TPSM84624
ZHCSHN7B –FEBRUARY 2018–REVISED APRIL 2018
www.ti.com.cn
目录
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特性.......................................................................... 1
应用.......................................................................... 1
说明.......................................................................... 1
修订历史记录 ........................................................... 2
Pin Configuration and Functions......................... 3
Specifications......................................................... 5
6.1 Absolute Maximum Ratings ...................................... 5
6.2 ESD Ratings.............................................................. 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information.................................................. 6
6.5 Electrical Characteristics........................................... 6
6.6 Switching Characteristics.......................................... 7
6.7 Typical Characteristics (VIN = 12 V).......................... 8
6.8 Typical Characteristics (VIN = 5 V)............................ 9
Detailed Description ............................................ 10
7.1 Overview ................................................................. 10
7.2 Functional Block Diagram ....................................... 10
7.3 Feature Description................................................. 11
7.4 Device Functional Modes........................................ 20
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Application and Implementation ........................ 21
8.1 Application Information............................................ 21
8.2 Typical Application .................................................. 21
Power Supply Recommendations...................... 23
10 Layout................................................................... 24
10.1 Layout Guidelines ................................................. 24
10.2 Layout Examples................................................... 24
10.3 EMI........................................................................ 25
10.4 Package Specifications......................................... 26
11 器件和文档支持 ..................................................... 27
11.1 器件支持 ............................................................... 27
11.2 使用 WEBENCH® 工具创建定制设计 ................... 27
11.3 接收文档更新通知 ................................................. 27
11.4 社区资源................................................................ 27
11.5 商标....................................................................... 27
11.6 静电放电警告......................................................... 27
11.7 Glossary................................................................ 27
12 机械、封装和可订购信息....................................... 28
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4 修订历史记录
注:之前版本的页码可能与当前版本有所不同。
Changes from Revision A (March 2018) to Revision B
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已添加 inductor value to the block diagram ......................................................................................................................... 10
已更改 VOUT Range vs Switching Frequency table .............................................................................................................. 12
已添加 270 µF capacitor to the Allowable Polymer Capacitor table .................................................................................... 15
已添加 EMI section .............................................................................................................................................................. 25
Changes from Original (February 2018) to Revision A
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首次发布生产数据数据表 ....................................................................................................................................................... 1
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