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MP8869W Datasheet(PDF) 1 Page - Monolithic Power Systems |
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MP8869W Datasheet(HTML) 1 Page - Monolithic Power Systems |
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1 / 41 page  MP8869W 3V - 18V, 12A, High-Efficiency, Wide-Input, Synchronous Step-Down Converter with Integrated Telemetry via I2C Interface MP8869W Rev. 1.02 www.MonolithicPower.com 1 1/18/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. DESCRIPTION The MP8869W is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2C control interface. It offers a fully integrated solution that achieves 12A of continuous and 15A of peak output current with excellent load and line regulation over a wide input supply range. In the I2C control loop, the output voltage level can be controlled on-the-fly through an I2C serial interface. The voltage range can be adjusted from 0.6V to 1.55V in 7.5mV steps. Voltage slew rate, frequency, current limit, hiccup/latch-off protection, enable, and power saving mode 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 MP8869W is available in a QFN-14 (3mmx4mm) package. FEATURES Wide 3V to 18V Operating Input Range 12A Continuous/15A Peak Output Current 1% Internal Reference Accuracy I2C Programmable Output Range from 0.6V to 1.55V in 7.5mV 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 4 Different Selectable I2C Addresses External Soft Start Open-Drain Power Good Indication Output Over-Voltage Protection (OVP) Hiccup/Latch-Off OCP Available in a QFN-14 (3mmx4mm) Package APPLICATIONS Solid-State Drive (SSD) Flat-Panel Television and Monitors Digital Set-Top Boxes Distributed Power Systems Networking/Server 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 MP8869W SCL EN VIN C1 22uFx2 SDA VIN VO AGND C2 22uFx4 PG VOUT 3V-18V L1 1.5uH I2C Bus { 1V/12A VCC C5 470nF SS BST C6 22nF C3 100nF A0 SW PGND FB R2 120k R1 80.6k EN PG |
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