MP8869

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

Datasheet

Description

The MP8869 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an 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-the-fly through an I2C serial interface. The voltage range can be adjusted from 0.6V to 1.87V in 10mV 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 MP8869 is available in a QFN-14 (3mmx4mm) package.

Features & Benefits

Wide 4.5V to 17V Operating Input Range
12A Continuous/15A Peak Output Current
1% Internal Reference Accuracy
I2C Programmable Output Range from 0.6V to 1.87V in 10mV 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

Active Part Numbers:

MP8869GL-P MP8869GL-Z MP8869SGL-P MP8869SGL-Z MP8869WGL-P MP8869WGL-Z

Evaluation Tools

Virtual Bench Pro 4.0 Evaluation Kit Graphical User Interface (GUI) Supported by MPS Used to Configure and Monitor Multiple MPS Digital Power Solutions with an I²C Interface

The Virtual Bench Pro 4.0 is a Graphical User Interface (GUI) supported by MPS used to configure and monitor multiple MPS digital power solutions with an I²C Interface. This GUI is an intuitive tool that can be used with MPS evaluation kits and helps assist in the evaluation and in the testing phases of your design.

Hardware & Software Requirements:

USB to I2C Communication Device EVKT-USBI2C-02
PC running Window 7 or later
.Net Framework 4.0 or later

Features:

Support PMBus open standard protocol. Common commands such as setting the output, switching frequency, etc
Provide tips for the parameter configuration of the digital power solution
Monitor real-time data and displayed values by the GUI such as: