ZHCSHM2C
June 2018 – May 2022
TPS746-Q1
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
6.6
Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagrams
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
8.1.8
Feed-Forward Capacitor (CFF)
8.1.9
Start-Up Sequencing
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Input Current
8.2.2.2
Thermal Dissipation
8.2.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Examples
11
Device and Documentation Support
11.1
Device Support
11.1.1
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
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
DRB|8
MPDS118K
DRV|6
MPDS216E
散热焊盘机械数据 (封装 | 引脚)
DRB|8
QFND619
DRV|6
QFND651
订购信息
zhcshm2c_oa
zhcshm2c_pm
1
特性
符合面向汽车应用的 AEC-Q100 标准:
温度等级 1:–40°C 至 +125°C,T
A
器件工作结温范围:
–40°C 至 +150°C
封装:
2mm × 2mm 可湿性侧面 WSON 封装
3mm × 3mm 可湿性侧面 VSON 封装
输入电压范围:1.5V 至 6.0V
输出电压范围:
固定电压:0.65V 至 5.0V
可调节电压:0.55V 至 5.5V
高 PSRR:100kHz 时为 38dB
输出精度:典型值为 ±0.85%,最大值为 ±1.5%
电源正常输出选项:
开漏或推挽
超低压降:
1A 电流时 265mV(最大值)(3.3V
OUT
)
与 1µF 或更大的电容器搭配使用时可保持稳定
低 I
Q
:25μA(典型值)
有源输出放电
提供功能安全
可提供用于功能安全系统设计的文档
低热阻:
DRV(6 引脚 WSON),R
θJA
= 80.3°C/W
DRB(8 引脚 VSON),R
θJA
= 55.5°C/W