Table of Contents

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

2 Applications..................................................................... 1

3 Description.......................................................................1

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

5 Device Comparison Table...............................................4

6 Pin Configuration and Functions...................................5

7 Specifications.................................................................. 6

7.1 Absolute Maximum Ratings ....................................... 6

7.2 ESD Ratings .............................................................. 6

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

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

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

7.6 Typical Characteristics................................................ 9

8 Parameter Measurement Information.......................... 13

8.1 Solder Heat Shift.......................................................13

8.2 Long-Term Stability................................................... 14

8.3 Thermal Hysteresis................................................... 14

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

8.5 Noise Performance................................................... 16

9 Detailed Description......................................................17

9.1 Overview................................................................... 17

9.2 Functional Block Diagram......................................... 17

9.3 Feature Description...................................................17

9.4 Device Functional Modes..........................................18

10 Application and Implementation................................ 19

10.1 Application Information........................................... 19

10.2 Typical Application: Basic Voltage Reference

Connection.................................................................. 19

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 Support Resources................................................. 23

13.4 Trademarks.............................................................23

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

13.6 Glossary..................................................................23

14 Mechanical, Packaging, and Orderable

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

4 Revision History

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

Changes from Revision E (April 2021) to Revision F (June 2021)

Page

• Added low dropout line item to Features section................................................................................................1

• Consolidated part numbers in Device Information table..................................................................................... 1

• Changed Thermal Information parameters to correctly reflect DBV package.................................................... 6

• Added second cycle thermal hysteresis plot.....................................................................................................14

• Linked product numbers in table to datasheets................................................................................................ 19

Changes from Revision D (February 2021) to Revision E (April 2021)

Page

• Removed the "Product Preview" note for the REF34xxT package options........................................................ 4

Changes from Revision C (January 2021) to Revision D (February 2021)

Page

• Updated description and figures......................................................................................................................... 1

• Changed ENABLE TO EN.................................................................................................................................. 1

• Updated values.................................................................................................................................................13

Changes from Revision B (March 2018) to Revision C (February 2021)

Page

• Added "Device Information" to include REF34xxT............................................................................................. 1

• Added hyperlinks to "Applications"..................................................................................................................... 1

• Updated the numbering format for tables, figures, and cross-references throughout the document..................1

• Added REF34xxT to "Device Comparison Table"...............................................................................................4

• Added REF34xxT to "Pin Configuration and Functions".....................................................................................5

• Fixed pinout numbering...................................................................................................................................... 5

REF3425, REF3430, REF3433, REF3440, REF3450

SBAS804F – SEPTEMBER 2017 – REVISED JUNE 2021

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