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LMR23630

SNVSAH2C – DECEMBER 2015 – REVISED JUNE 2017

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Copyright © 2015–2017, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

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

5

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

6

Pin Configuration and Functions ......................... 3

7

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

7.1

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

7.2

ESD Ratings.............................................................. 5

7.3

Recommended Operating Conditions ...................... 5

7.4

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

7.5

Electrical Characteristics........................................... 6

7.6

Timing Requirements ................................................ 8

7.7

Switching Characteristics .......................................... 8

7.8

Typical Characteristics .............................................. 9

8

Detailed Description ............................................ 11

8.1

Overview ................................................................. 11

8.2

Functional Block Diagram ....................................... 11

8.3

Feature Description................................................. 12

8.4

Device Functional Modes........................................ 19

9

Application and Implementation ........................ 20

9.1

Application Information............................................ 20

9.2

Typical Applications ................................................ 20

10

Power Supply Recommendations ..................... 26

11

Layout................................................................... 26

11.1

Layout Guidelines ................................................. 26

11.2

Layout Example .................................................... 27

11.3

Compact Layout for EMI Reduction ...................... 28

11.4

Ground Plane and Thermal Considerations.......... 28

11.5

Feedback Resistors .............................................. 29

12

Device and Documentation Support ................. 30

12.1

Custom Design With WEBENCH® Tools ............. 30

12.2

Receiving Notification of Documentation Updates 30

12.3

Community Resources.......................................... 30

12.4

Trademarks ........................................................... 30

12.5

Electrostatic Discharge Caution ............................ 30

12.6

Glossary ................................................................ 30

13

Mechanical, Packaging, and Orderable

Information ........................................................... 30

4 Revision History

Changes from Revision B (April 2017) to Revision C

Page

•

Deleted Deleted "Automotive Battery Regulation" and reworded Applications ..................................................................... 1

•

Added WSON Package and Options .................................................................................................................................... 1

•

Added Device Comparison Table .......................................................................................................................................... 3

•

Change EN Abs Max to EN/SYNC Abs Max ......................................................................................................................... 5

•

Updating ESD Ratings to include HSOIC and WSON .......................................................................................................... 5

•

•

clarified equations Equation 23 and Equation 24 ................................................................................................................. 28

Changes from Revision A (July 2016) to Revision B

Page

•

Changed spec from 6.0 to 6.2 for max under Current Limit ................................................................................................... 7

•

Changed spec from 4.2 to 4.6 for max under Current Limit ................................................................................................... 7

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

Changes from Original (December 2015) to Revision A

Page

•

Changed from Product Preview to Production Data with all the remaining sections added. ................................................. 1