ZHCSGP0A
July 2017 – September 2017
TPS7A39
PRODUCTION DATA.
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
Startup Characteristics
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Voltage Regulation
7.3.1.1
DC Regulation
7.3.1.2
AC and Transient Response
7.3.2
User-Settable Buffered Reference
7.3.3
Active Discharge
7.3.4
System Start-Up Controls
7.3.4.1
Start-Up Tracking
7.3.4.2
Sequencing
7.3.4.2.1
Enable (EN)
7.3.4.2.2
Undervoltage Lockout (UVLO) Control
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
Setting the Output Voltages on Adjustable Devices
8.1.2
Capacitor Recommendations
8.1.3
Input and Output Capacitor (CINx and COUTx)
8.1.4
Feed-Forward Capacitor (CFFx)
8.1.5
Noise-Reduction and Soft-Start Capacitor (CNR/SS)
8.1.6
Buffered Reference Voltage
8.1.7
Overriding Internal Reference
8.1.8
Start-Up
8.1.8.1
Soft-Start Control (NR/SS)
8.1.8.1.1
In-Rush Current
8.1.8.2
Undervoltage Lockout (UVLOx) Control
8.1.9
AC and Transient Performance
8.1.9.1
Power-Supply Rejection Ratio (PSRR)
8.1.9.2
Channel-to-Channel Output Isolation and Crosstalk
8.1.9.3
Output Voltage Noise
8.1.9.4
Optimizing Noise and PSRR
8.1.9.5
Load Transient Response
8.1.10
DC Performance
8.1.10.1
Output Voltage Accuracy (VOUTx)
8.1.10.2
Dropout Voltage (VDO)
8.1.11
Reverse Current
8.1.12
Power Dissipation (PD)
8.1.12.1
Estimating Junction Temperature
8.2
Typical Applications
8.2.1
Design 1: Single-Ended to Differential Isolated Supply
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Switcher Choice
8.2.1.2.2
Full Bridge Rectifier With Center-Tapped Transformer
8.2.1.2.3
Total Solution Efficiency
8.2.1.2.4
Feedback Resistor Selection
8.2.1.3
Application Curves
8.2.2
Design 2: Getting the Full Range of a SAR ADC
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.3
Detailed Design Description
8.2.2.3.1
Regulation of -0.2 V
8.2.2.3.2
Feedback Resistor Selection
8.2.2.4
Application Curves
9
Power-Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
Board Layout Recommendations to Improve PSRR and Noise Performance
10.2
Layout Example
10.3
Package Mounting
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
11.2
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
封装选项
机械数据 (封装 | 引脚)
DSC|10
MPDS239E
散热焊盘机械数据 (封装 | 引脚)
DSC|10
QFND232J
订购信息
zhcsgp0a_oa
zhcsgp0a_pm