ADP2311

Data Sheet

Rev. B | Page 2 of 20

TABLE OF CONTENTS

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

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

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

General Description ......................................................................... 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 ...................................................................... 13

Control Scheme .......................................................................... 13

Precision Enable/Shutdown ...................................................... 13

Internal Regulator (VREG)....................................................... 13

Bootstrap Circuitry .................................................................... 13

Soft Start ...................................................................................... 13

Peak Current-Limit and Short-Circuit Protection ................ 13

Power-On Reset (POR) ............................................................. 13

TIMER Pin Configuration........................................................ 14

Power Fail Comparator.............................................................. 15

Voltage Monitor Comparator (VM2)...................................... 15

Watchdog Timer......................................................................... 15

Power-Up and Power-Down Sequence ................................... 15

Overvoltage Protection (OVP)................................................. 15

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

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

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

Input Capacitor Selection.......................................................... 17

Output Voltage Setting .............................................................. 17

Inductor Selection ...................................................................... 17

Output Capacitor Selection....................................................... 18

Application Circuit......................................................................... 19

Outline Dimensions....................................................................... 20

Ordering Guide .......................................................................... 20

REVISION HISTORY

8/2017—Rev. A to Rev. B

Updated Outline Dimensions....................................................... 20

Changes to Ordering Guide .......................................................... 20

3/2014—Revision A: Initial Version