ZHCSQS5F
April 2006 – January 2024
TPS5420
PRODUCTION DATA
1
1
特性
2
应用
3
说明
4
静电放电警告
5
Ordering Information
6
Pin Assignments
6.1
Terminal Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Application Information
8.1
Functional Block Diagram
8.2
Detailed Description
8.2.1
Oscillator Frequency
8.2.2
Voltage Reference
8.2.3
Enable (ENA) and Internal Slow Start
8.2.4
Undervoltage Lockout (UVLO)
8.2.5
Boost Capacitor (BOOT)
8.2.6
Output Feedback (VSENSE)
8.2.7
Internal Compensation
8.2.8
Voltage Feed Forward
8.2.9
Pulse-Width-Modulation (PWM) Control
8.2.10
Overcurrent Limiting
8.2.11
Overvoltage Protection
8.2.12
Thermal Shutdown
8.2.13
PCB Layout
8.2.14
Application Circuits
8.2.15
Design Procedure
8.2.15.1
Design Parameters
8.2.15.2
Switching Frequency
8.2.15.3
Input Capacitors
8.2.15.4
Output Filter Components
8.2.15.4.1
Inductor Selection
8.2.15.4.2
Capacitor Selection
40
41
8.2.15.5
Output Voltage Setpoint
8.2.15.6
Boot Capacitor
8.2.15.7
Catch Diode
8.2.15.8
Additional Circuits
8.2.15.9
Circuit Using Ceramic Output Filter Capacitors
8.2.15.10
Output Filter Component Selection
8.2.15.11
External Compensation Network
8.3
Advanced Information
8.3.1
Output Voltage Limitations
8.3.2
Internal Compensation Network
8.3.3
Thermal Calculations
8.4
Performance Graphs
9
Revision History
封装选项
机械数据 (封装 | 引脚)
D|8
MSOI002K
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsqs5f_oa
zhcsqs5f_pm
2
应用
消费类电子:机顶盒、DVD、LCD 显示屏
工业用和车载音频电源
电池充电器、大功率 LED 电源
12V/24V 分布式电源系统