TPS74401

SBVS066Q – DECEMBER 2005 – REVISED APRIL 2015

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Table of Contents

7.5

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

1

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

8

Application and Implementation ........................ 18

2

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

8.1

Application Information............................................ 18

3

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

8.2

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

4

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

9

Power Supply Recommendations ...................... 25

5

Pin Configuration and Functions ......................... 4

10

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

6

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

10.1

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

6.1

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

10.2

Layout Example .................................................... 26

6.2

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

10.3

Power Dissipation ................................................. 26

6.3

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

10.4

Thermal Considerations ........................................ 27

6.4

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

11

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

6.5

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

11.1

Device Support...................................................... 30

6.6

Timing Requirements ................................................ 7

11.2

Documentation Support ....................................... 30

6.7

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

11.3

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

7

Detailed Description ............................................ 13

11.4

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

7.1

Overview ................................................................. 13

11.5

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

7.2

Functional Block Diagrams ..................................... 13

12

Mechanical, Packaging, and Orderable

7.3

Feature Description................................................. 14

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

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 P (January 2015) to Revision Q

Page

•

Changed QFN to VQFN throughout document ...................................................................................................................... 1

•

Changed TPS744xx to TPS74401 throughout document ..................................................................................................... 1

•

Deleted fixed output Features bullet....................................................................................................................................... 1

•

•

Changed footnote 1 for Recommended Operating Conditions table...................................................................................... 5

•

•

•

Added Timing Requirements table ......................................................................................................................................... 7

•

Added Device Functional Modes section ............................................................................................................................. 15

•

Changed third paragraph of Dropout Voltage ...................................................................................................................... 19

•

Changed first sentence of Without an Auxiliary Bias section ............................................................................................... 25

•

Changed Power Dissipation section location; moved to after Layout Example section....................................................... 26

•

Added Development Support section ................................................................................................................................... 30

•

Added information about reference design TIDU421 and user guide SLVU143 to Related Documentation section ......... 30

Changes from Revision O (March 2013) to Revision P

Page

•

Deleted Active High Enable bullet from Features list ............................................................................................................ 1

•

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

•

Changed footnote 3c for Thermal Information table .............................................................................................................. 6

•

•

•

2

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