Datasheet

ADP1614 Data Sheet
Rev. A | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Typical Applications Circuit ............................................................ 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
Theory of Operation ...................................................................... 12
Current-Mode PWM Operation .............................................. 13
Adjustable Current Limit .......................................................... 13
Frequency Selection ................................................................... 13
Soft Start ...................................................................................... 13
Thermal Shutdown (TSD) ........................................................ 13
Undervoltage Lockout (UVLO) ............................................... 13
Shutdown Mode ......................................................................... 13
Applications Information .............................................................. 14
ADIsimPower Design Tool ....................................................... 14
Setting the Output Voltage ........................................................ 14
Inductor Selection ...................................................................... 14
Choosing the Input and Output Capacitors ........................... 15
Diode Selection ........................................................................... 15
Loop Compensation .................................................................. 15
Soft Start Capacitor .................................................................... 16
PCB Layout Guidelines .................................................................. 17
Outline Dimensions ....................................................................... 18
Ordering Guide .......................................................................... 18
REVISION HISTORY
6/13—Rev. 0 to Rev. A
Changes to Features Section, General Description Section, and
Figure 1 .............................................................................................. 1
Added Figure 2; Renumbered Sequentially .................................. 1
Changes to Table 1 ............................................................................ 3
Added FREQ Pin to Table 2 ............................................................ 5
Changes to Pin 9 ............................................................................... 6
Added Figure 26 and Figure 27..................................................... 10
Added Figure 28 to Figure 31........................................................ 11
Changes to Theory of Operation Section and Figure 32 ........... 12
Changes to Adjustable Current Limit Section and Frequency
Selection Section ............................................................................. 13
Changes to Figure 35 and Figure 36 Captions ............................. 17
Updated Outline Dimensions ....................................................... 18
Changes to Ordering Guide .......................................................... 18
6/12—Revision 0: Initial Version