ADP5070

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

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

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

Changes to Figure 29 Caption and Figure 32 Caption .............. 11

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

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

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

Changes to Output Capacitors Section, Soft Start Resistor Section,

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

Changes to Figure 50 Caption....................................................... 26

Added Figure 51.............................................................................. 26

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

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

2/15—Revision 0: Initial Version