ZHCSRX9A
August 2023 – January 2024
TPS7A53B
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Typical Characteristics
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Voltage Regulation Features
6.3.1.1
DC Regulation
6.3.1.2
AC and Transient Response
6.3.2
System Start-Up Features
6.3.2.1
Programmable Soft-Start (NR/SS Pin)
6.3.2.2
Internal Sequencing
6.3.2.2.1
Enable (EN)
6.3.2.2.2
Undervoltage Lockout (UVLO) Control
6.3.2.2.3
Active Discharge
6.3.2.3
Power-Good Output (PG)
6.3.3
Internal Protection Features
6.3.3.1
Foldback Current Limit (ICL)
6.3.3.2
Thermal Protection (Tsd)
6.4
Device Functional Modes
6.4.1
Regulation
6.4.2
Disabled
6.4.3
Current Limit Operation
7
Application and Implementation
7.1
Application Information
7.1.1
Recommended Capacitor Types
7.1.1.1
Input and Output Capacitor Requirements (CIN and COUT)
7.1.1.2
Noise-Reduction and Soft-Start Capacitor (CNR/SS)
7.1.1.3
Feed-Forward Capacitor (CFF)
7.1.2
Soft-Start and Inrush Current
7.1.3
Optimizing Noise and PSRR
7.1.4
Charge Pump Noise
7.1.5
Current Sharing
7.1.6
Adjustable Operation
7.1.7
Power-Good Operation
7.1.8
Undervoltage Lockout (UVLO) Operation
7.1.9
Dropout Voltage (VDO)
7.1.10
Device Behavior During Transition From Dropout Into Regulation
7.1.11
Load Transient Response
7.1.12
Reverse Current Protection Considerations
7.1.13
Power Dissipation (PD)
7.1.14
Estimating Junction Temperature
7.1.15
TPS7A53EVM Thermal Analysis
7.2
Typical Application
7.2.1
Design Requirements
7.2.2
Detailed Design Procedure
7.2.3
Application Curves
7.3
Power Supply Recommendations
7.4
Layout
7.4.1
Layout Guidelines
7.4.1.1
Board Layout
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Device Support
8.1.1
Device Nomenclature
8.2
Documentation Support
8.2.1
Related Documentation
8.3
接收文档更新通知
8.4
支持资源
8.5
Trademarks
8.6
静电放电警告
8.7
术语表
9
Revision History
10
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RPS|12
MPQF552
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsrx9a_oa
zhcsrx9a_pm
8.6
静电放电警告
静电放电 (ESD) 会损坏这个集成电路。德州仪器 (TI) 建议通过适当的预防措施处理所有集成电路。如果不遵守正确的处理和安装程序,可能会损坏集成电路。
ESD 的损坏小至导致微小的性能降级,大至整个器件故障。精密的集成电路可能更容易受到损坏,这是因为非常细微的参数更改都可能会导致器件与其发布的规格不相符。