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MPQ9842GL Datasheet(PDF) 1 Page - MPS Industries, Inc. |
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MPQ9842GL Datasheet(HTML) 1 Page - MPS Industries, Inc. |
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1 / 37 page  MPQ9842 36V, 2A, Low IQ, Step-Down Converter AEC-Q100 Qualified MPQ9842 Rev. 1.1 www.MonolithicPower.com 1 7/29/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. DESCRIPTION The MPQ9842 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution that achieves 2A of continuous output current with excellent load and line regulation over a wide 3.3V to 36V input supply range. The switching frequency is programmable or can be synchronized to an external clock in the range of 350kHz to 2.5MHz. Synchronous operation and ultra-low 14μA sleep mode quiescent current provide high efficiency over the output current load range, allowing the MPQ9842 to be used in a variety of step-down applications in automotive input environments and battery-powered applications. Peak-current-mode operation provides fast transient response and eases loop stabilization. The excellent low dropout performance allows the MPQ9842 to be used in high duty cycle applications. Full protection features include over-current protection (OCP), short-circuit protection (SCP), and thermal shutdown. An open-drain power good (PG) signal indicates when the output is within 10% of its nominal voltage. The MPQ9842 is available in a space-saving QFN-16 (3mmx4mm) package. FEATURES • 2μA Low Shutdown Supply Current • 14μA No-Load Quiescent Current • Internal 125mΩ High-Side and 55mΩ Low- Side MOSFET • 350kHz to 2.5MHz Programmable Switching Frequency • Power Good (PG) Output • External Soft Start (SS) • 80ns Minimum On Time • Selectable Forced CCM and AAM • Hiccup Over-Current Protection (OCP) • AEC-Q100 Grade-1 • Available in a QFN-16 (3mmx4mm) Package APPLICATIONS • Automotive Systems • Industrial Power Systems All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are registered trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION VOUT SW EN VIN BST MPQ9842 PHASE SS FREQ SYNC FB VCC PG BIAS VIN GND OFF ON VOUT SW EN VIN BST MPQ9842 PHASE SS FREQ SYNC FB VCC PG BIAS VIN GND OFF ON Output Adjustable Version Output Fixed Version |
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