ZHCSEI2B
January 2016 – June 2021
TPS7A84
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Pin Configurations 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
Low-Noise, High-PSRR Output
7.3.2
Integrated Resistance Network (ANY-OUT)
7.3.3
Bias Rail
7.3.4
Power-Good Function
7.3.5
Programmable Soft-Start
7.3.6
Internal Current Limit (ILIM)
7.3.7
Enable
7.3.8
Active Discharge Circuit
7.3.9
Undervoltage Lockout (UVLO)
7.3.10
Thermal Protection
7.4
Device Functional Modes
7.4.1
Operation with 1.1 V ≤ VIN < 1.4 V
7.4.2
Operation with 1.4 V ≤ VIN ≤ 6.5 V
7.4.3
Shutdown
8
Application and Implementation
8.1
Application Information
8.1.1
Recommended Capacitor Types
8.1.2
Input and Output Capacitor Requirements (CIN and COUT)
8.1.3
Noise-Reduction and Soft-Start Capacitor (CNR/SS)
8.1.4
Feed-Forward Capacitor (CFF)
8.1.5
Soft-Start and In-Rush Current
8.1.6
Optimizing Noise and PSRR
8.1.7
Charge Pump Noise
8.1.8
ANY-OUT Programmable Output Voltage
8.1.9
ANY-OUT Operation
8.1.10
Increasing ANY-OUT Resolution for LILO Conditions
8.1.11
Current Sharing
8.1.12
Adjustable Operation
8.1.13
Sequencing Requirements
8.1.13.1
Sequencing with a Power-Good DC-DC Converter Pin
8.1.13.2
Sequencing with a Microcontroller (MCU)
8.1.14
Power-Good Operation
8.1.15
Undervoltage Lockout (UVLO) Operation
8.1.16
Dropout Voltage (VDO)
8.1.17
Behavior when Transitioning from Dropout into Regulation
8.1.18
Load Transient Response
8.1.19
Negatively-Biased Output
8.1.20
Reverse Current Protection
8.1.21
Power Dissipation (PD)
8.1.22
Estimating Junction Temperature
8.1.23
Recommended Area for Continuous Operation (RACO)
8.2
Typical Applications
8.2.1
Low-Input, Low-Output (LILO) Voltage Conditions
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.3
Application Curves
8.2.2
Typical Application for a 5.0-V Rail
8.2.2.1
Design Requirements
8.2.2.2
Detailed Design Procedure
8.2.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
Board Layout
10.2
Layout Example
11
Device and Documentation Support
11.1
Device Support
11.1.1
Development Support
11.1.1.1
Evaluation Modules
11.1.1.2
Spice Models
11.1.2
Device Nomenclature
11.2
Documentation Support
11.2.1
Related Documentation
11.3
接收文档更新通知
11.4
支持资源
11.5
Trademarks
11.6
Electrostatic Discharge Caution
11.7
术语表
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RGR|20
MPQF239A
散热焊盘机械数据 (封装 | 引脚)
RGR|20
QFND242E
订购信息
zhcsei2b_oa
zhcsei2b_pm
10.1
Layout Guidelines
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