LP3872_16 Datasheet, PDF (2/28 Pages) Texas Instruments – 1.5-A Fast Ultra-Low-Dropout Linear Regulators

LP3872, LP3875
SNVS227H – FEBRUARY 2003 – REVISED JANUARY 2015
www.ti.com
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 .............................................. 6
7 Detailed Description .............................................. 8
7.1 Overview ................................................................... 8
7.2 Functional Block Diagram ......................................... 8
7.3 Feature Description................................................... 8
7.4 Device Functional Modes.......................................... 9
8 Application and Implementation ........................ 11
8.1 Application Information............................................ 11
8.2 Typical Application .................................................. 11
9 Power Supply Recommendations...................... 16
10 Layout................................................................... 16
10.1 Layout Guidelines ................................................. 16
10.2 Layout Examples................................................... 17
11 Device and Documentation Support ................. 18
11.1 Related Links ........................................................ 18
11.2 Trademarks ........................................................... 18
11.3 Electrostatic Discharge Caution ............................ 18
11.4 Glossary ................................................................ 18
12 Mechanical, Packaging, and Orderable
Information ........................................................... 18
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision G (December 2014) to Revision H
Page
• Added Input voltage range as first Feature ........................................................................................................................... 1
• Added "(LP3872 only)" .......................................................................................................................................................... 1
• Added "(LP3875 only)" .......................................................................................................................................................... 1
• Changed all VIN and VOUT pin names to IN and OUT in drawings and text........................................................................ 1
• Changed footnotes to appear under each table .................................................................................................................... 4
• Deleted CDM footnote ........................................................................................................................................................... 4
• Deleted last sentence of Short-Circuit Protection subsection ............................................................................................... 9
Changes from Revision F (April 2013) to Revision G
Page
• Added Pin Configuration and Functions section, ESD Ratings 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
2
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