ZHCS996D
June 2012 – February 2018
TPS81256
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
典型应用
效率与负载电流间的关系
4
修订历史记录
5
Device Options
6
Pin Configuration and Functions
Pin 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
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Operation
8.3.2
Power-Save Mode
8.3.3
Current Limit Operation, Maximum Output Current
8.4
Device Functional Modes
8.4.1
Softstart, Enable
8.4.2
Load Disconnect and Reverse Current Protection
8.4.3
Undervoltage Lockout
8.4.4
Thermal Regulation
8.4.5
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 Capacitor Selection CEXT
9.2.2.2
Input Capacitor Selection
9.2.3
Application Curves
9.3
System Examples
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
11.3
Surface Mount Information
11.4
Thermal and Reliability Information
12
器件和文档支持
12.1
器件支持
12.1.1
第三方产品免责声明
12.2
社区资源
12.3
商标
12.4
静电放电警告
12.5
Glossary
13
机械、封装和可订购信息
9.2.3
Application Curves
Figure 14.
Start-Up
Figure 16.
AC Load Transient
Figure 18.
Load Transient Response
In PFM/PWM Operation
Figure 20.
Combined Line/Load Transient Response
Figure 15.
Overload Recovery Response
Figure 17.
Load Transient Response
In PFM/PWM Operation
Figure 19.
Load Transient Response In PFM/PWM Operation