ZHCSL72B
October 2016 – July 2021
TPS57114C-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 Diagram
7.3
Feature Description
7.3.1
Fixed-Frequency PWM Control
7.3.2
Slope Compensation and Output Current
7.3.3
Bootstrap Voltage (BOOT) and Low-Dropout Operation
7.3.3.1
Error Amplifier
7.3.4
Voltage Reference
7.4
Device Functional Modes
7.4.1
Adjusting the Output Voltage
7.4.2
Enable Functionality and Adjusting Undervoltage Lockout
7.4.3
Slow-Start or Tracking Pin
7.4.4
Sequencing
7.4.5
Constant Switching Frequency and Timing Resistor (RT/CLK Pin)
7.4.6
Overcurrent Protection
7.4.7
Frequency Shift
7.4.8
Reverse Overcurrent Protection
7.4.9
Synchronize Using The RT/CLK Pin
7.4.10
Power Good (PWRGD Pin)
7.4.11
Overvoltage Transient Protection
7.4.12
Thermal Shutdown
7.4.13
Small-Signal Model for Loop Response
7.4.14
Simple Small-Signal Model for Peak-Current Mode Control
7.4.15
Small-Signal Model for Frequency Compensation
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Selecting the Switching Frequency
8.2.2.2
Output Inductor Selection
8.2.2.3
Output Capacitor
8.2.2.4
Input Capacitor
8.2.2.5
Slow-Start Capacitor
8.2.2.6
Bootstrap Capacitor Selection
8.2.2.7
Output-Voltage And Feedback-Resistor Selection
8.2.2.8
Compensation
8.2.2.9
Power-Dissipation Estimate
8.2.3
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
第三方产品免责声明
11.1.2
Development Support
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
12
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
RTE|16
MPQF149D
散热焊盘机械数据 (封装 | 引脚)
RTE|16
QFND290G
订购信息
zhcsl72b_oa
zhcsl72b_pm
1
特性
符合汽车应用要求
具有符合 AEC-Q100 标准的下列特性:
器件温度等级 1:–40°C 至 +125°C 环境工作温度范围
器件 HBM ESD 分类等级 2
器件 CDM ESD 分类等级 C4B
提供功能安全
可帮助进行功能安全系统设计的文档
两个可在 4A 负载下获得高效率的 12mΩ(典型值)MOSFET
200kHz 至 2MHz 开关频率
在工作温度范围(–40°C 至 +150°C)内具有
0.8V ± 1% 电压基准
与外部时钟同步
可调缓启动和排序
欠压 (UV) 和过压 (OV) 电源正常输出
–40°C 至 +150°C 的工作结温范围
热增强型 3mm × 3mm 16 引脚 WQFN 封装
与 TPS54418 引脚兼容
推出更新版本产品:
TPS62810-Q1
采用 3mm × 2mm VQFN 可湿性侧面封装的 6V 降压转换器