基于LTCR3589設(shè)計(jì)的帶I2C八輸出電源穩(wěn)壓方案
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應(yīng)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
圖1。LTCR3589方框圖
圖2。LTCR3589典型應(yīng)用電路圖(1)
圖3。LTCR3589典型應(yīng)用電路圖(2)
評(píng)論