ZHCSD50D
December 2014 – February 2017
TPS62170-Q1
,
TPS62171-Q1
,
TPS62172-Q1
PRODUCTION DATA.
1
特性
2
应用
3
说明
4
修订历史记录
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
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Enable / Shutdown (EN)
8.3.2
Softstart
8.3.3
Power Good (PG)
8.3.4
Under Voltage Lockout (UVLO)
8.3.5
Thermal Shutdown
8.4
Device Functional Modes
8.4.1
Pulse Width Modulation (PWM) Operation
8.4.2
Power Save Mode Operation
8.4.3
100% Duty-Cycle Operation
8.4.4
Current Limit and Short Circuit Protection
8.4.5
Operation Above TJ = 125°C
9
Application and Implementation
9.1
Application Information
9.2
Typical TPS62170-Q1 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
Programming the Output Voltage
9.2.2.3
External Component Selection
9.2.2.3.1
Inductor Selection
9.2.2.3.2
Capacitor Selection
9.2.2.3.2.1
Output Capacitor
9.2.2.3.2.2
Input Capacitor
9.2.2.4
Output Filter and Loop Stability
9.2.3
Application Performance Plots
9.3
System Examples
9.3.1
Inverting Power Supply
9.3.2
Various Output Voltages
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
11.3
Thermal Considerations
12
器件和文档支持
12.1
器件支持
12.1.1
开发支持
12.1.1.1
使用 WEBENCH® 工具定制设计方案
12.1.2
Third-Party Products Disclaimer
12.2
文档支持
12.2.1
相关文档
12.3
相关链接
12.4
商标
12.5
静电放电警告
12.6
接收文档更新通知
12.7
社区资源
12.8
Glossary
13
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
DSG|8
MPDS308C
散热焊盘机械数据 (封装 | 引脚)
DSG|8
QFND141I
订购信息
zhcsd50d_oa
zhcsd50d_pm
5
Device Comparison Table
PART NUMBER
(1)
OUTPUT VOLTAGE
TPS62170-Q1
adjustable
TPS62171-Q1
1.8 V
TPS62172-Q1
3.3 V
(1)
For detailed ordering information please check the
机械、封装和可订购信息
section at the end of this datasheet.