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LP2985-N
SNVS018Y –MARCH 2000–REVISED DECEMBER 2016
www.ti.com
Product Folder Links: LP2985-N
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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.................................................. 5
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics.............................................. 7
7 Detailed Description............................................ 11
7.1 Overview................................................................. 11
7.2 Functional Block Diagram....................................... 11
7.3 Feature Description................................................. 11
7.4 Device Functional Modes........................................ 13
8 Application and Implementation ........................ 14
8.1 Application Information............................................ 14
8.2 Typical Application.................................................. 14
9 Power Supply Recommendations...................... 21
10 Layout................................................................... 21
10.1 Layout Guidelines ................................................. 21
10.2 Layout Example .................................................... 21
11 Device and Documentation Support................. 22
11.1 Documentation Support ........................................ 22
11.2 Receiving Notification of Documentation Updates 22
11.3 Community Resources.......................................... 22
11.4 Trademarks........................................................... 22
11.5 Electrostatic Discharge Caution............................ 22
11.6 Glossary................................................................ 22
12 Mechanical, Packaging, and Orderable
Information........................................................... 22
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision X (May 2015) to Revision Y Page
• Added top nav icon for TI Designs ........................................................................................................................................ 1
• Deleted "Smallest Possible Size (SOT-23 Package)" from Features..................................................................................... 1
• Deleted all information re: DSBGA package - it is no longer available ................................................................................. 1
• Deleted DSBGA pin function info from Pin Functions............................................................................................................ 3
• Deleted infor re: DSBGA package; changed "...value of RθJA for the SOT-23 package is 175.7°C/W ..." to "...value of
RθJA for the SOT-23 package is 169.0°C/W..." in footnote 3 to Abs Max table - see update thermal info for SOT-23
in Thermal Information............................................................................................................................................................ 4
• Changed "All pins except 3 and 4 (SOT-23)" to "Pins 3 and 4 ." .......................................................................................... 4
• Changed thermal values for SOT-23 package; added Note 2 to Thermal Information table ................................................ 5
• Deleted footnote 1 to Electrical Characteristics ..................................................................................................................... 5
• Changed content in last 2 paragraphs of Reverse Input-Output Voltage ........................................................................... 17
• Added Power Dissipation and Estimating Junction Temperature subsections ................................................................... 18
Changes from Revision W (September 2014) to Revision X Page
• Changed pin names in text and app circuit drawing "VOUT" and "VIN" to "OUT" and "IN"; replace Handling Ratings
with ESD Ratings; update Thermal Values ........................................................................................................................... 1
• Changed footnote 1 to Ab Max table per new format ........................................................................................................... 4
• Changed location of storage temperature range from Handling Ratings to Ab Max table..................................................... 4
• Added required Application Information section .................................................................................................................. 14
Changes from Revision V (April 2013) to Revision W Page
• Added Pin Configuration and Functions section, 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 .................. 1