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REF3425-Q1, REF3430-Q1, REF3433-Q1, REF3440-Q1, REF3450-Q1

SBAS901 – JULY 2018

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Product Folder Links: REF3425-Q1 REF3430-Q1 REF3433-Q1 REF3440-Q1 REF3450-Q1

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Copyright © 2018, 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........................................... 5

7.6

Typical Characteristics .............................................. 7

8

Parameter Measurement Information ................ 11

8.1

Solder Heat Shift ..................................................... 11

8.2

Long-Term Stability ................................................. 12

8.3

Thermal Hysteresis ................................................. 12

8.4

Power Dissipation ................................................... 13

8.5

Noise Performance ................................................. 14

9

Detailed Description ............................................ 15

9.1

Overview ................................................................. 15

9.2

Functional Block Diagram ....................................... 15

9.3

Feature Description................................................. 15

9.4

Device Functional Modes........................................ 16

10

Application and Implementation........................ 17

10.1

Application Information.......................................... 17

10.2

Typical Applications ............................................. 17

11

Power Supply Recommendations ..................... 22

12

Layout................................................................... 22

12.1

Layout Guidelines ................................................. 22

12.2

Layout Example .................................................... 22

13

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

13.1

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

13.2

Receiving Notification of Documentation Updates 23

13.3

Community Resources.......................................... 23

13.4

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

13.5

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

13.6

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

14

Mechanical, Packaging, and Orderable

Information ........................................................... 24

4 Revision History

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

DATE

REVISION

NOTES

July 2018

*

Initial release