ZHCSHZ6A
April 2018 – December 2018
TPS746
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
典型应用
4
修订历史记录
5
Pin Configuration and Functions
Pin 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
Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Undervoltage Lockout (UVLO)
7.3.2
Shutdown
7.3.3
Foldback Current Limit
7.3.4
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Device Functional Mode Comparison
7.4.2
Normal Operation
7.4.3
Dropout Operation
7.4.4
Disabled
8
Application and Implementation
8.1
Application Information
8.1.1
Adjustable Device Feedback Resistors
8.1.2
Input and Output Capacitor Selection
8.1.3
Dropout Voltage
8.1.4
Exiting Dropout
8.1.5
Reverse Current
8.1.6
Power Dissipation (PD)
8.1.7
Power-Good Function
8.2
Feed-Forward Capacitor (CFF)
8.3
Typical Application
8.3.1
Design Requirements
8.3.2
Detailed Design Procedure
8.3.2.1
Input Current
8.3.2.2
Thermal Dissipation
8.3.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
器件和文档支持
11.1
文档支持
11.1.1
相关文档
11.2
接收文档更新通知
11.3
社区资源
11.4
商标
11.5
静电放电警告
11.6
术语表
12
机械、封装和可订购信息
1
特性
输入电压范围:1.5V 至 6.0V
可调节输出电压:
0.55V 至 5.5V
极低压降:
1A 电流时为 225mV(最大值)(3.3V
OUT
)
高输出精度:
典型值为 0.7%
过温 (85°C) 条件下的最大值为 1%
开漏电源正常状态输出
电源正常状态上升延迟:
TPS746:165µs
TPS746B:5ms
I
Q
:25µA(典型值)
内置软启动功能,具有单调 V
OUT
上升
封装:
2mm × 2mm 6 引脚 WSON (DRV)
有源输出放电