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LM46002

SNVSA13C – APRIL 2014 – REVISED APRIL 2019

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Copyright © 2014–2019, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

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

5

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

6

Specifications......................................................... 4

6.1

Absolute Maximum Ratings ...................................... 4

6.2

ESD Ratings.............................................................. 4

6.3

Recommended Operating Conditions ....................... 4

6.4

Thermal Information .................................................. 5

6.5

Electrical Characteristics........................................... 5

6.6

Timing Requirements ................................................ 6

6.7

Switching Characteristics .......................................... 7

6.8

Typical Characteristics .............................................. 8

7

Detailed Description ............................................ 14

7.1

Overview ................................................................. 14

7.2

Functional Block Diagram ....................................... 14

7.3

Feature Description................................................. 15

7.4

Device Functional Modes........................................ 23

8

Applications and Implementation ...................... 24

8.1

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

8.2

Typical Applications ................................................ 24

9

Power Supply Recommendations ...................... 40

10

Layout................................................................... 40

10.1

Layout Guidelines ................................................. 40

10.2

Layout Example .................................................... 43

11

Device and Documentation Support ................. 44

11.1

Device Support...................................................... 44

11.2

Receiving Notification of Documentation Updates 44

11.3

Community Resources.......................................... 44

11.4

Trademarks ........................................................... 44

11.5

Electrostatic Discharge Caution ............................ 44

11.6

Glossary ................................................................ 44

12

Mechanical, Packaging, and Orderable

Information ........................................................... 45

4 Revision History

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

Changes from Revision B (September 2014) to Revision C

Page

•

Added WEBENCH links and top nav icon for TI Design; made editorial edits to align with latest documentation standard . 1

•

Changed Handling Ratings to ESD Ratings ; move Storage temperature to Abs Max table................................................. 4

•

Deleted "TJ = –40°C to 85°C" row from VFB ........................................................................................................................... 6

•

Changed ISSC min from 1.45 µA to 1.17 µA and typ from 2.2 µA to 2 µA .............................................................................. 6

•

Changed RPGOOD, VEN = 3.3 V: typ from 40 Ω to 69 Ω and max from 125 Ω to 150 Ω .......................................................... 6

•

Changed RPGOOD, VEN = 0: typ from 60 Ω to 150 Ω and max from 150 Ω to 350 Ω............................................................... 6

•

Changed Equation 16 to add "/ 2" ........................................................................................................................................ 28

•

Added Receiving Notification of Documentation Updates and Community Resources ....................................................... 44

Changes from Revision A (April 2014) to Revision B

Page

•

Changed this graph .............................................................................................................................................................. 12

•

Added this equation .............................................................................................................................................................. 30

•

Added this equation .............................................................................................................................................................. 30

•

Changed this graph .............................................................................................................................................................. 31

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Changed this graph .............................................................................................................................................................. 35

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Changed this graph .............................................................................................................................................................. 35

•

Changed this graph .............................................................................................................................................................. 36

•

Changed this graph .............................................................................................................................................................. 43

Changes from Original (April 2014) to Revision A

Page

•

Changed device from Product Preview to Production Data .................................................................................................. 1