Datasheet

ADP2108 Data Sheet
Rev. G | Page 2 of 20
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
ADIsimPower Design Tool ....................................................... 13
External Component Selection ................................................ 13
Thermal Considerations ............................................................ 14
PCB Layout Guidelines.............................................................. 14
Evaluation Board ............................................................................ 15
Outline Dimensions ....................................................................... 16
Ordering Guide .......................................................................... 17
REVISION HISTORY
6/12—Rev. F to Rev. G
Change to Features Section ............................................................. 1
Added ADIsimPower Design Tool Section ................................. 13
Updated Outline Dimensions ....................................................... 16
1/12—Rev. E to Rev. F
Change to Table 3................................................................................... 4
Changes to Output Capacitor Section ......................................... 13
10/10—Rev. D to Rev. E
Changed −40°C to +85°C to −40°C to +125°C Throughout ......... 3
Changes to Ordering Guide .......................................................... 17
1/10—Rev. C to Rev. D
Changes to Ordering Guide .......................................................... 17
4/09—Rev. B to Rev. C
Changes to General Description Section ...................................... 1
2/09—Rev. A to Rev. B
Added 5-Lead TSOT Package ........................................... Universal
Changes to Absolute Maximum Ratings Section ......................... 4
Updated Outline Dimensions ....................................................... 16
Changes to Ordering Guide .......................................................... 17
11/08—Rev. 0 to Rev. A
Changes to Figure 4 .......................................................................... 6
Updated Outline Dimensions ....................................................... 16
9/08—Revision 0: Initial Version