ZHCSJF5B
February 2019 – October 2019
TPS562231
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
简化电路原理图
TPS562231 效率
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
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Adaptive On-Time Control and PWM Operation
7.3.2
Soft Start and Pre-Biased Soft Start
7.3.3
Over Current and Short Circuit Protection
7.3.4
Undervoltage Lockout (UVLO) Protection
7.3.5
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Shutdown Mode
7.4.2
Continuous Conduction Mode (CCM)
7.4.3
Pulse Skip Mode (PSM, TPS562231)
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
Output Voltage Resistors Selection
8.2.2.2
Output Filter Selection
8.2.2.3
Input Capacitor Selection
8.2.2.4
Bootstrap Capacitor Selection
8.2.3
Application Curves
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
器件和文档支持
11.1
器件支持
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
Glossary
12
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
DRL|6
MPDS159H
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsjf5b_oa
zhcsjf5b_pm
1
特性
2A 转换器集成了 95mΩ 和 55mΩ FET
D-CAP3™模式控制,用于快速瞬态响应
输入电压范围:4.5V 至 17V
输出电压范围:0.6V 至 7V
脉冲跳跃模式
850kHz 开关频率
小于 2µA(典型值)的低关断电流
2% 反馈电压精度 (25ºC)
从预偏置输出电压中启动
逐周期过流限制
断续模式过流保护
非锁存 UVP 和 TSD 保护
6 引脚 SOT563 封装
精密使能端
与 TPS563231 引脚对引脚兼容