Datasheet

ADP2384 Data Sheet
Rev. 0 | Page 2 of 24
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Typical Applications Circuit ............................................................ 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 ............................................................ 11
Theory of Operation ...................................................................... 12
Control Scheme .......................................................................... 12
Precision Enable/Shutdown ...................................................... 12
Internal Regulator (VREG) ....................................................... 12
Bootstrap Circuitry .................................................................... 12
Oscillator ..................................................................................... 12
Synchronization .......................................................................... 12
Soft Start ...................................................................................... 13
Power Good ................................................................................. 13
Peak Current-Limit and Short-Circuit Protection ................. 13
Overvoltage Protection (OVP) ................................................. 14
Undervoltage Lockout (UVLO) ............................................... 14
Thermal Shutdown .................................................................... 14
Applications Information .............................................................. 15
Input Capacitor Selection .......................................................... 15
Output Voltage Setting .............................................................. 15
Voltage Conversion Limitations ............................................... 15
Inductor Selection ...................................................................... 15
Output Capacitor Selection ....................................................... 16
Programming the Input Voltage UVLO .................................. 17
Compensation Design ............................................................... 17
ADIsimPower Design Tool ....................................................... 17
Design Example .............................................................................. 18
Output Voltage Setting .............................................................. 18
Frequency Setting ....................................................................... 18
Inductor Selection ...................................................................... 18
Output Capacitor Selection ....................................................... 19
Compensation Components ..................................................... 19
Soft Start Time Program ........................................................... 19
Input Capacitor Selection .......................................................... 19
Recommended External Components .................................... 20
Circuit Board Layout Recommendations ................................... 21
Typical Applications Circuits ........................................................ 22
Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 23
REVISION HISTORY
8/12—Revision 0: Initial Version