LTC3577-4_15 Datasheet, PDF (2/52 Pages) Linear Technology – Highly Integrated Portable Product PMIC

LTC3577-3/LTC3577-4
TABLE OF CONTENTS
Features ............................................................................................................................ 1
Applications ....................................................................................................................... 1
Typical Application ............................................................................................................... 1
Description......................................................................................................................... 1
Absolute Maximum Ratings..................................................................................................... 3
Order Information................................................................................................................. 3
Pin Configuration ................................................................................................................. 3
Electrical Characteristics ........................................................................................................ 4
Typical Performance Characteristics .........................................................................................10
Pin Functions .....................................................................................................................16
Block Diagram....................................................................................................................19
Operation.......................................................................................................................... 20
PowerPath OPERATION ........................................................................................................................................ 20
Low Dropout Linear Regulator Operation ............................................................................................................. 28
Step-Down Switching Regulator Operation........................................................................................................... 29
LED Backlight/Boost Operation............................................................................................................................. 33
I²C Operation ........................................................................................................................................................ 37
Pushbutton Interface Operation............................................................................................................................ 42
Layout and Thermal Considerations ..................................................................................................................... 46
Typical Applications .............................................................................................................48
Package Description ............................................................................................................50
Related Parts .....................................................................................................................51
357734fb
2