MPQ4473-AEC1 High-Efficiency, Fast-Transient, 3.5A, 36V Synchronous, Step-Down Converter with AEC-Q100 Qualified DESCRIPTION FEATURES The MPQ4473 is a fully integrated, high- Wide 4.5V-to-36V Operating Input Range frequency, synchronous, rectified, step-down, Guaranteed 3.5A, Continuous Output switch-mode converter. It offers a compact Current solution to achieve a 3.5A, continuous-output Internal 40m High-Side, 20m Low-Side current over a wide input-supply range with Power MOSFETs excellent load and line regulation. It provides Proprietary Switching-Loss-Reduction fast, transient response and good stability for Technology wide input-supply and load range. The 1% Reference Voltage MPQ4473 operates at high efficiency over a Programmable Soft-Start Time wide-output-current load range. Low Drop-Out Mode MPQ4473 has full protection features including, 200kHz-to-1MHz Switching Frequency short-circuit protection (SCP), over-current SCP, OCP, UVP, and Thermal Shutdown protection (OCP), under-voltage protection Output Adjustable from 0.8V to 0.9V IN (UVP), and thermal shutdown (TSD). Available in a 3mmx4mm, 20-pin, QFN Package The MPQ4473 requires minimal, readily available, Available in AEC-Q100 Grade 1 standard, external components, and is available in a compact 3mmx4mm, 20-pin, QFN package. APPLICATIONS Notebook Systems and I/O Power Automotive Systems Networking Systems Industrial Supplies Optical Communications Systems Distributed Power and POL Systems All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. MPS and The Future of Analog IC Technology are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION MPQ4473 Rev. 1.01 www.MonolithicPower.com 1 5/24/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved. MPQ4473HIGH-EFFICIENCY, FAST-TRANSIENT, SYNCHRONOUS, STEP-DOWN CONVERTER, AEC-Q100 QUALIFIED ORDERING INFORMATION Part Number* Package Top Marking MPQ4473GL QFN-20 (3mmx4mm) See Below MPQ4473GL-AEC1 * For Tape & Reel, add suffix Z (e.g. MPQ4473GLZ) TOP MARKING MP: MPS prefix: Y: year code W: week code: 4473: first four digits of the part number LLL: lot number PACKAGE REFERENCE QFN20 (3mm4mm) MPQ4473 Rev. 1.01 www.MonolithicPower.com 2 5/24/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2016 MPS. All Rights Reserved.