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LP3985 数据表(PDF) 2 Page - Texas Instruments |
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LP3985 数据表(HTML) 2 Page - Texas Instruments |
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2 / 34 page ![]() LP3985 SNVS087AE – OCTOBER 2000 – REVISED MAY 2015 www.ti.com Table of Contents 7.4 Device Functional Modes........................................ 14 1 Features .................................................................. 1 8 Application and Implementation ........................ 15 2 Applications ........................................................... 1 8.1 Application Information............................................ 15 3 Description ............................................................. 1 8.2 Typical Application ................................................. 15 4 Revision History..................................................... 2 9 Power Supply Recommendations ...................... 18 5 Pin Configuration and Functions ......................... 3 10 Layout................................................................... 19 6 Specifications......................................................... 4 10.1 Layout Guidelines ................................................. 19 6.1 Absolute Maximum Ratings ...................................... 4 10.2 Layout Examples................................................... 19 6.2 ESD Ratings.............................................................. 4 10.3 DSBGA Mounting.................................................. 19 6.3 Recommended Operating Conditions ....................... 4 10.4 DSBGA Light Sensitivity ....................................... 19 6.4 Thermal Information .................................................. 4 11 Device and Documentation Support ................. 21 6.5 Electrical Characteristics........................................... 5 11.1 Documentation Support ....................................... 21 6.6 Typical Performance Characteristics ........................ 7 11.2 Trademarks ........................................................... 21 7 Detailed Description ............................................ 13 11.3 Electrostatic Discharge Caution ............................ 21 7.1 Overview ................................................................. 13 11.4 Glossary ................................................................ 21 7.2 Functional Block Diagram ....................................... 13 12 Mechanical, Packaging, and Orderable 7.3 Feature Description................................................. 13 Information ........................................................... 21 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision AD (October 2014) to Revision AE Page • Changed update pin names to TI nomenclature; replace Handling Ratings with ESD Ratings ........................................... 1 • Deleted Voltage Options table - information in POA ............................................................................................................. 1 • Added GND as type for ground pins ..................................................................................................................................... 3 • Added Thermal Considerations sub-section ........................................................................................................................ 17 Changes from Revision AC (May 2013) to Revision AD 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; add new Thermal Information ........................................................................................................................................................ 1 Changes from Revision AB (May 2013) to Revision AC Page • Changed layout of National Data Sheet to TI format ........................................................................................................... 20 2 Submit Documentation Feedback Copyright © 2000–2015, Texas Instruments Incorporated Product Folder Links: LP3985 |
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