ADP2108

Rev. A | Page 2 of 16

TABLE OF CONTENTS

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

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

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

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

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

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

Absolute Maximum Ratings............................................................ 4

Thermal Resistance ...................................................................... 4

ESD Caution.................................................................................. 4

Pin Configuration and Function Descriptions............................. 5

Typical Performance Characteristics ............................................. 6

Theory of Operation ...................................................................... 11

Control Scheme .......................................................................... 11

PWM Mode................................................................................. 11

Power Save Mode........................................................................ 11

Enable/Shutdown ....................................................................... 11

Short-Circuit Protection............................................................ 12

Undervoltage Lockout ............................................................... 12

Thermal Protection.................................................................... 12

Soft Start ...................................................................................... 12

Current Limit .............................................................................. 12

100% Duty Operation................................................................ 12

Applications Information .............................................................. 13

External Component Selection ................................................ 13

Thermal Considerations............................................................ 14

PCB Layout Guidelines.............................................................. 14

Evaluation Board ............................................................................ 15

Outline Dimensions ....................................................................... 16

Ordering Guide .......................................................................... 16

REVISION HISTORY

12/08—Rev. 0 to Rev. A

Changes to Figure 4.......................................................................... 6

Updated Outline Dimensions ....................................................... 16

9/08—Revision 0: Initial Version