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MP8869W

Active
High Efficiency, 12A, 18V, Synchronous Step-Down Converter with I2C Interface
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Datasheet (EN)

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Product Description

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 QFN-14(3mmx4mm) package.

Product 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 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

Parametrics

  • fsw (max) (kHz)1250
  • Vin (min) (V)3
  • Vin (max) (V)18
  • Iout (max) (A)12
  • Isw Limit (typ) (A)14
  • Vfb (typ) (V)0.6
  • Iq (typ) (mA)0.42
  • Regulated Outputs1
  • Vout (max) (V)5.5
  • Vout (min) (V)0.6
  • GradeCatalog
  • PackageQFN-14 (3x4)
  • Control ModeCOT
  • Common FeaturesExternal Soft Start, Light-Load Efficiency, Power Good, Synchronous Rectification
  • Special Features4 Different I2C Addresses Selectable, 5% Accuracy Output Voltage and Output Current Readback via I2C, I2C Interface, Programmable Frequency, Programmable Output Voltage, Selectable Current Limit, Selectable PFM/PWM Mode

EV8869W-L-00A


High Efficiency, 12A, 17V, Synchronous Step-Down Converter with I2C Interface

The EV8869W-L-00A is used for demonstrating the performance of MPS’s MP8869W. MP8869W is a highly integrated and high frequency synchronous step-down switcher with I2C control interface. It is optimized to support up to 12A continuous/15A peak output current over an input supply range from 3V to 18V with excellent load and line regulation.

COT control operation provides fast transient response and eases loop stabilization. In I2C control loop, the output voltage level can be controlled, on-the fly through an I2C serial interface. Output voltage range can be adjusted from 0.6V to 1.55V in 7.5mV steps. Voltage scaling slew rate, enable and power saving mode are also selectable through the I2C interface. Full protection features include over voltage, over-current protection and thermal shut down.

The MP8869W is available in QFN-14(3mmx4mm) package.

$25.00 + tax


MP88xx I2C GUI


Configure multiple parameters of the MP88xx including output voltage and fsw.

This I2C GUI allows you to program the MP88xx . By using this I2C GUI, you can set the output voltage, switching frequency, slew rate, and operation mode. Please reference the parts respective user guides for installation and programing instructions.

System Requirements:

Windows 7 or later

.Net Framework 4 or later


EVKT-8869W


3V-18V, 12A, High-Efficiency, Wide-Input, Synchronous, Step-Down Converter

The MP8869W is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2C control interface. The MP8869W 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.

Highly customizable, the MP8869W is capable of supporting a diverse array of applications. Users can program it via MPS I2C GUI; however, changes made in I2C mode will not be retained once the EVB is powered down.

The EVKT8869W is a valuable evaluation tool well-suited for all types of experience levels, from beginner to expert, and can help users quickly determine if the MP8869W is right for their target application.

$75.00 + tax


EVKT-USBI2C-02


Communication Interface Device USB to I2C/PMBus

EVKT-USBI2C-02 is the evaluation kit that provides the USB to I2C port as well as PMBus capabilities. It is designed to work with MPS I2C and PMBus products, and Virtual Bench Pro, and I2C GUI tools.  Together with MPS Virtual Bench Pro and I2C GUI tools, it provides a quick and easy way to evaluate the performance of MPS digital products.

The EVKT-USBI2C-02 kit includes:

  • 1 USB to I2C communication device interface
  • 1 USB cable
  • 1 10-pin ribbon cable
  • 1 3-pin ribbon cable
  • Thumbdrive with datasheet and driver files

$25.00 + tax


Reference Materials