MP8869S

2.85-18V, 12A, High-Efficiency, Synchronous Step-Down Converter with Integrated Telemetry via I2C Interface

Datasheet

Description

The MP8869S is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2C control interface. The MP8869S offers a fully integrated solution that achieves 12A of continuous current and 15A of peak output current with excellent load and line regulation over a wide input supply range. The output voltage level can be controlled on-the-fly through an I2C serial interface. The reference voltage range can be adjusted from 0.6V to 1.108V in 4mV steps. The voltage slew rate, frequency, current limit, hiccup/latch-off protection, enable, and power-saving mode are also selectable through the I2C interface. Constant-on-time (COT) control operation provides fast transient response. An open-drain power good (PG) pin indicates when the output voltage is in the nominal range. Full protection features include over-voltage protection (OVP), over-current protection (OCP), and thermal shutdown. The MP8869S is available in a QFN-14 (3mmx4mm) package.

Features & Benefits

Wide 2.85V to 18V Operating Input Range
12A Continuous/15A Peak Output Current
1% Internal Reference Accuracy
I2C-Programmable Reference Range from 0.6V to 1.108V in 4mV Steps with Slew Rate Control
5% Accuracy Output Voltage and Output Current Monitoring via I2C
Selectable PFM/PWM Mode, Adjustable Frequency and Current Limit through I2C
Four Different Selectable I2C Addresses
External Soft Start (SS)
Open-Drain Power Good (PG) Indication
Output Over-Voltage Protection (OVP)
Hiccup/Latch-Off Over-Current Protection (OCP)
Available in a QFN-14 (3mmx4mm) Package

Active Part Numbers:

MP8869SGL-P MP8869SGL-Z

Evaluation Tools

EVKT-8869S Evaluation Kit 18V, 12A, High-Efficiency, Wide-Input, Synchronous, Step-Down Converter

Highly customizable, the MP8869S 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 EVKT8869S 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 MP8869S is right for their target application.

$75.00
+ tax

EV8869S-L-00A

High Efficiency,12A,18V, 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.

Design Resources