TPS72301, TPS72325

SLVS346C – SEPTEMBER 2003 – REVISED SEPTEMBER 2014

www.ti.com

Table of Contents

1

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

8

Application and Implementation ........................ 13

8.1

Application Information............................................ 13

2

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

8.2

Typical Application .................................................. 13

3

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

8.3

Do's and Don'ts ....................................................... 14

4

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

9

Power-Supply Recommendations...................... 15

5

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

10

Layout................................................................... 15

6

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

10.1

Layout Guidelines ................................................. 15

6.1

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

10.2

Layout Example .................................................... 15

6.2

Handling Ratings....................................................... 4

10.3

Power Dissipation ................................................. 15

6.3

Recommended Operating Conditions ....................... 4

10.4

Thermal Protection................................................ 15

6.4

Thermal Information .................................................. 4

11

Device and Documentation Support ................. 16

6.5

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

11.1

Device Support...................................................... 16

6.6

Typical Characteristics .............................................. 6

11.2

Related Links ........................................................ 16

7

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

11.3

Trademarks ........................................................... 16

7.1

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

11.4

Electrostatic Discharge Caution ............................ 16

7.2

Functional Block Diagrams ..................................... 11

11.5

Glossary ................................................................ 16

7.3

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

12

Mechanical, Packaging, and Orderable

7.4

Device Functional Modes........................................ 12

Information ........................................................... 16

4 Revision History

Changes from Revision B (July 2007) to Revision C

Page

•

Changed format to meet latest data sheet standards; added new sections, and moved existing sections .......................... 1

•

Added bullet item for DDC package to Features list ............................................................................................................. 1

•

Revised Device Information table to include SOT-5 package ................................................................................................ 1

•

Updated Typical Application Circuit to show SOT-5 (DDC) package pin configuration ......................................................... 1

•

Added pin configuration drawings ......................................................................................................................................... 3

•

Deleted Dissipation Ratings table; see Thermal Information ................................................................................................ 4

•

Changed y-axis title in Figure 11 to Feedback Current from Supply Current ....................................................................... 6

•

Reworded second paragraph in Current Limit subsection. .................................................................................................. 12

Changes from Revision A (June 2007) to Revision B

Page

•

Added second paragraph in Current Limit subsection ........................................................................................................ 12

•

Changed equation shown in Figure 27 ................................................................................................................................ 13

Changes from Original (September 2003) to Revision A

Page

•

Changed document format to correspond to current product line standards ......................................................................... 1

•

Removed Output Voltage vs Output Current graph (original Fig 2) ...................................................................................... 6

2

Submit Documentation Feedback

Copyright © 2003–2014, Texas Instruments Incorporated

Product Folder Links: TPS72301 TPS72325