ADM7172

Data Sheet

Rev. C | Page 2 of 23

TABLE OF CONTENTS

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

 

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

 

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

 

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

 

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

 

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

 

Input and Output Capacitor, Recommended Specifications.. 4

 

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

 

Thermal Data ................................................................................ 5

 

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

 

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

 

Pin Configuration and Function Descriptions............................. 6

 

Typical Performance Characteristics ............................................. 7

 

Theory of Operation ...................................................................... 16

 

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

 

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

 

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

 

Programmable Precision Enable .............................................. 18

 

Undervoltage Lockout ............................................................... 18

 

Soft Start ...................................................................................... 18

 

Noise Reduction of the ADM7172 in Adjustable Mode ....... 19

 

Effect of Noise Reduction on Start-Up Time ......................... 19

 

Current-Limit and Thermal Overload Protection................. 20

 

Thermal Considerations............................................................ 20

 

Typical Applications Circuits.................................................... 21

 

Printed Circuit Board Layout Considerations............................ 22

 

Outline Dimensions ....................................................................... 23

 

Ordering Guide .......................................................................... 23

 

REVISION HISTORY

8/15—Rev. B to Rev. C

Change to Soft Start Section ......................................................... 19

Added Effect of Noise Reduction on Start-Up Time Section... 19

12/14—Rev. A to Rev. B

Changes to Figure 2.......................................................................... 1

Changes to Figure 48 to Figure 51................................................ 14

Changes to Figure 52 to Figure 55................................................ 15

Changes to Figure 58...................................................................... 17

8/14—Rev. 0 to Rev. A

Changes to Ordering Guide .......................................................... 23

7/14—Revision 0: Initial Version