ADP2114
TABLE OF CONTENTS
Features .............................................................................................. 1
Maximum Duty Cycle Operation ............................................ 23
Synchronization.......................................................................... 23
Converter Configuration............................................................... 24
Selecting the Output Voltage .................................................... 24
Setting the Oscillator Frequency.............................................. 25
Synchronization and CLKOUT................................................ 25
Operation Mode Configuration............................................... 26
External Components Selection................................................... 27
Input Capacitor Selection.......................................................... 27
VDD RC Filter............................................................................ 27
Inductor Selection...................................................................... 27
Output Capacitor Selection....................................................... 28
Control Loop Compensation.................................................... 28
Design Example.............................................................................. 30
Channel 1 Configuration and Components Selection.......... 30
Channel 2 Configuration and Components Selection.......... 31
System Configuration................................................................ 32
Application Circuits ....................................................................... 33
Power Dissipation, Thermal Considerations.............................. 35
Circuit Board Layout Recommendations ................................... 36
Outline Dimensions....................................................................... 37
Ordering Guide .......................................................................... 37
Applications....................................................................................... 1
General Description......................................................................... 1
Typical Application Circuit ............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 5
ESD Caution.................................................................................. 5
Pin Configuration and Function Descriptions............................. 6
Typical Performance Characteristics ............................................. 8
Supply Current............................................................................ 13
Load Transient Response........................................................... 14
Bode Plots.................................................................................... 19
Simplified Block Diagram ............................................................. 20
Theory of Operation ...................................................................... 21
Control Architecture.................................................................. 21
Undervoltage Lockout (UVLO) ............................................... 21
Enable/Disable Control ............................................................. 21
Soft Start ...................................................................................... 21
Power Good................................................................................. 22
Pulse Skip Mode ......................................................................... 22
Hiccup Mode Current Limit..................................................... 23
Thermal Overload Protection................................................... 23
REVISION HISTORY
7/09—Revision 0: Initial Version
Rev. 0 | Page 2 of 40
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