ADP5014

Data Sheet

Rev. A | Page 2 of 34

TABLE OF CONTENTS

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

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

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

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

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

Detailed Functional Block Diagram .............................................. 3

Specifications..................................................................................... 4

Buck Regulator Specifications .................................................... 5

Absolute Maximum Ratings............................................................ 7

Thermal Resistance ...................................................................... 7

ESD Caution.................................................................................. 7

Pin Configuration and Function Descriptions............................. 8

Typical Performance Characteristics ........................................... 10

Theory of Operation ...................................................................... 14

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

Low Noise Architecture............................................................. 14

Internal Reference (VREF)........................................................ 14

Adjustable Output Voltage ........................................................ 14

Function Configurations (CFG1 and CFG2) ......................... 15

Parallel Operation....................................................................... 16

Manual/Sequence Mode............................................................ 16

General Purpose Input/Output (GPIO).................................. 18

Oscillator ..................................................................................... 18

Synchronization Input/Output ................................................. 19

Power-Good Function ............................................................... 19

UV Comparator (Sequence Mode Only) ................................ 19

Soft Start ...................................................................................... 20

Startup with Precharged Output .............................................. 20

Current-Limit Protection .......................................................... 20

Frequency Fold Back.................................................................. 20

Short-Circuit Protection (SCP) ................................................ 20

Overvoltage Protection.............................................................. 20

Undervoltage Lockout ............................................................... 20

Active Output Discharge Switch .............................................. 21

Thermal Shutdown .................................................................... 21

Applications Information .............................................................. 22

ADIsimPower Design Tool ....................................................... 22

Programming the Output Voltage ........................................... 22

Voltage Conversion Limitations............................................... 22

Current-Limit Setting ................................................................ 23

Soft Start Setting......................................................................... 23

Inductor Selection...................................................................... 23

Output Capacitor Selection....................................................... 24

Input Capacitor Selection.......................................................... 24

Programming the UVLO Input................................................ 24

Compensation Components Design ....................................... 24

Power Dissipation....................................................................... 25

Junction Temperature................................................................ 26

Design Examples ............................................................................ 27

Setting the Switching Frequency.............................................. 27

Setting the Output Voltage........................................................ 27

Setting the Configuations (CFG1 and CFG2)........................ 27

Selecting the Inductor................................................................ 27

Selecting the Output Capacitor ................................................ 28

Designing the Compensation Network................................... 28

Low Noise Output Design......................................................... 28

PCB Layout Recommendations.................................................... 30

Typical Application Circuits ......................................................... 31

Factory Programmable Options................................................... 33

Factory Default Options............................................................ 33

Outline Dimensions....................................................................... 34

Ordering Guide .......................................................................... 34

REVISION HISTORY

8/2019—Rev. 0 to Rev. A

Changes to Parallel Operation Section........................................ 16

Updated Outline Dimensions....................................................... 34

6/2017—Revision 0: Initial Version