基于LTCR3589设计的带I2C八输出电源稳压方案

LTCR3589主要特性：

Triple I2C Adjustable High Efficiency Step-Down DC/DC Converters: 1.6A, 1A, 1A

High Efficiency 1.2A Buck-Boost DC/DC Converter

Triple 250mA LDO Regulators

Pushbutton ON/OFF Control with System Reset

Flexible Pin-Strap Sequencing OperaTIon

I2C and Independent Enable Control Pins

Power Good and Reset Outputs

Dynamic Voltage Scaling and Slew Rate Control

Selectable 2.25MHz or 1.12MHz Switching Frequency

Always Alive 25mA LDO Regulator

8μA Standby Current

40-Pin 6mm × 6mm × 0.75mm QFN

LTCR3589应用：

Handheld Instruments and Scanners

Portable Industrial Devices

AutomoTIve Infotainment

Medical Devices

High End Consumer Devices

MulTIrail Systems

Supports Freescale i.MX, Marvell PXA and Other ApplicaTIon Processors

图1。LTCR3589方框图

图2。LTCR3589典型应用电路图（1）

图3。LTCR3589典型应用电路图（2）