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TPS53353

SLUSAK2C – AUGUST 2011 – REVISED FEBRUARY 2016

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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 ....................... 4

6.4

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

6.5

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

6.6

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

7

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

7.1

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

7.2

Functional Block Diagram ....................................... 13

7.3

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

7.4

Device Functional Modes........................................ 17

8

Application and Implementation ........................ 20

8.1

Application Information............................................ 20

8.2

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

9

Power Supply Recommendations ...................... 27

10

Layout................................................................... 27

10.1

Layout Guidelines ................................................. 27

10.2

Layout Example .................................................... 28

11

Device and Documentation Support ................. 29

11.1

Trademarks ........................................................... 29

11.2

Electrostatic Discharge Caution ............................ 29

11.3

Glossary ................................................................ 29

12

Mechanical, Packaging, and Orderable

Information ........................................................... 29

4 Revision History

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

Changes from Revision B (February 2015) to Revision C

Page

•

Changed the datasheet Title From: "TPS53353 High-Efficiency 20-A Synchronous Buck Converter With Eco-

mode™" To: "TPS53353 High-Efficiency 20-A Synchronous Buck SWIFT™ Converter With Eco-mode™" ........................ 1

•

Added Features: "For SWIFT™ Power Product Documentation..." ....................................................................................... 1

Changes from Revision A (April 2012) to Revision B

Page

•

Added Pin Configuration and Functions section, 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 .............................. 1

Changes from Original (AUGUST 2011) to Revision A

Page

•

Changed conversion input voltage from "3 V" to "1.5 V"........................................................................................................ 1

•

Changed VIN input voltage range minimum from "3 V" to "1.5 V" ......................................................................................... 3

•

Changed to correct typographical error in THERMAL INFORMATION table......................................................................... 4

•

Changed VIN (main supply) input voltage range minimum from "3 V' to "1.5 V" in Recommended Operating Conditions... 4

•

Changed conversion input voltage range from "3 V" to "1.5" in Overview ........................................................................... 13

•

Added note to the Feature Description................................................................................................................................. 14

•

Changed "ripple injection capacitor" to "ripple injection resistor" in the last bullet of the section ........................................ 27