LTC3589-2_15 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
3589fg
2
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