 3 5 FB EN EN MP2565 R1 70 V =24V R2 IN V =36V R6 IN 60 7 4 V =50V COMP IN FREQ C3 50 GND 220pF R4 6 R3 40 0 0.5 1 1.5 2 2.5 I (A) OUT MP2565 Rev. 1.01 www.MonolithicPower.com 1 12/9/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2015 MPS. All Rights Reserved. EFFICIENCY (%)MP2565 2.5A, 4MHz, 50V STEP-DOWN CONVERTER ORDERING INFORMATION Part Number* Package Top Marketing Free Air Temperature (T ) A MP2565DQ 3x3 QFN10 8D 40 C to +85C MP2565DN SOIC8E MP2565DN For Tape & Reel, add suffix Z (eg. MP2565DQZ) For RoHS Compliant Packaging, add suffix LF (eg. MP2565DQLFZ) For Tape & Reel, add suffix Z (eg. MP2565DNZ) For RoHS Compliant Packaging, add suffix LF (eg. MP2565DNLFZ) PACKAGE REFERENCE TOP VIEW TOP VIEW SW 1 8 BST SW 1 10 BST SW 2 9 VIN EN 2 7 VIN EN 3 8 VIN COMP 3 6 FREQ COMP 4 7 FREQ FB 4 5 GND FB 5 6 GND EXPOSED PAD EXPOSED PAD CONNECT TO GND ON BACKSIDE CONNECT TO GND (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 (Exposed Pad) ............50 ...... 10... C/W ..0.3V (-9V 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 = +25C) maximum junction temperature T(MAX), the junction-to- J A ambient thermal resistance , and the ambient temperature JA 3x3QFN102.5W T . The maximum allowable continuous power dissipation at A SOIC8...2.5W any ambient temperature is calculated by P (MAX)=(T (MAX)-T )/ . Exceeding the maximum D J A JA Junction Temperature...............................150C allowable power dissipation will cause excessive die Lead Temperature ....................................260C temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from Storage Temperature.............. 65C to +150C permanent damage.. (3) 3) The device is not guaranteed to function outside of its Recommended Operating Conditions operating conditions. Supply Voltage V ...........................4.5V to 50V 4) Measured on JESD51-7 4-layer board. IN Output Voltage V .........................0.8V to 47V OUT Operating Junction Temp. (T ). -40C to +125C J MP2565 Rev. 1.01 www.MonolithicPower.com 2 12/9/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2015 MPS. All Rights Reserved.