TPS51275B-1RUKR datasheet(2/31 Pages) TI

Part #	TPS51275B-1RUKR

Description	TPS51275B-1 Dual Synchronous, Step-Down Controller With 5-V and 3.3-V LDOs

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Manufacturer	TI [Texas Instruments]

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2 / 31 page

TPS51275B-1

SLVSCT3 – MARCH 2015

www.ti.com

Table of Contents

8.2

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

1

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

8.3

Feature Description................................................. 12

2

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

8.4

Device Functional Modes........................................ 16

3

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

9

Application and Implementation ........................ 17

4

Typical Application Diagram ................................ 1

9.1

Application Information............................................ 17

5

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

9.2

Typical Application ................................................. 17

6

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

10

Power Supply Recommendations ..................... 21

7

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

11

Layout................................................................... 21

7.1

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

11.1

Layout Guidelines ................................................. 21

7.2

ESD Ratings.............................................................. 4

11.2

Layout Example .................................................... 22

7.3

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

12

Device and Documentation Support ................. 22

7.4

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

12.1

Device Support...................................................... 22

7.5

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

12.2

Trademarks ........................................................... 22

7.6

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

12.3

Electrostatic Discharge Caution ............................ 22

7.7

Switching Characteristics .......................................... 7

12.4

Glossary ................................................................ 22

7.8

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

13

Mechanical, Packaging, and Orderable

8

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

Information ........................................................... 23

8.1

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

5 Revision History

DATE

REVISION

NOTES

March 2015

*

Initial release.

2

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