ADP5302

Data Sheet

Rev. B | Page 2 of 22

TABLE OF CONTENTS

Features .............................................................................................. 1

 

Applications....................................................................................... 1

 

Typical Application Circuit ............................................................. 1

 

General Description ......................................................................... 1

 

Revision History ............................................................................... 2

 

Detailed 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 ...................................................................... 14

 

Buck Regulator Operational Modes......................................... 14

 

Oscillator and Synchronization ................................................ 14

 

Adjustable and Fixed Output Voltages .................................... 14

 

Undervoltage Lockout (UVLO) ............................................... 15

 

Enable/Disable ............................................................................ 15

 

Current Limit .............................................................................. 15

 

Short-Circuit Protection............................................................ 15

 

Soft Start ...................................................................................... 15

 

Startup with Precharged Output .............................................. 15

 

100% Duty Operation................................................................ 15

 

Active Discharge......................................................................... 15

 

VINOK Function........................................................................ 15

 

STOP Switching.......................................................................... 16

 

Thermal Shutdown .................................................................... 16

 

Applications Information .............................................................. 17

 

External Component Selection ................................................ 17

 

Selecting the Inductor................................................................ 17

 

Output Capacitor........................................................................ 17

 

Input Capacitor........................................................................... 18

 

Efficiency..................................................................................... 18

 

Printed Circuit Board Layout Recommendations ................. 19

 

Typical Application Circuits ......................................................... 20

 

Factory Programmable Options ................................................... 21

 

Outline Dimensions ....................................................................... 22

 

Ordering Guide .......................................................................... 22

 

REVISION HISTORY

9/2019—Rev. A to Rev. B

Changes to Adjustable and Fixed Output Voltages Section........... 15

Changes to Table 8, Table 9, Table 10, and Table 11 .................. 21

Updated Outline Dimensions ....................................................... 22

Changes to Ordering Guide .......................................................... 22

6/2016—Rev. 0 to Rev. A

Changes to Features Section and General Description Section....... 1

Change to SYNC Clock Range Parameter, Table 1 ...................... 4

Change to Table 4 ............................................................................. 7

Change to Oscillator and Synchronization Section ................... 14

9/2015—Revision 0: Initial Version