ZHCSEU9C
March 2016 – June 2018
LMZ34202
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
简化应用
效率与输出电流间的关系
4
修订历史记录
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Switching Characteristics
6.7
Typical Characteristics
6.8
Typical Characteristics (Thermal Derating)
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Adjusting the Output Voltage
7.3.2
Switching Frequency (RT)
7.3.3
Recommended Operating Range
7.3.4
Synchronization (CLK)
7.3.5
Output Capacitor Selection
7.3.6
VERSA-COMP Pin Configurations
7.3.7
Input Capacitor Selection
7.3.8
Output On/Off Inhibit (INH/UVLO)
7.3.9
Under Voltage Lockout (UVLO)
7.3.10
Remote Sense
7.3.11
VBSEL
7.3.12
Soft-Start (SS/TR)
7.3.13
Power Good (PWRGD) and Pull-up (PWRGD_PU)
7.3.14
Overcurrent Protection
7.3.15
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Active Mode
7.4.2
Light Load Operation
7.4.3
Shutdown Mode
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Minimum External Component Application
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Custom Design With WEBENCH® Tools
8.2.1.2.2
Output Voltage Set-Point
8.2.1.2.3
RT and RTSEL
8.2.1.2.4
VERSA-COMP
8.2.1.2.5
VBSEL
8.2.1.2.6
Input Capacitors
8.2.1.2.7
Output Capacitors
8.2.1.3
Application Curves
8.2.2
INH Control Application
8.2.2.1
Design Requirements
8.2.3
Detailed Design Procedure
8.2.3.1
Switching Frequency
8.2.3.2
Power Good
8.2.3.3
Inhibit Control
8.2.3.4
VERSA-COMP
8.2.3.5
VBSEL
8.2.3.6
Soft-Start Capacitors
8.2.3.7
Input Capacitors
8.2.3.8
Output Capacitors
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
10.3
EMI
11
器件和文档支持
11.1
器件支持
11.1.1
开发支持
11.1.1.1
使用 WEBENCH® 工具创建定制设计
11.1.2
第三方产品免责声明
11.2
接收文档更新通知
11.3
社区资源
11.4
商标
11.5
静电放电警告
11.6
术语表
12
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
RVQ|43
MPQF400A
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcseu9c_oa
zhcseu9c_pm
8.2.3
Detailed Design Procedure