LP38691, LP38693, LP38691-Q1, LP38693-Q1

SNVS321N – JANUARY 2005 – REVISED MARCH 2015

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Table of Contents

8.3

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

1

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

8.4

Device Functional Modes........................................ 13

2

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

9

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

3

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

9.1

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

4

Typical Application Circuits ................................. 1

9.2

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

5

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

10

Power Supply Recommendations ..................... 19

6

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

11

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

7

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

11.1

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

7.1

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

11.2

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

7.2

ESD Ratings: LP38691 and LP38693....................... 4

12

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

7.3

ESD Ratings: LP38691-Q1 and LP38693-Q1........... 4

12.1

Documentation Support ........................................ 21

7.4

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

12.2

Related Links ........................................................ 21

7.5

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

12.3

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

7.6

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

12.4

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

7.7

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

12.5

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

8

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

13

Mechanical, Packaging, and Orderable

8.1

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

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

8.2

Functional Block Diagrams ..................................... 11

5 Revision History

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

Changes from Revision M (February 2015) to Revision N

Page

•

Added "Cout = xx pF" to "Cout = µF" for Figures 4 through 6 in Typical Characteristics ...................................................... 1

Changes from Revision L (December 2014) to Revision M

Page

•

Changed wording of Description and added one item to Features; update Vin, Vout and Ven pin names to IN, OUT,

and EN in text and graphics .................................................................................................................................................. 1

•

Changed "PFM" to 'TO-252" .................................................................................................................................................. 4

•

Changed Handling Ratings to ESD Ratings format ............................................................................................................... 4

Changes from Revision K (April 2013) to Revision L

Page

•

Added Handling Rating table, Feature Description section, Device Functional Modes, Application and

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

Support section, and Mechanical, Packaging, and Orderable Information section; update thermal values .......................... 1

Changes from Revision J (April 2013) to Revision K

Page

•

Changed layout of National Data Sheet to TI format ........................................................................................................... 18

2

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