TPS549B22RVFT datasheet(2/68 Pages) TI1

Part #	TPS549B22RVFT

Description	1.5-V to 18-V VIN, 4.5-V to 22-V VDD, 25-A SWIFT Synchronous Step-Down Converter With Full Differential Sense and PMBus

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Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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TPS549B22

SNVSAU8 – JUNE 2017

www.ti.com

Product Folder Links: TPS549B22

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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 ....................... 5

6.4

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

6.5

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

6.6

Typical Characteristics ............................................ 10

7

Detailed Description ............................................ 14

7.1

Overview ................................................................. 14

7.2

Functional Block Diagram ....................................... 15

7.3

Feature Description................................................. 15

7.4

Device Functional Modes........................................ 19

7.5

Programming........................................................... 19

7.6

Register Maps ......................................................... 29

8

Application and Implementation ........................ 43

8.1

Application Information............................................ 43

8.2

Typical Applications ................................................ 44

9

Power Supply Recommendations ...................... 54

10

Layout................................................................... 54

10.1

Layout Guidelines ................................................. 54

10.2

Layout Examples................................................... 55

10.3

Mounting and Thermal Profile Recommendation.. 57

11

Device and Documentation Support ................. 58

11.1

Device Support...................................................... 58

11.2

Documentation Support ........................................ 58

11.3

Receiving Notification of Documentation Updates 58

11.4

Community Resources.......................................... 58

11.5

Trademarks ........................................................... 58

11.6

Electrostatic Discharge Caution ............................ 58

11.7

Glossary ................................................................ 59

12

Mechanical, Packaging, and Orderable

Information ........................................................... 59

4 Revision History

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

DATE

REVISION

NOTES

June 2017

*

Initial release

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