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LMR38010 具有 40µA IQ 的 4.2V 至 80V、1A 同步 SIMPLE SWITCHER 电源转换器
ZHCSP81B
January 2022 – September 2023
LMR38010
PRODUCTION DATA
CONTENTS
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LMR38010 具有 40µA IQ 的 4.2V 至 80V、1A 同步 SIMPLE SWITCHER 电源转换器
1
1
特性
2
应用
3
说明
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
System Characteristics
7.7
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Fixed Frequency Peak Current Mode Control
8.3.2
Adjustable Output Voltage
8.3.3
Enable
8.3.4
Switching Frequency and Synchronization (RT/SYNC)
8.3.5
Power-Good Flag Output
8.3.6
Minimum On Time, Minimum Off Time, and Frequency Foldback
8.3.7
Bootstrap Voltage
8.3.8
Overcurrent and Short Circuit Protection
8.3.9
Soft Start
8.3.10
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Auto Mode
8.4.2
Forced PWM Operation
8.4.3
Dropout
8.4.4
Minimum Switch On Time
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.2.1
Custom Design With WEBENCH® Tools
9.2.2.2
Choosing the Switching Frequency
9.2.2.3
FB for Adjustable Output
9.2.2.4
Inductor Selection
9.2.2.5
Output Capacitor Selection
9.2.2.6
Input Capacitor Selection
9.2.2.7
CBOOT
9.2.2.8
External UVLO
9.2.2.9
Maximum Ambient Temperature
9.2.3
Application Curves
9.3
Best Design Practices
9.4
Power Supply Recommendations
9.5
Layout
9.5.1
Layout Guidelines
9.5.1.1
Ground and Thermal Considerations
9.5.2
Layout Example
10
Device and Documentation Support
10.1
Device Support
10.1.1
Development Support
10.1.1.1
Custom Design With WEBENCH® Tools
10.1.2
第三方米6体育平台手机版_好二三四免责声明
10.2
Documentation Support
10.2.1
Related Documentation
10.3
接收文档更新通知
10.4
支持资源
10.5
Trademarks
10.6
静电放电警告
10.7
术语表
11
Mechanical, Packaging, and Orderable Information
重要声明
封装选项
机械数据 (封装 | 引脚)
DDA|8
MPDS092F
散热焊盘机械数据 (封装 | 引脚)
DDA|8
PPTD058I
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Data Sheet
LMR38010
具有 40µA I
Q
的 4.2V 至 80V、
1A
同步
SIMPLE SWITCHER
电源转换器
本资源的原文使用英文撰写。 为方便起见,TI 提供了译文;由于翻译过程中可能使用了自动化工具,TI 不保证译文的准确性。 为确认准确性,请务必访问 ti.com 参考最新的英文版本(控制文档)。
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