ZHCSL68C
April 2017 – December 2020
TPS7A84A
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
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics: General
6.6
Electrical Characteristics: TPS7A8400A
6.7
Electrical Characteristics: TPS7A8401A
6.8
Typical Characteristics: TPS7A8400A
6.9
Typical Characteristics: TPS7A8401A
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagrams
7.3
Feature Description
7.3.1
Voltage Regulation Features
7.3.1.1
DC Regulation
7.3.1.2
AC and Transient Response
7.3.2
System Start-Up Features
7.3.2.1
Programmable Soft Start (NR/SS)
7.3.2.2
Internal Sequencing
7.3.2.2.1
Enable (EN)
7.3.2.2.2
Undervoltage Lockout (UVLO) Control
7.3.2.2.3
Active Discharge
7.3.2.3
Power-Good Output (PG)
7.3.3
Internal Protection Features
7.3.3.1
Foldback Current Limit (ICL)
7.3.3.2
Thermal Protection (Tsd)
7.4
Device Functional Modes
7.4.1
Regulation
7.4.2
Disabled
8
Application and Implementation
8.1
Application Information
8.1.1
External Component Selection
8.1.1.1
Adjustable Operation
8.1.1.2
ANY-OUT Programmable Output Voltage
8.1.1.3
ANY-OUT Operation
8.1.1.4
Increasing ANY-OUT Resolution for LILO Conditions
8.1.1.5
Current Sharing
8.1.1.6
Recommended Capacitor Types
8.1.1.7
Input and Output Capacitor Requirements (CIN and COUT)
8.1.1.8
Feed-Forward Capacitor (CFF)
8.1.1.9
Noise-Reduction and Soft-Start Capacitor (CNR/SS)
8.1.2
Start-Up
8.1.2.1
Circuit Soft-Start Control (NR/SS)
8.1.2.1.1
Inrush Current
8.1.2.2
Undervoltage Lockout (UVLO)
8.1.2.3
Power-Good (PG) Function
8.1.3
AC and Transient Performance
8.1.3.1
Power-Supply Rejection Ratio (PSRR)
8.1.3.2
Output Voltage Noise
8.1.3.3
Optimizing Noise and PSRR
8.1.3.3.1
Charge Pump Noise
8.1.3.4
Load Transient Response
8.1.4
DC Performance
8.1.4.1
Output Voltage Accuracy (VOUT)
8.1.4.2
Dropout Voltage (VDO)
8.1.4.2.1
Behavior When Transitioning From Dropout Into Regulation
8.1.5
Sequencing Requirements
8.1.6
Negatively Biased Output
8.1.7
Reverse Current Protection
8.1.8
Power Dissipation (PD)
8.1.8.1
Estimating Junction Temperature
8.1.8.2
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
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
Development Support
11.1.1.1
Evaluation Models
11.1.1.2
Spice Models
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
静电放电警告
11.7
术语表
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
zhcsl68c_oa
zhcsl68c_pm
1
特性
低压降:3A 电流时为 180mV(最大值),有偏置
线路、负载和温度范围内的最大精度为 0.75%,有偏置
输出电压噪声:4.4µV
RMS
输入电压范围:
无偏置:1.4V 至 6.5V
有偏置:1.1V 至 6.5V
TPS7A8400A 输出电压范围:
可调节工作电压:0.8V 至 5.15V
ANY-OUT™
工作电压:0.8V 至 3.95V
TPS7A8401A 输出电压范围:
可调节工作电压:0.5V 至 5.15V
ANY-OUT™
工作电压:0.5V 至 2.075V
电源纹波抑制:
500kHz 时为 40dB
出色的负载瞬态响应
可调软启动浪涌控制
开漏电源正常 (PG) 输出