ADP2165/ADP2166
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Undervoltage Lockout ............................................................... 13
Thermal Shutdown .................................................................... 13
Applications Information .............................................................. 14
ADIsimPower Design Tool ....................................................... 14
Input Capacitor Selection.......................................................... 14
Output Voltage Setting .............................................................. 14
Voltage Conversion Limitations............................................... 14
Inductor Selection...................................................................... 15
Output Capacitor Selection....................................................... 15
Compensation Design ............................................................... 16
Design Example.............................................................................. 17
Output Voltage Setting .............................................................. 17
Frequency Setting....................................................................... 17
Inductor Selection...................................................................... 17
Output Capacitor Selection....................................................... 18
Compensation Components..................................................... 18
Soft Start Time Program ........................................................... 18
Input Capacitor Selection.......................................................... 18
Recommended External Components .................................... 19
Printed Circuit Board Layout Recommendations ..................... 20
Reference Designs .......................................................................... 21
Outline Dimensions....................................................................... 23
Ordering Guide .......................................................................... 23
Applications....................................................................................... 1
General Description......................................................................... 1
Typical Application Circuit ............................................................. 1
Revision History ............................................................................... 2
Functional Block Diagram .............................................................. 3
Specifications..................................................................................... 4
Absolute Maximum Ratings............................................................ 6
Thermal Resistance ...................................................................... 6
ESD Caution.................................................................................. 6
Pin Configuration and Function Descriptions............................. 7
Typical Performance Characteristics ............................................. 8
Theory of Operation ...................................................................... 12
Control Scheme .......................................................................... 12
PWM Mode................................................................................. 12
Enable/Shutdown ....................................................................... 12
Internal Regulator (VREG)....................................................... 12
Bootstrap Circuitry .................................................................... 12
Oscillator and Synchronization................................................ 12
Soft Start ...................................................................................... 13
Tracking ....................................................................................... 13
Power-Good (PGOOD)............................................................. 13
Peak Current-Limit and Short-Circuit Protection................. 13
Overvoltage Protection.............................................................. 13
REVISION HISTORY
8/2017—Rev. A to Rev. B
Changed LFCSP_WQ to LFCSP ..........................................Throughout
Updated Outline Dimensions .................................................................23
Changes to Ordering Guide.....................................................................23
9/2016—Rev. 0 to Rev. A
Change to Compensation Components Section ........................ 18
Change to Table 8 ........................................................................... 19
8/2014—Revision 0: Initial Version
Rev. B | Page 2 of 23