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LM2678T-ADJ датащи(PDF) 2 Page - Texas Instruments

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номер детали LM2678T-ADJ
подробное описание детали  LM2678 SIMPLE SWITCHER짰 High Efficiency 5-A Step-Down Voltage Regulator
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LM2678
SNVS029J – MARCH 2000 – REVISED JULY 2016
www.ti.com
Product Folder Links: LM2678
Submit Documentation Feedback
Copyright © 2000–2016, Texas Instruments Incorporated
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 – 3.3 V .............................. 5
6.6
Electrical Characteristics – 5 V ................................. 5
6.7
Electrical Characteristics – 12 V ............................... 6
6.8
Electrical Characteristics – Adjustable...................... 6
6.9
Electrical Characteristics – All Output Voltage
Versions ..................................................................... 6
6.10
Typical Characteristics ............................................ 7
7
Detailed Description ............................................ 10
7.1
Overview ................................................................. 10
7.2
Functional Block Diagram ....................................... 10
7.3
Feature Description................................................. 10
7.4
Device Functional Modes........................................ 11
8
Application and Implementation ........................ 12
8.1
Application Information............................................ 12
8.2
Typical Application .................................................. 14
9
Power Supply Recommendations ...................... 25
10
Layout................................................................... 25
10.1
Layout Guidelines ................................................. 25
10.2
Layout Example .................................................... 26
11
Device and Documentation Support ................. 27
11.1
Related Documentation......................................... 27
11.2
Receiving Notification of Documentation Updates 27
11.3
Community Resources.......................................... 27
11.4
Trademarks ........................................................... 27
11.5
Electrostatic Discharge Caution ............................ 27
11.6
Glossary ................................................................ 27
12
Mechanical, Packaging, and Orderable
Information ........................................................... 27
12.1
VSON Package Devices ....................................... 27
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision I (April 2013) to Revision J
Page
Added 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
Removed all references to Computer Design Software LM267X Made Simple (Version 6.0).............................................. 1
Changes from Revision H (April 2013) to Revision I
Page
Changed layout of National Data Sheet to TI format ........................................................................................................... 27


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