MP8867

8A, 17V High Efficiency Synchronous Step-Down Converter with I2C Interface

Datasheet

Description

The MP8867 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2C control interface. It achieves an 8A output current with excellent load and line regulation over a wide input supply range. The reference voltage level is controlled by the I2C serial interface with an adjustable reference voltage ranging from 0.6V to 1.87V in 10mV steps. The voltage scaling slew rate, the switching frequency, enable/sync, and power save mode are all selectable through the I2C interface. Current-mode operation provides a fast transient response and eases loop stabilization. EN/SYNC supports external clock synchronization, and an open-drain power good indicates when the output voltage is in the nominal range. Full protection features include over-voltage protection (OVP), hiccup over-current protection (OCP), and thermal shutdown. The MP8867 requires a minimal number of readily available, standard, external components and is available in a QFN-14 (3x4mm) package.

Features & Benefits

Wide 4.5V to 17V Operating Input Range
1% Internal Reference Accuracy
I2C Programmable Reference Output Voltage
Reference Voltage Range from 0.6V to 1.87V in 10mV Steps with Slew Rate Control
I2C Selectable Switching Frequency
200kHz to 2MHz Synchronized External Clock
OTP and OCP Hiccup Indication via I2C
Selectable PSM and FS through I2C
Programmable Soft-Start Time
Open-Drain Power Good Indicator
Small 3x4mm QFN-14 Package

Active Part Numbers:

MP8867GLE-P MP8867GLE-Z

Meaning of P & Z

Evaluation Tools

EVKT-8867 Evaluation Kit 17V, 8A, High-Efficiency, Synchronous, Step-Down Converter

The MP8867 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2C control interface. The MP8867 achieves 8A of output current with excellent load and line regulation over a wide input supply range.

Highly customizable, the MP8867 is capable of supporting a diverse array of low-voltage 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 EVKT8867 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 MP8867 is right for their target application.

$95.00
+ tax

EV8867-LE-00A

High Efficiency, 8A, 17V, Synchronous Step-Down Converter with I2C Interface

MP88xx I2C GUI

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

EVKT-USBI2C-02

Communication Interface Device USB to I²C/PMBus, included with product evaluation kit or can be purchased separately.