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LM22678 数据表(PDF) 2 Page - Texas Instruments

部件名 LM22678
功能描述  SIMPLE SWITCHER Step-Down Voltage Regulator With Features
Download  26 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

LM22678 数据表(HTML) 2 Page - Texas Instruments

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LM22678, LM22678-Q1
SNVS585L – SEPTEMBER 2008 – REVISED NOVEMBER 2014
www.ti.com
Table of Contents
7.4
Device Functional Modes........................................ 11
1
Features .................................................................. 1
8
Application and Implementation ........................ 14
2
Applications ........................................................... 1
8.1
Application Information............................................ 14
3
Description ............................................................. 1
8.2
Typical Applications ................................................ 15
4
Revision History..................................................... 2
9
Power Supply Recommendations ...................... 18
5
Pin Configuration and Functions ......................... 3
10
Layout................................................................... 18
6
Specifications......................................................... 4
10.1
Layout Guidelines ................................................. 18
6.1
Absolute Maximum Ratings ...................................... 4
10.2
Layout Example .................................................... 19
6.2
Handling Ratings: LM22678...................................... 4
10.3
Thermal Considerations ........................................ 19
6.3
Handling Ratings: LM22678-Q1................................ 4
11
Device and Documentation Support ................. 20
6.4
Recommended Operating Conditions ....................... 4
11.1
Documentation Support ........................................ 20
6.5
Thermal Information .................................................. 4
11.2
Related Links ........................................................ 20
6.6
Electrical Characteristics........................................... 5
11.3
Trademarks ........................................................... 20
6.7
Typical Characteristics .............................................. 6
11.4
Electrostatic Discharge Caution ............................ 20
7
Detailed Description .............................................. 8
11.5
Glossary ................................................................ 20
7.1
Overview ................................................................... 8
12
Mechanical, Packaging, and Orderable
7.2
Functional Block Diagram ......................................... 8
Information ........................................................... 20
7.3
Feature Description................................................... 9
4 Revision History
Changes from Revision K (March 2013) to Revision L
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
Deleted Inverting Regulator Application ............................................................................................................................... 14
2
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Copyright © 2008–2014, Texas Instruments Incorporated
Product Folder Links: LM22678 LM22678-Q1


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