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LM3674 2-MHz, 600-mA Step-Down DC-DC Converter in SOT-23
SNVS405G
December 2005 – April 2015
LM3674
PRODUCTION DATA.
CONTENTS
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LM3674 2-MHz, 600-mA Step-Down DC-DC Converter in SOT-23
1
Features
2
Applications
3
Description
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Dissipation Ratings
6.6
Electrical Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Circuit Operation
7.3.2
PWM Operation
7.3.2.1
Internal Synchronous Rectification
7.3.2.2
Current Limiting
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.1.1
Soft-Start
8.1.2
Low-Dropout (LDO) Operation
8.2
Typical Applications
8.2.1
Typical Application for Fixed Voltage Configuration
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Inductor Selection
8.2.1.2.2
Input Capacitor Selection
8.2.1.2.3
Output Capacitor Selection
8.2.1.3
Application Curves
8.2.2
Typical Application Circuit for Adjustable Voltage Option
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.2.1
Output Voltage Selection for Adjustable (LM3674-ADJ)
8.2.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Third-Party Products Disclaimer
11.2
Trademarks
11.3
Electrostatic Discharge Caution
11.4
Glossary
12
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
封装选项
机械数据 (封装 | 引脚)
DBV|5
MPDS018T
散热焊盘机械数据 (封装 | 引脚)
订购信息
snvs405g_oa
snvs405g_pm
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