2

REF3112, REF3120, REF3125

REF3130, REF3133, REF3140

SBVS046D – DECEMBER 2003 – REVISED MARCH 2016

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Product Folder Links: REF3112 REF3120 REF3125 REF3130 REF3133 REF3140

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Copyright © 2003–2016, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

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

5

Device Comparison Table..................................... 3

6

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

7

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

7.1

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

7.2

ESD Ratings.............................................................. 4

7.3

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

7.4

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

7.5

Electrical Characteristics........................................... 4

7.6

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

8

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

8.1

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

8.2

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

8.3

Feature Description................................................. 10

8.4

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

9

Application and Implementation ........................ 15

9.1

Application Information............................................ 15

9.2

Typical Application ................................................. 15

10

Power Supply Recommendations ..................... 17

11

Layout................................................................... 17

11.1

Layout Guidelines ................................................. 17

11.2

Layout Example .................................................... 17

12

Device and Documentation Support ................. 18

12.1

Device Support...................................................... 18

12.2

Related Links ........................................................ 18

12.3

Community Resources.......................................... 18

12.4

Trademarks ........................................................... 18

12.5

Electrostatic Discharge Caution ............................ 18

12.6

Glossary ................................................................ 18

13

Mechanical, Packaging, and Orderable

Information ........................................................... 18

4 Revision History

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

Changes from Revision C (February 2006) to Revision D

Page

•

Added the Device Information table, the Thermal Information 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

•

Removed the Ordering Information table .............................................................................................................................. 1

•

Moved and updated the SOT23-3 surface mount thermal resistance data from the Electrical Characteristics table to

the Thermal Information table................................................................................................................................................. 4

•

Removed the boldface type in the Electrical Characteristics table and identified when limits apply over the specified

temperature range TA = –40°C to +125°C in the test conditions column .............................................................................. 4

•

Added Figure 19 ..................................................................................................................................................................... 8