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TPS7A90 500mA 高精度、低噪声 LDO 电压稳压器
ZHCSGH9
June 2017
TPS7A90
PRODUCTION DATA.
CONTENTS
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TPS7A90 500mA 高精度、低噪声 LDO 电压稳压器
1
特性
2
应用
3
说明
4
修订历史记录
5
Pin Configuration and 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
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Output Enable
7.3.2
Dropout Voltage (VDO)
7.3.3
Output Voltage Accuracy
7.3.4
High Power-Supply Rejection Ratio (PSRR)
7.3.5
Low Output Noise
7.3.6
Output Soft-Start Control
7.3.7
Power-Good Function
7.3.8
Internal Protection Circuitry
7.3.8.1
Undervoltage Lockout (UVLO)
7.3.8.2
Internal Current Limit (ICL)
7.3.8.3
Thermal Protection
7.4
Device Functional Modes
7.4.1
Normal Operation
7.4.2
Dropout Operation
7.4.3
Disabled
8
Application and Implementation
8.1
Application Information
8.1.1
Adjustable Output
8.1.2
Start-Up
8.1.2.1
Enable (EN) and Undervoltage Lockout (UVLO)
8.1.2.2
Noise-Reduction and Soft-Start Capacitor (CNR/SS)
8.1.2.2.1
Noise Reduction
8.1.2.2.2
Soft-Start and In-Rush Current
8.1.3
Capacitor Recommendation
8.1.3.1
Input and Output Capacitor Requirements (CIN and COUT)
8.1.3.1.1
Load-Step Transient Response
8.1.3.2
Feed-Forward Capacitor (CFF)
8.1.4
Power Dissipation (PD)
8.1.5
Estimating Junction Temperature
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
Board Layout
10.2
Layout Example
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
评估模块
11.1.1.2
SPICE 模型
11.1.2
器件命名规则
11.2
文档支持
11.2.1
相关文档
11.3
接收文档更新通知
11.4
社区资源
11.5
商标
11.6
静电放电警告
11.7
Glossary
12
机械、封装和可订购信息
重要声明
封装选项
机械数据 (封装 | 引脚)
DSK|10
MPDS326A
散热焊盘机械数据 (封装 | 引脚)
DSK|10
QFND148E
订购信息
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