2

REF3312, REF3318, REF3320, REF3325, REF3330, REF3333

SBOS392H – AUGUST 2007 – REVISED AUGUST 2019

www.ti.com

Product Folder Links: REF3312 REF3318 REF3320 REF3325 REF3330 REF3333

Submit Documentation Feedback

Copyright © 2007–2019, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

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

5

Device Comparison ............................................... 4

6

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

7

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

7.1

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

7.2

ESD Ratings.............................................................. 5

7.3

Recommended Operating Conditions ....................... 5

7.4

Thermal Information .................................................. 5

7.5

Electrical Characteristics........................................... 6

7.6

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

8

Parameter Measurement Information ................ 10

8.1

Thermal Hysteresis ................................................. 10

9

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

9.1

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

9.2

Functional Block Diagram ....................................... 11

9.3

Feature Description................................................. 11

9.4

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

10

Applications and Implementation...................... 13

10.1

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

10.2

Typical Applications .............................................. 13

11

Power-Supply Recommendations ..................... 18

12

Layout................................................................... 19

12.1

Layout Guidelines ................................................. 19

12.2

Layout Example .................................................... 19

13

Device and Documentation Support ................. 20

13.1

Documentation Support ........................................ 20

13.2

Related Links ........................................................ 20

13.3

Receiving Notification of Documentation Updates 20

13.4

Community Resources.......................................... 20

13.5

Trademarks ........................................................... 20

13.6

Electrostatic Discharge Caution ............................ 20

13.7

Glossary ................................................................ 20

14

Mechanical, Packaging, and Orderable

Information ........................................................... 21

4 Revision History

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

Changes from Revision G (December 2016) to Revision H

Page

•

Changed maximum operating current value in Recommended Operating Conditions section.............................................. 5

•

Changed table title to REF33xx (REF3312, REF3320, REF3325, REF3330, REF3333, REF3340) .................................... 6

Changes from Revision F (November 2016) to Revision G

Page

•

Added Long-term stability parameter and associated footnote to REF33xx section of Electrical Characteristics table ........ 6

Changes from Revision E (October 2014) to Revision F

Page

•

Changed minimum supply voltage value in second paragraph of Description section ......................................................... 1

•

Changed Device Information table ........................................................................................................................................ 1

•

Changed ESD Ratings table: changed title and format, moved Tstg parameter to Absolute Maximum Ratings table .......... 5

•

Changed supply voltage value in footnote of Recommended Operating Conditions table .................................................... 5

•

Changed supply voltage value in footnote 1 of Electrical Characteristics table .................................................................... 6

•

Changed minimum supply voltage value in Device Functional Modes section ................................................................... 12

•

Changed minimum supply voltage value in Power-Supply Recommendations section ...................................................... 18

Changes from Revision D (June 2014) to Revision E

Page

•

Added REF3325 UQFN package to data sheet ..................................................................................................................... 1

•

Added note to Applications and Implementation section...................................................................................................... 13