MPQ4561-AEC1 1.5A, 2MHz, 55V Step-Down Converter Available in AEC-Q100 DESCRIPTION FEATURES The MPQ4561 is a high-frequency, step-down, Guaranteed Industrial/Automotive switching regulator with an integrated internal Temperature Range Limits high-side high voltage power MOSFET. It Wide 3.8V to 55V Operating Input Range provides up to a 1.5A output with current mode 300m Internal Power MOSFET control for fast loop response and easy Up to 2MHz Programmable Switching compensation. Frequency 140A Quiescent Current The wide 3.8V-to-55V input range accommodates Stable with Ceramic Capacitor a variety of step-down applications, including External Soft-Start those in automotive input environment. A 12A shutdown mode supply current makes it suitable Up to 95% Efficiency for battery-powered applications. Output Adjustable from 0.8V to 52V Available in QFN10 (3mmx3mm) package A scaled-down switching frequency in light-load AEC-Q100 Qualified conditions provides high power-conversion efficiency over a wide load range while reducing APPLICATIONS switching and gate driver losses. High-Voltage Power Conversion The frequency foldback prevents inductor current Automotive Systems runaway during startup and thermal shutdown Industrial Power Systems provides reliable, fault tolerant operation. Distributed Power Systems By switching at 2MHz, the MPQ4561 is able to Battery Powered Systems prevent EMI (Electromagnetic Interference) noise All MPS parts are lead-free and adhere to the RoHS directive. For MPS green problems, such as those found in AM radio and status, please visit MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are Registered Trademarks of ADSL applications. Monolithic Power Systems, Inc. The MPQ4561 is available in a 3mm x 3mm QFN10 package with an exposed pad. TYPICAL APPLICATION MPQ4561 Rev. 1.12 www.MonolithicPower.com 1 5/24/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved. MPQ4561 1.5A, 2MHz, 55V STEP-DOWN CONVERTER ORDERING INFORMATION Part Number Package Top Marking Junction Temperature (T ) J MPQ4561DQ* 9C QFN10 (3x3mm) 40C to +125C MPQ4561DQ-AEC1** 9C * For Tape & Reel, add suffix Z (e.g. MPQ4561DQAEC-Z) For RoHS compliant packaging, add suffix LF (e.g. MPQ4561DQAEC-LFZ) ** Available End Sept. 2011 PACKAGE REFERENCE (1) (4) ABSOLUTE MAXIMUM RATINGS Thermal Resistance JA JC Supply Voltage (V ) .................... 0.3V to +60V QFN10 (3x3mm) ..................... 50 ...... 12 ... C/W IN Switch Voltage (V ) ......... 0.5V to (V + 0.5V) SW IN Notes: BST to SW .................................... 0.3V to +5V 1) Exceeding these ratings may damage the device. All Other Pins ................................ 0.3V to +5V 2) The maximum allowable power dissipation is a function of the (2) maximum junction temperature T (MAX), the junction-to- J Continuous Power Dissipation (T = 25C) A ambient thermal resistance JA, and the ambient temperature ............................................................ 2.5W T . The maximum allowable continuous power dissipation at A any ambient temperature is calculated by P (MAX)=(T (MAX)- D J Junction Temperature .............................. 150C T )/ . Exceeding the maximum allowable power dissipation A JA Lead Temperature ................................... 260C will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry Storage Temperature .............. 65C to +150C protects the device from permanent damage. (3) Recommended Operating Conditions 3) The device is not guaranteed to function outside of its operating conditions. Supply Voltage V .......................... 3.8V to 55V IN 4) Measured on JESD51-7 4-layer board. Output Voltage V ........................ 0.8V to 52V OUT Maximum Junction Temp. (T ) ............... +125C J MPQ4561 Rev. 1.12 www.MonolithicPower.com 2 5/24/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved.