LTC3589_12 Datasheet, PDF (2/50 Pages) Linear Technology – 8-Output Regulator with Sequencing and I2C

LTC3589/LTC3589-1/
LTC3589-2
TABLE OF CONTENTS
Features ............................................................................................................................ 1
Applications ....................................................................................................................... 1
Typical Application ............................................................................................................... 1
Description......................................................................................................................... 1
Absolute Maximum Ratings..................................................................................................... 3
Pin Configuration ................................................................................................................. 3
Order Information................................................................................................................. 3
Electrical Characteristics ........................................................................................................ 4
Typical Performance Characteristics .......................................................................................... 9
Pin Functions .....................................................................................................................13
Block Diagram....................................................................................................................15
Operation.......................................................................................................................... 16
Introduction .......................................................................................................................................................... 16
LTC3589, LTC3589-1, and LTC3589-2 Functional Comparison ............................................................................. 17
Always-On LDO..................................................................................................................................................... 17
Step-Down Switching Regulators ......................................................................................................................... 20
Buck-Boost Switching Regulator .......................................................................................................................... 24
Slewing DAC Reference Operation........................................................................................................................ 28
Pushbutton Operation........................................................................................................................................... 29
Enable and Power-On Sequencing ........................................................................................................................ 31
Fault Detection, Shutdown, and Reporting............................................................................................................ 32
I²C Operation ........................................................................................................................................................ 36
Thermal Considerations and Board Layout ........................................................................................................... 42
Typical Application ..............................................................................................................46
Package Description ............................................................................................................48
Revision History .................................................................................................................49
Typical Application ..............................................................................................................50
Related Parts .....................................................................................................................50
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