ZHCS181G
August 2011 – April 2021
TPS53355
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings (1)
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Infomation
6.5
Electrical Characteristics
6.6
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
5-V LDO and VREG Start-Up
7.3.2
Adaptive On-Time D-CAP Control and Frequency Selection
7.3.3
Ramp Signal
7.3.4
Adaptive Zero Crossing
7.3.5
Power-Good
7.3.6
Current Sense, Overcurrent and Short Circuit Protection
7.3.7
Overvoltage and Undervoltage Protection
7.3.8
UVLO Protection
7.3.9
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Enable, Soft Start, and Mode Selection
7.4.2
Auto-Skip Eco-mode™ Light Load Operation
7.4.3
Forced Continuous Conduction Mode
8
Application and Implementation
8.1
Application Information
8.1.1
Small Signal Model
8.2
Typical Applications
8.2.1
Typical Application Circuit Diagram with Ceramic Output Capacitors
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
External Component Selection
8.2.1.2.3
External Component Selection Using All Ceramic Output Capacitors
8.2.1.3
Application Curves
8.2.2
Typical Application Circuit
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.2.1
External Component Selection
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
第三方产品免责声明
11.1.2
Development Support
11.1.2.1
Custom Design With WEBENCH® Tools
11.2
接收文档更新通知
11.3
支持资源
11.4
Trademarks
11.5
静电放电警告
11.6
术语表
12
Mechanical, Packaging, and Orderable Information
封装选项
请参考 PDF 数据表获取器件具体的封装图。
机械数据 (封装 | 引脚)
DQP|22
散热焊盘机械数据 (封装 | 引脚)
DQP|22
QFND267C
订购信息
zhcs181g_oa
zhcs181g_pm
8.2.1.3
Application Curves
Figure 8-3
Enable Turn-on
Figure 8-5
Output Transient From DCM to CCM
Figure 8-7
Output Transient With FCCM Mode
Figure 8-9
Output Overcurrent Protection
Figure 8-4
Enable Turn-off
Figure 8-6
Output Transient From CCM to DCM
Figure 8-8
Output 0.75-V Prebias Turn-on
Figure 8-10
Output Short Circuit Protection