ADP2114 Analog Devices, ADP2114 Datasheet - Page 2

• Manufacturer Part Number: ADP2114
• Description: Configurable, Dual 2 A/Single 4 A, Synchronous Step-Down DC-to-DC Regulator
• Manufacturer: Analog Devices

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