2

LM5122, LM5122-Q1

SNVS954G – FEBRUARY 2013 – REVISED MAY 2016

www.ti.com

Product Folder Links: LM5122 LM5122-Q1

Submit Documentation Feedback

Copyright © 2013–2016, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

Description ............................................................. 1

4

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

5

Pin Configuration and Functions ......................... 4

6

Specifications......................................................... 5

6.1

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

6.2

ESD Ratings: LM5122 .............................................. 6

6.3

ESD Ratings: LM5122-Q1 ........................................ 6

6.4

Recommended Operating Conditions ....................... 6

6.5

Thermal Information .................................................. 6

6.6

Electrical Characteristics........................................... 7

6.7

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

7

Detailed Description ............................................ 13

7.1

Overview ................................................................. 13

7.2

Functional Block Diagram ....................................... 13

7.3

Feature Description................................................. 14

7.4

Device Functional Modes........................................ 21

8

Application and Implementation ........................ 24

8.1

Application Information............................................ 24

8.2

Typical Application .................................................. 34

9

Power Supply Recommendations ...................... 42

10

Layout................................................................... 42

10.1

Layout Guidelines ................................................. 42

10.2

Layout Example .................................................... 42

11

Device and Documentation Support ................. 43

11.1

Related Links ........................................................ 43

11.2

Community Resources.......................................... 43

11.3

Trademarks ........................................................... 43

11.4

Electrostatic Discharge Caution ............................ 43

11.5

Glossary ................................................................ 43

12

Mechanical, Packaging, and Orderable

Information ........................................................... 43

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision F (May 2015) to Revision G

Page

•

Added Automotive ESD feature.............................................................................................................................................. 1

•

Added paragraph and second equation .............................................................................................................................. 21

•

Changed equation ............................................................................................................................................................... 21

Changes from Revision E (December 2014) to Revision F

Page

•

Changed Handling Ratings to ESD Ratings and moved Storage temperature to Absolute Max Ratings ............................ 6

•

Changed ESD Ratings from kV to V ...................................................................................................................................... 6

•

•

Changes from Revision D (September 2013) to Revision E

Page

•

Added Pin Configuration and Functions section, Handling Rating table, Feature Description section, Device

Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout

section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information

section ................................................................................................................................................................................... 1

Changes from Revision C (August, 2013) to Revision D

Page

•

Changed 5 k

Ω to 20 kΩ.......................................................................................................................................................... 8

•

Changes from Revision B (May, 2013) to Revision C

Page

•

Deleted Package Addendum ................................................................................................................................................ 42