TPS54232

SLVS876D – NOVEMBER 2008 – REVISED NOVEMBER 2014

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Table of Contents

8.3

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

1

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

8.4

Device Functional Modes........................................ 13

2

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

9

Application and Implementation ........................ 14

3

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

9.1

Application Information............................................ 14

4

Simplified Schematic............................................. 1

9.2

Typical Application ................................................. 14

5

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

10

Power Supply Recommendations ..................... 24

6

Pin Configuration and Functions ......................... 4

11

Layout................................................................... 24

7

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

11.1

Layout Guidelines ................................................. 24

7.1

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

11.2

Layout Example .................................................... 24

7.2

Handling Ratings ...................................................... 5

11.3

Estimated Circuit Area .......................................... 25

7.3

Recommended Operating Conditions ....................... 6

11.4

Electromagnetic Interference (EMI)

7.4

Thermal Information .................................................. 6

Considerations ......................................................... 25

7.5

Electrical Characteristics........................................... 7

12

Device And Documentation Support................. 26

7.6

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

12.1

Trademarks ........................................................... 26

7.7

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

12.2

Electrostatic Discharge Caution ............................ 26

8

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

12.3

Glossary ................................................................ 26

8.1

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

13

Mechanical, Packaging, And Orderable

8.2

Functional Block Diagram ....................................... 10

Information ........................................................... 26

5 Revision History

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

Changes from Revision C (October 2013) to Revision D

Page

•

Changed the data sheet to the new standard format ............................................................................................................. 1

•

Added Pin Configuration and Functions section, Handling Rating 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

•

Added the Thermal Information table ..................................................................................................................................... 6

•

Deleted Package Dissipation Ratings table............................................................................................................................ 7

•

Changed Equation 7 ............................................................................................................................................................. 15

•

Changed Equation 32 ........................................................................................................................................................... 20

•

Changed Equation 33 ........................................................................................................................................................... 20

Changes from Revision B (February 2011) to Revision C

Page

•

Removed Swift™ from the data sheet title ............................................................................................................................. 1

•

Changed text From: "Where NC is the number of output capacitors in parallel." To: ":Where CO is the number of

output capacitors in parallel." Following Equation 13 ........................................................................................................... 17

•

Changed Equation 26 ........................................................................................................................................................... 18

•

Changed Equation 29 ........................................................................................................................................................... 19

•

Changed: Switching loss: Paw = 0.5 x 10

-9 x VIN2 x I

OUT x Few To: Switching loss: Psw = 0.5 x 10

-9 x VIN2 x I

OUT x

Fsw ...................................................................................................................................................................................... 21

•

Changed: Gate charge loss: P.C. = 22.8 x 10

-9 x Few To: Gate charge loss: Pgc. = 22.8 x 10-9 x Fsw ............................ 21

•

Deleted graph "Maximum Power Dissipation vs Junction Temperature" from the Supplemental Application Curves......... 22

2

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