Datasheet
ADP2119/ADP2120 Data Sheet
Rev. A | Page 2 of 24
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Typical Application Circuit ............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 5
Thermal Resistance ...................................................................... 5
Boundary Condition .................................................................... 5
ESD Caution .................................................................................. 5
Pin Configuration and Function Descriptions ............................. 6
Typical Performance Characteristics ............................................. 7
Functional Block Diagram ............................................................ 15
Theory of Operation ...................................................................... 16
Control Scheme .......................................................................... 16
PWM Mode Operation .............................................................. 16
PFM Mode Operation ................................................................ 16
Slope Compensation .................................................................. 16
Enable/Shutdown ....................................................................... 16
Integrated Soft Start ................................................................... 16
Tracking ....................................................................................... 17
Oscillator and Synchronization ................................................ 17
Current Limit and Short-Circuit Protection .............................. 17
Overvoltage Protection (OVP) ................................................. 17
Undervoltage Lockout (UVLO) ............................................... 17
Thermal Shutdown .................................................................... 17
Power Good (PGOOD) ............................................................. 17
Applications Information .............................................................. 18
ADIsimPower Design Tool ....................................................... 18
Output Voltage Selection ........................................................... 18
Inductor Selection ...................................................................... 18
Output Capacitor Selection....................................................... 18
Input Capacitor Selection .......................................................... 19
Voltage Tracking ......................................................................... 19
Typical Application Circuits ......................................................... 20
Outline Dimensions ....................................................................... 22
Ordering Guide .......................................................................... 22
REVISION HISTORY
8/12—Rev. 0 to Rev. A
Change to Features Section ............................................................. 1
Added ADIsimPower Design Tool Section ................................. 18
Updated Outline Dimensions ....................................................... 22
Changes to Ordering Guide .......................................................... 22
6/10—Revision 0: Initial Version