ZHCSDH4A
February 2015 – March 2015
LMR14050
PRODUCTION DATA.
1
特性
2
应用范围
3
说明
4
简化电路原理图
5
修订历史记录
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
Switching 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
Slope Compensation
8.3.3
Sleep-mode
8.3.4
Low Dropout Operation and Bootstrap Voltage (BOOT)
8.3.5
Adjustable Output Voltage
8.3.6
Enable and Adjustable Under-voltage Lockout
8.3.7
External Soft-start
8.3.8
Switching Frequency and Synchronization (RT/SYNC)
8.3.9
Over Current and Short Circuit Protection
8.3.10
Overvoltage Protection
8.3.11
Thermal Shutdown
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
Output Voltage Set-Point
9.2.2.2
Switching Frequency
9.2.2.3
Output Inductor Selection
9.2.2.4
Output Capacitor Selection
9.2.2.5
Schottky Diode Selection
9.2.2.6
Input Capacitor Selection
9.2.2.7
Bootstrap Capacitor Selection
9.2.2.8
Soft-start Capacitor Selection
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
器件和文档支持
12.1
商标
12.2
静电放电警告
12.3
术语表
13
机械封装和可订购信息
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
订购信息
zhcsdh4a_oa
zhcsdh4a_pm