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MP8861 Datasheet(PDF) 1 Page - Monolithic Power Systems |
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MP8861 Datasheet(HTML) 1 Page - Monolithic Power Systems |
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1 / 37 page  MP8861 2.85V - 18V, 6A, High-Efficiency, Wide-Input, Synchronous, Step-Down Converter with Integrated Telemetry via I2C Interface MP8861 Rev. 1.1 www.MonolithicPower.com 1 5/28/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. The Future of Analog IC Technology DESCRIPTION The MP8861 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2C control interface. The MP8861 offers a fully integrated solution that achieves 6A of continuous output current with excellent load and line regulation over a wide input supply range. The output voltage level can be controlled on- the-fly through an I2C serial interface. The reference voltage range can be adjusted from 0.6V to 1.108V in 4mV steps. The voltage slew rate, frequency, current limit, hiccup/latch-off protection, enable, and power-save mode (PSM) are also selectable through the I2C interface. Constant-on-time (COT) control operation provides fast transient response. An open-drain power good (PG) pin indicates that the output voltage is in the nominal range. Full protection features include over-voltage protection (OVP), over-current protection (OCP), and thermal shutdown. The MP8861 is available in a QFN-14 (3mmx4mm) package. FEATURES Wide 2.85V to 18V Operating Input Range 6A Continuous Output Current 1% Internal Reference Accuracy I2C Programmable Reference Range from 0.6V to 1.108V in 4mV Steps with Slew Rate Control 5% Accuracy Output Voltage and Output Current Monitoring via I2C Selectable PFM/PWM Mode, Adjustable Frequency and Current Limit through I2C Four Different Selectable I2C Addresses External Soft Start (SS) Open-Drain Power Good (PG) Indication Output Over-Voltage Protection (OVP) Hiccup/Latch-Off Over-Current Protection (OCP) VOUT Adjustable up to 5.5V using FB pin Available in a QFN-14 (3mmx4mm) Package APPLICATIONS Solid-State Drives (SSD) Flat-Panel Televisions and Monitors Digital Set-Top Boxes Distributed Power Systems Networking/Servers 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 0.01 0.1 1 VIN=4.5V VIN=12V 60 64 68 72 76 80 84 88 92 96 100 VIN=18V 8 |
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