LP2982 Datasheet, PDF (2/28 Pages) National Semiconductor (TI) – Micropower 50 mA Ultra Low-Dropout Regulator

LP2982
SNVS128K – MARCH 2000 – REVISED JUNE 2016
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 .................................................. 5
6.5 Electrical Characteristics........................................... 5
6.6 Typical Characteristics .............................................. 7
7 Detailed Description ............................................ 13
7.1 Overview ................................................................. 13
7.2 Functional Block Diagram ....................................... 13
7.3 Feature Description................................................. 13
7.4 Device Functional Modes........................................ 14
8 Application and Implementation ........................ 15
8.1 Application Information............................................ 15
8.2 Typical Application ................................................. 15
9 Power Supply Recommendations...................... 20
10 Layout................................................................... 20
10.1 Layout Guidelines ................................................. 20
10.2 Layout Example .................................................... 20
11 Device and Documentation Support ................. 21
11.1 Third-Party Products Disclaimer ........................... 21
11.2 Documentation Support ........................................ 21
11.3 Community Resources.......................................... 21
11.4 Trademarks ........................................................... 21
11.5 Electrostatic Discharge Caution ............................ 21
11.6 Glossary ................................................................ 21
12 Mechanical, Packaging, and Orderable
Information ........................................................... 21
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision J (April 2013) to Revision K
Page
• Deleted TM symbol from VIP - no longer trademarked; changed word in title from "Regulator" to "LDO" ........................... 1
• 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 .............................. 1
• Changed update typical application drawing and change pin names from Vin, Vout to IN and OUT; remove last
paragraph of Description beginning "Four output voltage versions..." ................................................................................... 1
• Deleted Lead temperature row from Abs Max; this information is in the POA; remove "(survival)" and "(operating)"
from rows in Abs Max table ................................................................................................................................................... 4
• Added "ON/OFF input voltage" to ROC table ........................................................................................................................ 4
• Changed V_IN – V_O to "V_DO" .................................................................................................................................................... 5
Changes from Revision I (April 2013) to Revision J
Page
• Changed layout of National Semiconductor Data Sheet to TI format .................................................................................. 18
2
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