LTC3577EUFF-3(RevA) データシートの表示（PDF） - Linear Technology

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LTC3577EUFF-3
(Rev.:RevA)

Highly Integrated Portable Product PMIC

Linear Technology 

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...............................................................................................29

STEP-DOWN SWITCHING REGULATOR OPERATION ............................................................................................30

LED BACKLIGHT/BOOST OPERATION ...................................................................................................................34

I2C OPERATION .....................................................................................................................................................37

PUSHBUTTON INTERFACE OPERATION ................................................................................................................43

LAYOUT AND THERMAL CONSIDERATIONS .........................................................................................................47

TYPICAL APPLICATION..............................................................................................................................................49

PACKAGE DESCRIPTION............................................................................................................................................51

RELATED PARTS........................................................................................................................................................52

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