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IC manufacturers Monolithic Power Systems

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Monolithic Power Systems EV8865-Q-00A

6A High Efficient Synchronous Step-Down Converter with I²C Interface


TopologyBuck Converter
Input voltage4.5-21 V
Output 11.2 V / 6 A
IC revision1.0


The EV8865-Q-00A is used for demonstrating the performance of MPS’s MP8865. MP8865 is a highly integrated and high frequencysynchronous step-down switcher with I2C control interface. It is optimized to support up to 6A load current over an input supply range from4.5V to 21V with excellent load and line regulation.Current-Mode operation provides fast transient response and eases loop stabilization. The output voltage level can be controlled, on-the flythrough a 3.4Mbps I2C serial interface. Voltage range can be adjusted from 0.6V to 1.87V in 10mV steps. Voltage slew rate, switchingfrequency and power savings mode are also selectable through the I2C interface. Fully protection features includes over currentprotection, over voltage protection and over temperature protection.MP8865 is available in QFN15 (3mmx3mm) package.


  • Wide 4.5V-to-21V Operation Input Range
  • 45mΩ/18mΩ Low RDS(ON) Internal PowerMOSFETs
  • 1% VOUT Accuracy
  • I2C Programmable Output Range from 0.6Vto 1.87V in 10mV Steps with Slew RateControl
  • I2C Selectable Switching Frequency. Default600kHz Switching Frequency.
  • Programmable Default Output Voltage
  • Power Saving Mode, OTP and OCP Via I2C
  • Power Good Indication
  • 1 bit I2C Address Set pin
  • OCP Protection and Hiccup
  • External Soft Start
  • Available in QFN3x3 Package