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LM3670

SNVS250F – NOVEMBER 2004 – REVISED FEBRUARY 2016

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Copyright © 2004–2016, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

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

5

Connection Diagram.............................................. 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 .................................................. 4

6.5

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

6.6

Typical Characteristics .............................................. 7

7

Detailed Description ............................................ 10

7.1

Overview ................................................................. 10

7.2

Functional Block Diagram ....................................... 10

7.3

Feature Description................................................. 11

7.4

Device Functional Modes........................................ 12

8

Application and Implementation ........................ 14

8.1

Application Information............................................ 14

8.2

Typical Application ................................................. 14

9

Power Supply Recommendations ...................... 18

10

Layout................................................................... 19

10.1

Layout Guidelines ................................................. 19

10.2

Layout Example .................................................... 20

11

Device and Documentation Support ................. 21

11.1

Device Support .................................................... 21

11.2

Community Resources.......................................... 21

11.3

Trademarks ........................................................... 21

11.4

Electrostatic Discharge Caution ............................ 21

11.5

Glossary ................................................................ 21

12

Mechanical, Packaging, and Orderable

Information ........................................................... 21

4 Revision History

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

Changes from Revision E (February 2013) to Revision F

Page

•

Changed "(0.7V min) to "0.7 V to 2.5 V" ................................................................................................................................ 1

•

Added Device Information and Pin Configuration and Functions sections, ESD Ratings and Thermal Information

tables, Feature Description, Device Functional Modes, Application and Implementation, Power Supply

Recommendations, Layout, Device and Documentation Support, and Mechanical, Packaging, and Orderable

Information sections................................................................................................................................................................ 1

•

Deleted phone and fax numbers of manufacturers from suggested inductors table ........................................................... 15

•

Deleted phone and fax numbers of manufacturers from suggested capacitors table ......................................................... 16

•

Deleted rest of text from paragraph beginning "For any output voltages...."........................................................................ 17

•

Deleted row beginning with "1.24... "from Table 3 .............................................................................................................. 18

Changes from Revision D (February 2013) to Revision E

Page

•

Changed layout of National Data Sheet to TI format ........................................................................................................... 19