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TPS54821

SLVSB14B – OCTOBER 2011 – REVISED FEBRUARY 2016

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Copyright © 2011–2016, 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

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

7

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

7.1

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

7.2

Functional Block Diagram ....................................... 11

7.3

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

7.4

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

8

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

8.1

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

8.2

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

9

Power Supply Recommendations ...................... 29

10

Layout................................................................... 30

10.1

PCB Layout Guidelines ......................................... 30

10.2

Layout Example .................................................... 31

11

Device and Documentation Support ................. 33

11.1

Trademarks ........................................................... 33

11.2

Electrostatic Discharge Caution ............................ 33

11.3

Glossary ................................................................ 33

12

Mechanical, Packaging, and Orderable

Information ........................................................... 34

4 Revision History

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

Changes from Revision A (November 2014) to Revision B

Page

•

Deleted SWIFT™ from the data sheet title ........................................................................................................................... 1

•

Deleted Features: For SWIFT™ Documentation visit http://www.ti.com/swift........................................................................ 1

•

Moved Storage temperature to the Absolute Maximum Ratings............................................................................................ 4

•

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

Changes from Original (October 2011) to Revision A

Page

•

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

Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation ............... 1

•

Deleted Feature: –40°C to 125°C Operating Junction Temperature Range ......................................................................... 1

•

Added the I/O column to the Pin Functions table .................................................................................................................. 3

•

Added IOUT = 8A and IOUT = 6A to the Operating Junction Temperature row of the ABS MAX table, also Min = -40

and Max =150 ........................................................................................................................................................................ 4