ZHCSF67
July 2016
TPS54335-2A
PRODUCTION DATA.
1
特性
2
应用范围
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
Switching Characteristics
6.8
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
Light-Load Operation
7.3.3
Voltage Reference
7.3.4
Adjusting the Output Voltage
7.3.5
Enabling and Adjusting Undervoltage Lockout
7.3.6
Error Amplifier
7.3.7
Slope Compensation and Output Current
7.3.8
Safe Startup into Pre-Biased Outputs
7.3.9
Bootstrap Voltage (BOOT)
7.3.10
Output Overvoltage Protection (OVP)
7.3.11
Overcurrent Protection
7.3.11.1
High-Side MOSFET Overcurrent Protection
7.3.11.2
Low-Side MOSFET Overcurrent Protection
7.3.12
Thermal Shutdown
7.3.13
Small-Signal Model for Loop Response
7.3.14
Simple Small-Signal Model for Peak Current-Mode Control
7.3.15
Small-Signal Model for Frequency Compensation
7.4
Device Functional Modes
7.4.1
Operation With VI < 4.5 V (minimum VI)
7.4.2
Operation With EN Control
7.4.3
Operation With EN Control
8
Application and Implementation
8.1
Application Information
8.1.1
Supplementary Guidance
8.1.2
The DRC Package
8.2
Typical Applications
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Switching Frequency
8.2.2.2
Output Voltage Set Point
8.2.2.3
Undervoltage Lockout Set Point
8.2.2.4
Input Capacitors
8.2.2.5
Output Filter Components
8.2.2.5.1
Inductor Selection
8.2.2.5.2
Capacitor Selection
8.2.2.6
Compensation Components
8.2.2.7
Bootstrap Capacitor
8.2.2.8
Power Dissipation Estimate
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
11.1.1
开发支持
11.2
文档支持
11.2.1
相关文档
11.3
相关链接
11.4
接收文档更新通知
11.5
社区资源
11.6
商标
11.7
静电放电警告
11.8
Glossary
12
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
DRC|10
MPDS117L
散热焊盘机械数据 (封装 | 引脚)
DRC|10
QFND013N
订购信息
zhcsf67_oa
4 修订历史记录
日期
修订版本
注释
2016 年7 月
*
最初发布版本