LM3279

SNVS970C – MARCH 2013 – REVISED OCTOBER 2014

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Table of Contents

7.5

Programming........................................................... 16

1

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

7.6

Registers ................................................................. 19

2

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

8

Application and Implementation ........................ 21

3

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

8.1

Application Information............................................ 21

4

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

8.2

Typical Application ................................................. 21

5

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

9

Power Supply Recommendations ...................... 24

6

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

10

Layout................................................................... 25

6.1

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

10.1

Layout Guidelines ................................................. 25

6.2

Handling Ratings ...................................................... 4

10.2

Layout Examples................................................... 26

6.3

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

10.3

DSBGA Package Assembly And Use ................... 30

6.4

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

10.4

Manufacturing Considerations .............................. 30

6.5

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

11

Device and Documentation Support ................. 31

6.6

System Characteristics ............................................ 6

11.1

Device Support .................................................... 31

6.7

System Characteristics Recommended Capacitance

Specifications ............................................................. 7

11.2

Documentation Support ....................................... 31

6.8

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

11.3

Trademarks ........................................................... 31

11.4

Electrostatic Discharge Caution ............................ 31

7

Detailed Description ............................................ 12

11.5

Glossary ................................................................ 31

7.1

Overview ................................................................. 12

7.2

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

12

Mechanical, Packaging, and Orderable

Information ........................................................... 31

7.3

Feature Description................................................. 13

7.4

Device Functional Modes........................................ 15

4 Revision History

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

Changes from Revision B (November 2013) to Revision C

Page

•

Added Device Information and Handling Rating tables, Feature Description, Device Functional Modes, Application

and Implementation, Power Supply Recommendations, Layout, Device and Documentation Support, and

Mechanical, Packaging, and Orderable Information sections; moved some curves to Application Curves section .............. 1

Changes from Revision A (May 2013) to Revision B

Page

•

Changed Analog control 0.6V to 0.5V .................................................................................................................................... 1

•

Changed 0.2V

≤ VCON ≤ 1.4V to 0.167V ≤ VCON ≤ 1.4V .................................................................................................... 6

•

Changed 0.2 V to 0.167 V ...................................................................................................................................................... 6

•

Changed 0.6 V to 3.4 V to 1.6 V to 3.4 V............................................................................................................................... 7

•

Changed 200 from max. to typ. .............................................................................................................................................. 7

•

Changed 0.2V (min.) to 1.4V (max. typ.) to 0.167V (min.) to 1.4V (max. typ.); from 0.6V to 4.2V output to from 0.5V

to 4.2V output ....................................................................................................................................................................... 14

•

Added (default) ..................................................................................................................................................................... 19

•

Added (default) ..................................................................................................................................................................... 19

2

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