ZHCSIT5C September   2018  – April 2024 LM5164

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Control Architecture
      2. 6.3.2  Internal VCC Regulator and Bootstrap Capacitor
      3. 6.3.3  Regulation Comparator
      4. 6.3.4  Internal Soft Start
      5. 6.3.5  On-Time Generator
      6. 6.3.6  Current Limit
      7. 6.3.7  N-Channel Buck Switch and Driver
      8. 6.3.8  Synchronous Rectifier
      9. 6.3.9  Enable/Undervoltage Lockout (EN/UVLO)
      10. 6.3.10 Power Good (PGOOD)
      11. 6.3.11 Thermal Protection
    4. 6.4 Device Functional Modes
      1. 6.4.1 Shutdown Mode
      2. 6.4.2 Active Mode
      3. 6.4.3 Sleep Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Custom Design With WEBENCH® Tools
        2. 7.2.2.2 Switching Frequency (RRON)
        3. 7.2.2.3 Buck Inductor (LO)
        4. 7.2.2.4 Output Capacitor (COUT)
        5. 7.2.2.5 Input Capacitor (CIN)
        6. 7.2.2.6 Type-3 Ripple Network
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
        1. 7.4.1.1 Compact PCB Layout for EMI Reduction
        2. 7.4.1.2 Feedback Resistors
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 第三方产品免责声明
      2. 8.1.2 Development Support
        1. 8.1.2.1 Custom Design With WEBENCH® Tools
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 接收文档更新通知
    4. 8.4 支持资源
    5. 8.5 Trademarks
    6. 8.6 静电放电警告
    7. 8.7 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DDA|8
散热焊盘机械数据 (封装 | 引脚)
订购信息

7.2.3 Application Curves

LM5164 Conversion Efficiency (Log Scale)Figure 7-2 Conversion Efficiency (Log Scale)
LM5164 Load and Line Regulation Performance
Figure 7-4 Load and Line Regulation Performance
LM5164 No-Load Start-up with VIN
VIN = 24 VIOUT = 0 A
Figure 7-6 No-Load Start-up with VIN
LM5164 No-Load Start-up and Shutdown with EN/UVLO
VIN = 24 VIOUT = 0 A
Figure 7-8 No-Load Start-up and Shutdown with EN/UVLO
LM5164 Pre-bias Start-up with EN/UVLO
VIN = 24 VIOUT = 0 A
Figure 7-10 Pre-bias Start-up with EN/UVLO
LM5164 Short Circuit Recovery
VIN = 24 VLoad = Short to 0 A
Figure 7-12 Short Circuit Recovery
LM5164 No-Load Switching
VIN = 24 VIOUT = 0 A
Figure 7-14 No-Load Switching
LM5164 CISPR 25 Class 5 Conducted Emissions Plot, 150 kHz to 30 MHz
VIN = 48 V Load = 1 A Rsnub = 1 Ω, Csnub = 680 pF
Figure 7-16 CISPR 25 Class 5 Conducted Emissions Plot, 150 kHz to 30 MHz
LM5164 Conversion Efficiency (Linear Scale)Figure 7-3 Conversion Efficiency (Linear Scale)
LM5164 Load Step Response
VIN = 24 VIOUT = 0.25 A to 1 A at 0.1 A/μs
Figure 7-5 Load Step Response
LM5164 Full-Load Start-up with VIN
VIN = 24 VIOUT = 1 A (Resistive)
Figure 7-7 Full-Load Start-up with VIN
LM5164 Full-Load Start-up and Shutdown with EN/UVLO
VIN = 24 VIOUT = 1 A (Resistive)
Figure 7-9 Full-Load Start-up and Shutdown with EN/UVLO
LM5164 Short Circuit Applied
VIN = 24 VLoad = 0 A to Short
Figure 7-11 Short Circuit Applied
LM5164 No Load to Short Circuit/Short Circuit Recovery
VIN = 24 VLoad = 0 A to Short to .0 A
Figure 7-13 No Load to Short Circuit/Short Circuit Recovery
LM5164 Full-Load Switching
VIN = 24 VIOUT = 1 A
Figure 7-15 Full-Load Switching
LM5164 CISPR 25 Class 5 Conducted Emissions Plot, 30 MHz to 108 MHz
VIN = 48 V Load = 1 A Rsnub = 1 Ω, Csnub = 680 pF
Figure 7-17 CISPR 25 Class 5 Conducted Emissions Plot, 30 MHz to 108 MHz