ZHCSG05
February 2017
TPS54560B-Q1
PRODUCTION DATA.
1
特性
2
应用
3
说明
4
修订历史记录
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
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) Terminal)
7.3.10
Accurate Current Limit Operation and Maximum Switching Frequency
7.3.11
Synchronization to RT/CLK Terminal
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 Input Voltage, 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
8.2.3.1
Safe Operating Area
8.3
Inverting Power
8.4
Split Rail Power Supply
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Examples
10.2.1
Estimated Circuit Area
11
器件和文档支持
11.1
器件支持
11.1.1
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
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)
DDA|8
MPDS092F
散热焊盘机械数据 (封装 | 引脚)
DDA|8
PPTD178C
订购信息
zhcsg05_oa
4
修订历史记录
日期
修订版本
初始版本
2017 年2 月
*
最初发布版本