Data Sheet

ADPL20502

analog.com

Rev 0

2 of 27

TABLE OF CONTENTS

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

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

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

Simplified Application Diagram............................................1

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

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

Absolute Maximum Ratings ..................................................5

Pin Configurations and Function Descriptions ....................6

Pin Configurations ............................................................6

Pin Descriptions................................................................7

Typical Operating Characteristics ........................................8

FUNCTIONAL DIAGRAMS .....................................................14

Detailed Description ...........................................................15

Control Scheme ..............................................................15

Output Voltage Selection ...............................................17

Fixed-Output Voltage Version........................................ 18

Features.......................................................................... 18

Enable ........................................................................ 18

Soft-Start Control ...................................................... 18

Short-Circuit Protection ............................................ 19

Thermal Shutdown .................................................... 19

Design Procedure........................................................... 20

Inductor Selection ..................................................... 20

Input Capacitor .......................................................... 20

Output Capacitor ....................................................... 20

PCB Layout Guidelines .............................................. 20

Thermal Considerations ............................................ 21

TYPICAL APPLICATION CIRCUIT ......................................... 22

Outline Dimensions ............................................................ 23

Ordering GUIDE................................................................... 26

REVISION HISTORY

REVISION

NUMBER

REVISION

DATE

DESCRIPTION

PAGES

CHANGED

0

12/23

Initial Release

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