ADP122/ADP123

Data Sheet

Rev. E | Page 2 of 24

TABLE OF CONTENTS

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

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

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

Typical Application Circuits............................................................ 1

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

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

Recommended Specifications..................................................... 4

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

Thermal Data ................................................................................ 5

Thermal Resistance ...................................................................... 5

ESD Caution.................................................................................. 5

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

Typical Performance Characteristics ............................................. 7

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

Applications Information .............................................................. 12

Capacitor Selection .................................................................... 12

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

Enable Feature ............................................................................ 13

Current Limit and Thermal Overload Protection ................. 14

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

Junction Temperature Calculations For TSOT Package ....... 15

Junction Temperature Calculations For LFCSP Package...... 17

Printed Circuit Board Layout Considerations........................ 19

Outline Dimensions....................................................................... 20

Ordering Guide .......................................................................... 21

REVISION HISTORY

6/12—Rev. D to Rev. E

Changes to Table 3.............................................................................5

4/12—Rev. C to Rev. D

Changes to Ordering Guide ...........................................................21

4/12—Rev. B to Rev. C

Changes to Operating Ambient Temperature Range;

Table 3 .................................................................................................5

3/12—Rev. A to Rev. B

Updated Outline Dimensions .......................................................20

6/11—Rev. 0 to Rev. A

Added 6-Lead LFCSP Package .................................... Throughout

Added Figure 3 and Figure 4 (Renumbered Sequentially) ..........1

Changes to Table 4.............................................................................5

Changes to Pin Configuration and Function Descriptions

Section.................................................................................................6

Changes to Thermal Considerations Section ............................. 14

Added Junction Temperature Calculations for LFCSP Package

Section.............................................................................................. 17

Updated Outline Dimensions ...................................................... 20

Changes to Ordering Guide.......................................................... 21

10/09—Revision 0: Initial Version