ADP5020(RevA) 查看數據表（PDF） - Analog Devices

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ADP5020
(Rev.:RevA)

Power Management Unit for Imaging Modules

Analog Devices 

ADP5020

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

Typical Applications Circuit............................................................ 1

General Description ......................................................................... 1

Revision History ............................................................................... 2

Functional Block Diagram .............................................................. 3

Specifications..................................................................................... 4

Switching Specifications .............................................................. 5

DC-to-DC Conversion Specifications, Buck 1 Regulator....... 5

DC-to-DC Conversion Specifications, Buck 2 Regulator....... 6

VOUT3 Specifications, Low Dropout (LDO) Regulator ........ 6

I2C Timing Specifications............................................................ 7

Absolute Maximum Ratings............................................................ 8

Thermal Resistance ...................................................................... 8

ESD Caution.................................................................................. 8

Pin Configurations and Function Descriptions ........................... 9

Typical Performance Characteristics ........................................... 10

Theory of Operation ...................................................................... 13

Circuit Operation ....................................................................... 13

Internal Compensation.............................................................. 13

Current Limiting and Short-Circuit Protection ..................... 13

Synchronization .......................................................................... 13

I2C Interface ................................................................................ 13

REVISION HISTORY

9/2018—Rev. 0 to Rev. A

Changed CP-20-4 to CP-20-10 .................................... Throughout

Changes to Table 8............................................................................ 8

Changes to Figure 4 and Figure 5 ................................................... 9

Updated Outline Dimensions ....................................................... 25

Changes to Ordering Guide .......................................................... 25

4/2009—Revision 0: Initial Version

Data Sheet

Undervoltage Lockout ............................................................... 13

Thermal Shutdown .................................................................... 13

Control Registers ............................................................................ 14

Device Address ........................................................................... 14

Register Map ............................................................................... 14

Register Descriptions ................................................................. 14

Power-Up/Power-Down Sequence............................................... 17

Sequencer .................................................................................... 17

Default Power-On Sequence with EN Pin .............................. 17

Power-On Sequence Using the I2C Interface.............................. 19

Power-Up/Power-Down State Flow ......................................... 20

Applications Information .............................................................. 21

Power Good Status ..................................................................... 21

XSHTDN Logic .......................................................................... 21

Components Selection............................................................... 21

LDO Input Filter......................................................................... 22

Layout Recommendations............................................................. 23

Applications Schematic ............................................................. 23

PCB Board Layout Recommendations.................................... 24

External Component List .......................................................... 24

Outline Dimensions ....................................................................... 25

Ordering Guide .......................................................................... 25

Rev. A | Page 2 of 28

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