Datasheet

ADP2118 Data Sheet
Rev. C | Page 2 of 24
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings ............................................................ 5
Thermal Resistance ...................................................................... 5
ESD Caution .................................................................................. 5
Pin Configuration and Function Descriptions ............................. 6
Typical Performance Characteristics ............................................. 7
Functional Block Diagram ............................................................ 13
Theory of Operation ...................................................................... 14
Control Scheme .......................................................................... 14
PWM Mode Operation .............................................................. 14
PFM Mode Operation ................................................................ 14
Slope Compensation .................................................................. 14
Enable/Shutdown ....................................................................... 14
Integrated Soft Start ................................................................... 14
Tracking ....................................................................................... 14
Oscillator and Synchronization ................................................ 15
Current Limit and Short-Circuit Protection .......................... 15
Overvoltage Protection (OVP) ................................................. 15
Undervoltage Lockout (UVLO) ............................................... 15
Thermal Shutdown .................................................................... 15
Power Good ................................................................................ 15
Applications Information .............................................................. 16
ADIsimPower Design Tool ....................................................... 16
Output Voltage Selection ........................................................... 16
Inductor Selection ...................................................................... 16
Output Capacitor Selection....................................................... 16
Input Capacitor Selection .......................................................... 17
Voltage Tracking ......................................................................... 17
Typical Application Circuits ......................................................... 18
Outline Dimensions ....................................................................... 21
Ordering Guide .......................................................................... 21
REVISION HISTORY
11/12—Rev. B to Rev. C
Changed Ordering Guide .............................................................. 22
7/12—Rev. A to Rev. B
Changes to Features Section............................................................. 1
Added ADIsimPower Design Tool Section .................................. 16
10/09—Rev. 0 to Rev. A
Changed Converter to Regulator (Throughout) .......................... 1
Changes to Applications Section .................................................... 1
7/09—Revision 0: Initial Version