TPS7A4700, TPS7A4701

SBVS204F – JUNE 2012 – REVISED SEPTEMBER 2014

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Table of Contents

1

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

8

Application and Implementation ........................ 16

8.1

Application Information............................................ 16

2

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

8.2

Typical Application ................................................. 16

3

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

9

Power Supply Recommendations ...................... 20

4

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

9.1

Power Dissipation (PD) ........................................... 20

5

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

10

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

6

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

10.1

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

6.1

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

10.2

Layout Example .................................................... 21

6.2

Handling Ratings....................................................... 6

10.3

Thermal Protection................................................ 22

6.3

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

10.4

Estimating Junction Temperature ......................... 22

6.4

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

11

Device and Documentation Support ................. 23

6.5

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

11.1

Documentation Support ........................................ 23

6.6

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

11.2

Related Links ........................................................ 23

7

Detailed Description ............................................ 12

11.3

Trademarks ........................................................... 23

7.1

Overview ................................................................. 12

11.4

Electrostatic Discharge Caution ............................ 23

7.2

Functional Block Diagram ....................................... 12

11.5

Glossary ................................................................ 23

7.3

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

12

Mechanical, Packaging, and Orderable

7.4

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

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

7.5

Programming........................................................... 13

4 Revision History

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

Changes from Revision E (January 2014) to Revision F

Page

•

Added 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

•

Reworded ninth bullet in Features list .................................................................................................................................... 1

•

Changed polarity of op amp shown on right side of the functional block diagram .............................................................. 12

•

Reworded second paragraph in Soft-Start And Inrush Current section .............................................................................. 13

•

Revised Capacitor Recommendations section..................................................................................................................... 16

•

Changed paragraph 2 of Dropout Voltage (VDO) section for clarity ..................................................................................... 17

•

Revised paragraph 1 of Startup section .............................................................................................................................. 17

•

Rewrote paragraph 1 of Power-Supply Rejection Ratio (PSRR) section to eliminate confusion ........................................ 18

•

Changed paragraph 1 of Power Supply Recommendations section ................................................................................... 20

•

Changed paragraph 1 and paragraph 4 of Power Dissipation (PD) section ......................................................................... 20

•

Revised paragraph 2 of Layout Guidelines section ............................................................................................................. 21

•

Changed second paragraph of Thermal Protection section ................................................................................................ 22

Changes from Revision D (December 2013) to Revision E

Page

•

Changed Output Voltage Noise value from 4.17 µV to 4 µV in three instances on front page.............................................. 1

•

Changed 2nd and 3rd paragraphs of Description section ...................................................................................................... 1

•

Added "Thermal Pad" to pin configuration drawing................................................................................................................ 4

•

Changed EN pin description................................................................................................................................................... 4

•

Changed SENSE/FB pin to be for TPS7A4701 only .............................................................................................................. 5

•

Added new row to Pin Descriptions table for SENSE pin (for TPS7A4700 only)................................................................... 5

•

Added new row to Pin Descriptions table for thermal pad ..................................................................................................... 5

•

2

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