ZHCSN73B
January 2021 – January 2022
TPS785-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
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagrams
7.3
Feature Description
7.3.1
Foldback Current Limit
7.3.2
Output Enable
7.3.3
Active Discharge
7.3.4
Undervoltage Lockout (UVLO) Operation
7.3.5
Dropout Voltage
7.3.6
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
Recommended Capacitor Types
8.1.2
Input and Output Capacitor Requirements
8.1.3
Adjustable Device Feedback Resistors
8.1.4
Load Transient Response
8.1.5
Exiting Dropout
8.1.6
Dropout Voltage
8.1.7
Reverse Current
8.1.8
Feed-Forward Capacitor (CFF)
8.1.9
Power Dissipation (PD)
8.1.9.1
Estimating Junction Temperature
8.1.9.2
Recommended Area for Continuous Operation
8.1.9.3
Power Dissipation versus Ambient Temperature
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.1.1
Additional Layout Considerations
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
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
DRB|8
MPDS118K
KVU|5
MPSF019
散热焊盘机械数据 (封装 | 引脚)
DRB|8
QFND619
KVU|5
QFND405
订购信息
zhcsn73b_oa
zhcsn73b_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
器件结温:–40°C 至 +150°C,T
J
输入电压范围:1.7V 至 6.0V
可提供以下输出电压:
可调节选项:1.2V 至 5.5V
固定选项:0.65V 至 5.0V
输出精度:典型值为 0.5%,最大值为 1.7%
低 I
Q
:25μA(典型值)
超低压降:
1A 电流时为 315mV(最大值)(3.3V
OUT
)
内部软启动时间为 550μs,可降低浪涌电流
有源输出放电
封装:
3mm × 3mm 可湿性侧面 VSON (8) 封装
5 引脚 TO-252,R
θJA
= 31.6°C/W
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