ADP5043

Data Sheet

Rev. C | Page 2 of 30

TABLE OF CONTENTS

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

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

High Level Block Diagram .............................................................. 1

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

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

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

Supervisory Specifications .......................................................... 3

Buck Specifications....................................................................... 5

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

Input and Output Capacitor, Recommended Specifications.. 6

Absolute Maximum Ratings............................................................ 7

Thermal Data ................................................................................ 7

Thermal Resistance ...................................................................... 7

ESD Caution.................................................................................. 7

Pin Configuration and Function Descriptions............................. 8

Typical Performance Characteristics ............................................. 9

Theory of Operation ...................................................................... 16

Power Management Unit........................................................... 16

Buck Section................................................................................ 17

LDO Section ............................................................................... 18

Supervisory Section ................................................................... 18

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

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

LDO Capacitor Selection .......................................................... 22

Supervisory Section ................................................................... 23

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

Power Dissipation/Thermal Considerations ............................. 25

Evaluation Board Schematics and Artwork............................ 27

Suggested Layout ........................................................................ 27

Bill of Materials........................................................................... 28

Application Diagram ................................................................. 28

Factory Programmable Options ................................................... 29

Outline Dimensions ....................................................................... 30

Ordering Guide .......................................................................... 30

REVISION HISTORY

9/2019—Rev. B to Rev. C

Changes to Output Capacitor Section ......................................... 22

Updated Outline Dimensions ....................................................... 30

5/2018—Rev. A to Rev. B

Updated Outline Dimensions ....................................................... 30

Changes to Ordering Guide .......................................................... 30

10/2011—Rev. 0 to Rev. A

Updated Outline Dimensions....................................................... 30

Changes to Ordering Guide .......................................................... 30

4/2011—Revision 0: Initial Version