ZHCSSP5D
January 2009 – September 2023
TPS54332
PRODUCTION DATA
1
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
Switching Characteristics
6.7
Typical Characteristics: Characterization Curves
6.8
Typical Characteristics: Supplemental Application Curves
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
Voltage Reference (Vref)
7.3.3
Bootstrap Voltage (BOOT)
7.3.4
Enable and Adjustable Input Undervoltage Lockout (VIN UVLO)
7.3.5
Programmable Slow Start Using the SS Pin
7.3.6
Error Amplifier
7.3.7
Slope Compensation
7.3.8
Current Mode Compensation Design
7.3.9
Overcurrent Protection and Frequency Shift
7.3.10
Overvoltage Transient Protection
7.3.11
Thermal Shutdown
7.4
Device Functional Modes
7.4.1
Operation With VIN < 3.5 V
7.4.2
Operation With EN Control
7.4.3
Eco-mode
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
Switching Frequency
8.2.2.3
Output Voltage Set Point
8.2.2.4
Input Capacitors
8.2.2.5
Output Filter Components
8.2.2.6
Inductor Selection
8.2.2.7
Capacitor Selection
8.2.2.8
Compensation Components
8.2.2.9
Bootstrap Capacitor
8.2.2.10
Catch Diode
8.2.2.11
Output Voltage Limitations
8.2.2.12
Power Dissipation Estimate
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
8.4.3
Estimated Circuit Area
8.4.4
Electromagnetic Interference (EMI) Considerations
9
Device and Documentation Support
9.1
Device Support
9.1.1
Development Support
9.1.1.1
Custom Design with WEBENCH® Tools
9.2
支持资源
9.3
接收文档更新通知
9.4
Trademarks
9.5
静电放电警告
9.6
术语表
10
Mechanical, Packaging, and Orderable Information
1
特性
3.5V 至 28V 输入电压范围
可调节输出电压低至 0.8V
集成式 80mΩ 高侧 MOSFET 支持高达 3.5A 的持续输出电流
使用脉冲跳跃 Eco-mode 在轻负载条件下实现高效率
固定 1MHz 开关频率
1μA 关断静态电流(典型值)
可调节慢启动限制浪涌电流
可编程 UVLO 阈值
过压瞬态保护
逐周期电流限制、频率折返和热关断保护
采用热增强型 8 引脚 SOIC
PowerPAD™
集成电路封装
为 30V 输入电压转换器使用更高频率、更低 IQ 和改进 EMI 的
TPS62933
使用 TPS54332 并借助
WEBENCH®
Power Designer
创建定制设计方案
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