LP2985-N_15 Datasheet, PDF (2/41 Pages) Texas Instruments – LP2985-N Micropower 150-mA Low-Noise Ultra-Low-Dropout Regulator in SOT-23 and DSBGA Packages Designed for Use with Very Low ESR Output Capacitors

LP2985-N
SNVS018X – MARCH 2000 – REVISED MAY 2015
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Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ...................................... 5
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 6
7.5 Electrical Characteristics........................................... 6
7.6 Typical Characteristics .............................................. 8
8 Detailed Description ............................................ 12
8.1 Overview ................................................................. 12
8.2 Functional Block Diagram ....................................... 12
8.3 Feature Description................................................. 12
8.4 Device Functional Modes........................................ 13
9 Application and Implementation ........................ 15
9.1 Application Information............................................ 15
9.2 Typical Application .................................................. 15
10 Power Supply Recommendations ..................... 22
11 Layout................................................................... 22
11.1 Layout Guidelines ................................................. 22
11.2 Layout Example .................................................... 22
11.3 DSBGA Mounting.................................................. 22
11.4 DSBGA Light Sensitivity ....................................... 23
12 Device and Documentation Support ................. 24
12.1 Documentation Support ........................................ 24
12.2 Community Resources.......................................... 24
12.3 Trademarks ........................................................... 24
12.4 Electrostatic Discharge Caution ............................ 24
12.5 Glossary ................................................................ 24
13 Mechanical, Packaging, and Orderable
Information ........................................................... 24
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
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 ........................................................................................................... 5
• Changed location of storage temperature range from Handling Ratings to Ab Max table..................................................... 5
• Added required Application Information section .................................................................................................................. 15
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
section ................................................................................................................................................................................... 1
Changes from Revision U (April 2013) to Revision V
Page
• Changed layout of National Data Sheet to TI format ........................................................................................................... 23
2
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