ZHCSM63C
September 2020 – December 2021
TPS542A52
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 Diagram
7.3
Feature Description
7.3.1
Enable and Adjustable Undervoltage Lockout
7.3.2
Input and VREG Undervoltage Lockout Protection
7.3.3
Voltage Reference and Setting the Output Voltage
7.3.4
Remote Sense Function
7.3.5
Switching Frequency
7.3.6
Voltage Control Mode Internal Compensation
7.3.7
Soft Start and Prebiased Output Start-up
7.3.8
Power Good
7.3.9
Overvoltage and Undervoltage Protection
7.3.10
Overcurrent Protection
7.3.11
High-Side FET Throttling
7.3.12
Overtemperature Protection
7.4
Device Functional Modes
7.4.1
Pulse-Frequency Modulation Eco-mode Light Load Operation
7.4.2
Forced Continuous-Conduction Mode
7.4.3
Soft Start
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Full Analog Configuration
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Custom Design With WEBENCH® Tools
8.2.1.2.2
Output Voltage Calculation
8.2.1.2.3
Switching Frequency Selection
8.2.1.2.4
Inductor Selection
8.2.1.2.5
Input Capacitor Selection
8.2.1.2.6
Bootstrap Capacitor Selection
8.2.1.2.7
R-C Snubber and VIN Pin High-Frequency Bypass
8.2.1.2.8
Output Capacitor Selection
8.2.1.2.9
Response to a Load Transient
8.2.1.2.10
Pin-Strap Setting
8.2.1.3
Application Curves
8.2.1.4
Typical Application Circuits
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
Custom Design With WEBENCH® Tools
11.2
接收文档更新通知
11.3
支持资源
11.4
Trademarks
11.5
Electrostatic Discharge Caution
11.6
术语表
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RJM|33
MPQF490B
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsm63c_oa
zhcsm63c_pm
1
特性
集成的 9.1mΩ 和 2.6mΩ MOSFET 可支持高达 15A 的输出电流
0.5V 至 5.5V 输出电压范围
具有可选内部补偿的固定频率电压控制模式
7 种频率设置可选(400kHz 至 2.2MHz)
与外部时钟同步
全差分遥感
6 个可选过流限值、4 个软启动压摆率
单调启动至预偏置输出
EN 引脚,支持可调节的输入 UVLO
电源正常状态指示器
17µA 典型关断静态电流消耗
可选 FCCM 或 PFM,可实现出色轻负载效率
工作结温范围:–40°C 至 +150°C
4mm × 4.5mm VQFN 封装
使用 TPS542A52 并借助
WEBENCH®
Power Designer
创建定制设计方案