LM5145 datasheet(2/69 Pages) TI

2 / 69 page

Table of Contents

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

2 Applications..................................................................... 1

3 Description.......................................................................1

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

5 Description (continued).................................................. 3

6 Device Comparison Table...............................................3

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

8 Specifications.................................................................. 7

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

8.2 ESD Ratings............................................................... 7

8.3 Recommended Operating Conditions.........................8

8.4 Thermal Information....................................................8

8.5 Electrical Characteristics.............................................9

8.6 Switching Characteristics..........................................12

8.7 Typical Characteristics.............................................. 13

9 Detailed Description......................................................18

9.1 Overview................................................................... 18

9.2 Functional Block Diagram......................................... 19

9.3 Feature Description...................................................20

9.4 Device Functional Modes..........................................32

10 Application and Implementation................................ 33

10.1 Application Information........................................... 33

10.2 Typical Applications................................................ 40

11 Power Supply Recommendations..............................53

12 Layout...........................................................................54

12.1 Layout Guidelines................................................... 54

12.2 Layout Example...................................................... 57

13 Device and Documentation Support..........................59

13.1 Device Support....................................................... 59

13.2 Documentation Support.......................................... 60

13.3 Receiving Notification of Documentation Updates..61

13.4 Support Resources................................................. 61

13.5 Trademarks.............................................................61

13.6 Electrostatic Discharge Caution..............................61

13.7 Glossary..................................................................61

14 Mechanical, Packaging, and Orderable

Information.................................................................... 61

4 Revision History

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

DATE

REVISION

NOTES

March 2022

Initial release

LM25143

SNVSC10 – MARCH 2022

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