ADP5023(RevA) Просмотр технического описания (PDF) - Analog Devices

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ADP5023
(Rev.:RevA)

Dual 3 MHz, 800 mA Buck Regulators with One 300 mA LDO

Analog Devices 

ADP5023

TABLE OF CONTENTS

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

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

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

Typical Application Circuit ............................................................. 1

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

Specifications..................................................................................... 3

General Specifications ................................................................. 3

BUCK1 and BUCK2 Specifications ........................................... 4

LDO Specifications ...................................................................... 5

Input and Output Capacitor, Recommended Specifications .. 5

Absolute Maximum Ratings............................................................ 6

Thermal Resistance ...................................................................... 6

ESD Caution.................................................................................. 6

Pin Configuration and Function Descriptions............................. 7

Typical Performance Characteristics ............................................. 8

REVISION HISTORY

1/12—Rev. 0 to Rev. A

Changes to Features Section............................................................ 1

Changes to Table 2............................................................................ 4

Changes to Table 3 and Table 4....................................................... 5

Changes to Table 5............................................................................ 6

Changes to Table 7............................................................................ 7

Changes to Figure 34...................................................................... 13

Changes to Buck Regulator Power Dissipation Section ............ 15

Changes to Undervoltage Lockout Section................................. 18

Changes to LDO Section and Figure 48 ...................................... 20

Changes to Table 9.......................................................................... 22

Changes to Figure 52...................................................................... 25

Changes to Ordering Guide .......................................................... 27

8/11—Revision 0: Initial Version

Data Sheet

Power Dissipation and Thermal Considerations ....................... 15

Buck Regulator Power Dissipation .......................................... 15

Junction Temperature ................................................................ 16

Theory of Operation ...................................................................... 17

Power Management Unit........................................................... 17

BUCK1 and BUCK2 .................................................................. 19

LDO.............................................................................................. 20

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

Buck External Component Selection....................................... 21

LDO External Component Selection ...................................... 23

PCB Layout Guidelines.................................................................. 24

Typical Application Schematics.................................................... 25

Bill of Materials............................................................................... 26

Outline Dimensions ....................................................................... 27

Ordering Guide .......................................................................... 27

Rev. A | Page 2 of 28

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