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LM3880
SNVS451L –AUGUST 2006–REVISED NOVEMBER 2018
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Product Folder Links: LM3880
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Table of Contents
1 Features.................................................................. 1
2 Applications ........................................................... 1
3 Description............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 ESD Ratings.............................................................. 4
6.3 Recommended Operating Conditions....................... 4
6.4 Thermal Information.................................................. 4
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics.............................................. 7
7 Detailed Description.............................................. 9
7.1 Overview................................................................... 9
7.2 Functional Block Diagram......................................... 9
7.3 Feature Description................................................... 9
7.4 Device Functional Modes........................................ 12
8 Application and Implementation ........................ 13
8.1 Application Information............................................ 13
8.2 Typical Application.................................................. 13
8.3 Do's and Don'ts ...................................................... 15
9 Power Supply Recommendations...................... 17
10 Layout................................................................... 17
10.1 Layout Guidelines ................................................. 17
10.2 Layout Example .................................................... 17
11 Device and Documentation Support................. 19
11.1 Device Support...................................................... 19
11.2 Community Resources.......................................... 20
11.3 Trademarks........................................................... 20
11.4 Electrostatic Discharge Caution............................ 20
11.5 Glossary................................................................ 20
12 Mechanical, Packaging, and Orderable
Information........................................................... 20
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision K (February 2016) to Revision L Page
• Updated Features to specify how many rails can be sequenced by a single device ............................................................ 1
• Added feature that devices can be cascaded ....................................................................................................................... 1
• Specified device dimensions in Features............................................................................................................................... 1
• Specified FPGA Power Supply Sequencing in Applications .................................................................................................. 1
• Added note in description about open drain FLAG pins......................................................................................................... 1
• Added I/O column to Pin Functions table............................................................................................................................... 3
• Changed Part Nomenclature section to Device Nomenclature section................................................................................ 19
Changes from Revision J (December 2014) to Revision K Page
• Changed Handling Ratings to ESD Ratings and moved storage temperature to Absolute Maximum Ratings..................... 4
• Removed “Customized Timing and Sequence” section ...................................................................................................... 12
• Added cross references to timing diagrams......................................................................................................................... 19
Changes from Revision I (March 2013) to Revision J 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 ............................................................... 4
Changes from Revision H (March 2013) to Revision I Page
• Changed layout of National Data Sheet to TI format. .......................................................................................................... 19