Datasheet

ADP124/ADP125 Data Sheet
Rev. C | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Typical Application Circuits ............................................................ 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Recommended Capacitor 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 ......................................... 15
Printed Circuit Board Layout Considerations........................ 16
Outline Dimensions ....................................................................... 17
Ordering Guide .......................................................................... 18
REVISION HISTORY
6/12—Rev. B to Rev. C
Changes to Table 3 ............................................................................. 5
Updated Outline Dimensions ........................................................ 17
4/12—Rev. A to Rev. B
Updated Outline Dimensions ........................................................ 17
Changes to Ordering Guide ........................................................... 18
9/10—Rev. 0 to Rev. A
Added 8-Lead LFCSP Package ..................................... Throughout
Added Figure 4 and Figure 6 (Renumbered Sequentially) ......... 6
Changes to Thermal Conditions Section and Table 6 ............... 14
Added Table 7 .................................................................................. 14
Changes to Junction Temperature Calculations Section ........... 15
Added Figure 44 .............................................................................. 16
Updated Outline Dimensions ....................................................... 17
Changes to Ordering Guide .......................................................... 18
12/09—Revision 0: Initial Version