MP8869W High-Efficiency, 12A, 18V, Synchronous Step-Down Converter with I2C Interface The Future of Analog IC Technology PRELIMINARY SPECIFICATIONS SUBJECT TO CHANGE DESCRIPTION FEATURES The MP8869W is a high-frequency, synchronous, rectified, step-down, switch-mode converter with I2C control interface. It offers a fully integrated solution to achieve a 12A continuous and 15A 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-thefly through an I2C serial interface. The voltage range can be adjusted from 0.6V to 1.55V in 7.5mV steps. The voltage slew rate, frequency, current limit, hiccup/latch-off protection, enable, and power savings mode are also selectable through the I2C interface. COT control operation provides fast transient response. An open drain power good pin indicates that the output voltage is in the nominal range. Full protection features include over-voltage protection, over-current protection, and thermal shutdown. The MP8869W is available in a 14(3mmx4mm) package. QFN- 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 Read Back via I2C Selectable PFM/PWM Mode and Adjustable Frequency & Current Limit through I2C 4 Different I2C Addresses Selectable External Soft Start Open Drain Power Good Indication Output Over-Voltage Protection Hiccup/Latch Off OCP Protection QFN-14(3mmx4mm) Package APPLICATIONS Solid State Driver (SSD) Flat-Panel Television and Monitors Digital Set-Top Boxes Distributed 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. Please email ‘[email protected]’ for more information. TYPICAL APPLICATION 100 96 92 VIN=4.5V VIN=12V 88 84 80 VIN=18V 76 72 68 64 60 0.01 0.1 1 10 100 OUTPUT CURRENT (A) MP8869W Rev.0.8 www.MonolithicPower.com 4/25/2016 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. Preliminary Specifications Subject to Change © 2016 MPS. All Rights Reserved. 1