LP38691_15 Datasheet, PDF (2/34 Pages) Texas Instruments – LP3869x/-Q1 500-mA Low-Dropout CMOS Linear Regulators Stable With Ceramic Output Capacitors

LP38691, LP38693, LP38691-Q1, LP38693-Q1
SNVS321O – JANUARY 2005 – REVISED DECEMBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Typical Application Circuits ................................. 1
5 Revision History..................................................... 2
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings: LP38691 and LP38693....................... 4
7.3 ESD Ratings: LP38691-Q1 and LP38693-Q1........... 4
7.4 Recommended Operating Conditions....................... 4
7.5 Thermal Information .................................................. 5
7.6 Electrical Characteristics........................................... 5
7.7 Typical Characteristics .............................................. 7
8 Detailed Description ............................................ 11
8.1 Overview ................................................................. 11
8.2 Functional Block Diagrams ..................................... 11
8.3 Feature Description................................................. 13
8.4 Device Functional Modes........................................ 13
9 Application and Implementation ........................ 14
9.1 Application Information............................................ 14
9.2 Typical Application ................................................. 14
10 Power Supply Recommendations ..................... 19
11 Layout................................................................... 19
11.1 Layout Guidelines ................................................. 19
11.2 Layout Example .................................................... 19
11.3 WSON Mounting ................................................... 20
12 Device and Documentation Support ................. 21
12.1 Documentation Support ........................................ 21
12.2 Related Links ........................................................ 21
12.3 Community Resources.......................................... 21
12.4 Trademarks ........................................................... 21
12.5 Electrostatic Discharge Caution ............................ 21
12.6 Glossary ................................................................ 21
13 Mechanical, Packaging, and Orderable
Information ........................................................... 21
5 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision N (March 2015) to Revision O
Page
• Added top navigator icon for TI Designs ............................................................................................................................... 1
• Added Caution note to Foldback Current Limiting subsection ............................................................................................ 13
Changes from Revision M (February 2015) to Revision N
Page
• Added "Cout = xx pF" to "Cout = µF" for Figures 4 through 6 in Typical Characteristics ...................................................... 1
Changes from Revision L (December 2014) to Revision M
Page
• Changed wording of Description and added one item to Features; update Vin, Vout and Ven pin names to IN, OUT,
and EN in text and graphics .................................................................................................................................................. 1
• Added top navigator icon for TI Designs ............................................................................................................................... 1
• Changed "PFM" to 'TO-252" .................................................................................................................................................. 4
• Changed Handling Ratings to ESD Ratings format ............................................................................................................... 4
Changes from Revision K (April 2013) to Revision L
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; update thermal values .......................... 1
Changes from Revision J (April 2013) to Revision K
Page
• Changed layout of National Data Sheet to TI format ........................................................................................................... 18
2
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