ZHCSJ43
December 2018
TPS54360B
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
简化原理图
效率与负载电流间的关系
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
Timing Requirements
6.7
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 Output Current
7.3.3
Pulse Skip Eco-mode
7.3.4
Low Dropout Operation and Bootstrap Voltage (BOOT)
7.3.5
Error Amplifier
7.3.6
Adjusting the Output Voltage
7.3.7
Enable and Adjusting Undervoltage Lockout
7.3.8
Internal Soft Start
7.3.9
Constant Switching Frequency and Timing Resistor (RT/CLK) pin)
7.3.10
Accurate Current Limit Operation and Maximum Switching Frequency
7.3.11
Synchronization to RT/CLK pin
7.3.12
Overvoltage Protection
7.3.13
Thermal Shutdown
7.3.14
Small Signal Model for Loop Response
7.3.15
Simple Small Signal Model for Peak-Current-Mode Control
7.3.16
Small Signal Model for Frequency Compensation
7.4
Device Functional Modes
7.4.1
Operation with VIN ≤ 4.5 V (Minimum VIN)
7.4.2
Operation with EN Control
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
Custom Design with WEBENCH® Tools
8.2.2.2
Selecting the Switching Frequency
8.2.2.3
Output Inductor Selection (LO)
8.2.2.4
Output Capacitor
8.2.2.5
Catch Diode
8.2.2.6
Input Capacitor
8.2.2.7
Bootstrap Capacitor Selection
8.2.2.8
Undervoltage Lockout Set Point
8.2.2.9
Output Voltage and Feedback Resistors Selection
8.2.2.10
Minimum VIN
8.2.2.11
Compensation
8.2.2.12
Discontinuous Conduction Mode and Eco-mode Boundary
8.2.2.13
Power Dissipation Estimate
8.2.3
Application Curves
8.3
Other Applications
8.3.1
Inverting Power
8.3.2
Split-Rail Power Supply
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
10.2.1
Estimated Circuit Area
11
器件和文档支持
11.1
器件支持
11.1.1
第三方产品免责声明
11.1.2
使用 WEBENCH® 工具定制设计方案
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
12
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
DDA|8
MPDS092F
散热焊盘机械数据 (封装 | 引脚)
DDA|8
PPTD058I
订购信息
zhcsj43_oa
1
特性
输入电压范围 4.5V 至
60
V(绝对最大值
6
5V)
3.5A 持续电流、4.5A 最低峰值电感器电流限制
电流模式控制直流/直流转换器
92mΩ 高侧金属氧化物半导体场效应晶体管 (MOSFET)
轻负载条件下使用脉冲跳跃实现的高效率 Eco-mode。™
轻负载条件下使用集成型引导 (BOOT) 再充电场效应晶体管 (FET) 实现的低压降
146μA 静态工作电流
2μA 关断电流
100kHz 至 2.5MHz 的固定开关频率
同步至外部时钟
可调欠压闭锁 (UVLO) 电压和滞后
内部软启动
精确逐周期电流限制
过热、过压和频率折返保护
0.8V 1% 内部电压基准
8 引脚 HSOIC PowerPAD™封装
-40°C 至 150°C T
J
运行范围
使用 TPS54360B 并借助
WEBENCH® 电源设计器
创建定制设计方案