2

TPS53355

SLUSAE5D – AUGUST 2011 – REVISED NOVEMBER 2016

www.ti.com

Product Folder Links: TPS53355

Submit Documentation Feedback

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

6

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

6.1

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

6.2

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

6.3

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

6.4

Thermal Infomation ................................................... 6

6.5

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

6.6

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

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

8

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

8.1

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

8.2

Typical Applications ................................................ 22

9

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

10

Layout................................................................... 29

10.1

Layout Guidelines ................................................. 29

10.2

Layout Example .................................................... 30

11

Device and Documentation Support ................. 31

11.1

Receiving Notification of Documentation Updates 31

11.2

Community Resources.......................................... 31

11.3

Trademarks ........................................................... 31

11.4

Electrostatic Discharge Caution ............................ 31

11.5

Glossary ................................................................ 31

12

Mechanical, Packaging, and Orderable

Information ........................................................... 31

4 Revision History

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

Changes from Revision C (February 2016) to Revision D

Page

•

Added Feature: Green (RoHS Compatible), is Optional ....................................................................................................... 1

•

Added the VQP package to the Thermal Infomation ............................................................................................................. 6

•

From: a SC5026-1R0 inductor is used. To: a 744355182 inductor is used. .......................................................................... 8

•

Changed Figure 32 and Figure 33 ....................................................................................................................................... 12

•

5-V LDO and VREG Start-Up, Changed the NOTE From: "The 5-V LDO is not controlled" To: "The 5-V LDO is

controlled" ............................................................................................................................................................................. 15

•

Changed 250 µs To ~550 µs in Figure 34............................................................................................................................ 16

Changes from Revision B (January 2014) to Revision C

Page

•

Changed the datasheet Title From: "TPS53355 High-Efficiency 30-A Synchronous Buck Converter With Eco-

mode™" To: "TPS53355 High-Efficiency 30-A Synchronous Buck SWIFT™ Converter With Eco-mode™" ........................ 1

•

Added Features: "For SWIFT™ Power Products Documentation,..." .................................................................................... 1

Changes from Revision A (September 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