MP8869W集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

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.

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

APPLICATIONS

 Solid State Driver (SSD)

 Flat-Panel Television and Monitors

 Digital Set-Top Boxes

 Distributed Power Systems