LP3852_15 Datasheet, PDF (2/32 Pages) Texas Instruments – 1.5-A Fast Response Ultra-Low Dropout Linear Regulators

LP3852, LP3855
SNVS174I – FEBRUARY 2003 – REVISED FEBRUARY 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Simplified Schematics........................................... 1
5 Revision History..................................................... 2
6 Voltage Options ..................................................... 3
7 Pin Configuration and Functions ......................... 4
8 Specifications......................................................... 5
8.1 Absolute Maximum Ratings ...................................... 5
8.2 ESD Ratings.............................................................. 5
8.3 Recommended Operating Conditions....................... 5
8.4 Thermal Information .................................................. 5
8.5 Electrical Characteristics........................................... 6
8.6 Typical Characteristics .............................................. 8
9 Detailed Description ............................................ 11
9.1 Overview ................................................................. 11
9.2 Functional Block Diagrams ..................................... 11
9.3 Feature Description................................................. 12
9.4 Device Functional Modes........................................ 13
10 Application and Implementation........................ 14
10.1 Application Information.......................................... 14
10.2 Typical Applications ............................................. 14
11 Power Supply Recommendations ..................... 17
12 Layout................................................................... 18
12.1 Layout Guidelines ................................................. 18
12.2 Layout Example .................................................... 18
12.3 RFI and/or EMI Susceptibility................................ 19
12.4 Power Dissipation/Heatsinking.............................. 19
13 Device and Documentation Support ................. 21
13.1 Related Links ........................................................ 21
13.2 Trademarks ........................................................... 21
13.3 Electrostatic Discharge Caution ............................ 21
13.4 Glossary ................................................................ 21
14 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 H (December 2014) to Revision I
Page
• Changed pin names to TI nomenclature; correct typos ........................................................................................................ 1
• Changed pin numbers and I/O types to correct errors .......................................................................................................... 4
• Changed Handling to ESD Ratings ....................................................................................................................................... 5
Changes from Revision G (April 2013) to Revision H
Page
• Added Device Information and Handling Rating tables, Feature Description, Device Functional Modes, Application
and Implementation, Power Supply Recommendations, Layout, Device and Documentation Support, and
Mechanical, Packaging, and Orderable Information sections; moved some curves to Application Curves section;
updated Thermal Values ....................................................................................................................................................... 1
Changes from Revision F (April 2013) to Revision G
Page
• Changed layout of National Data Sheet to TI format ........................................................................................................... 20
2
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