ADP5071

Data Sheet

Rev. A | Page 2 of 27

TABLE OF CONTENTS

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

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

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

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

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

Specifications..................................................................................... 3

Absolute Maximum Ratings............................................................ 5

Thermal Resistance ...................................................................... 5

ESD Caution.................................................................................. 5

Pin Configurations and Function Descriptions ........................... 6

Typical Performance Characteristics ............................................. 8

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

PWM Mode................................................................................. 14

PSM Mode................................................................................... 14

Undervoltage Lockout (UVLO) ............................................... 14

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

Internal Regulators..................................................................... 14

Precision Enabling...................................................................... 15

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

Slew Rate Control....................................................................... 15

Current-Limit Protection............................................................ 15

Overvoltage Protection.............................................................. 15

Thermal Shutdown .................................................................... 15

Start-Up Sequence...................................................................... 15

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

ADIsimPower Design Tool ....................................................... 17

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

Loop Compensation .................................................................. 20

Common Applications .............................................................. 22

Super Low Noise With Optional LDOs................................... 24

SEPIC Step-Up/Step-Down Operation ................................... 25

Layout Considerations............................................................... 26

Outline Dimensions....................................................................... 27

Ordering Guide .......................................................................... 27

REVISION HISTORY

6/15—Rev. 0 to Rev. A

Added 20-Lead TSSOP ......................................................Universal

Change to Pull-Down Resistance Parameter, Table 2.................. 3

Changes to Table 3 and Table 4....................................................... 5

Added Figure 3, Renumbered Sequentially .................................. 6

Changes to Figure 37 Caption to Figure 39 Caption ................. 13

Changes to Internal Regulators Section ...................................... 14

Change to Soft Start Section.......................................................... 15

Changes to Component Selection Section.................................. 17

Changes to Output Capacitors Section, Soft Start Resistor Section,

and Diodes Section......................................................................... 18

Changes to Figure 52 Caption....................................................... 26

Added Figure 53.............................................................................. 26

Updated Outline Dimensions....................................................... 27

Changes to Ordering Guide .......................................................... 27

2/15—Revision 0: Initial Version