ZHCSIT4A September   2018  – March 2019 LM5164-Q1

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      典型应用
      2.      典型应用效率，VOUT = 12V
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Control Architecture
      2. 7.3.2  Internal VCC Regulator and Bootstrap Capacitor
      3. 7.3.3  Regulation Comparator
      4. 7.3.4  Internal Soft Start
      5. 7.3.5  ON-Time Generator
      6. 7.3.6  Current Limit
      7. 7.3.7  N-Channel Buck Switch and Driver
      8. 7.3.8  Synchronous Rectifier
      9. 7.3.9  Enable/Undervoltage Lockout (EN/UVLO)
      10. 7.3.10 Power Good (PGOOD)
      11. 7.3.11 Thermal Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode
      2. 7.4.2 Active Mode
      3. 7.4.3 Sleep Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Custom Design With WEBENCH® Tools
        2. 8.2.2.2 Switching Frequency (RRON)
        3. 8.2.2.3 Buck Inductor (LO)
        4. 8.2.2.4 Output Capacitor (COUT)
        5. 8.2.2.5 Input Capacitor (CIN)
        6. 8.2.2.6 Type 3 Ripple Network
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Compact PCB Layout for EMI Reduction
      2. 10.1.2 Feedback Resistors
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 第三方产品免责声明
      2. 11.1.2 开发支持
        1. 11.1.2.1 使用 WEBENCH® 工具定制设计方案
    2. 11.2 相关文档
    3. 11.3 接收文档更新通知
    4. 11.4 社区资源
    5. 11.5 商标
    6. 11.6 静电放电警告
    7. 11.7 术语表
  12. 12机械、封装和可订购信息

封装选项

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

8.2.3 Application Curves

LM5164-Q1 D001_snvsb51.gifFigure 13. Conversion Efficiency (Log Scale)
LM5164-Q1 D003_snvsb51.gif
Figure 15. Load and Line Regulation Performance
LM5164-Q1 StartUp_Vin24V_Vout12V_noLoad.jpg
VIN = 24 V IOUT = 0 A
Figure 17. No-Load Start-up with VIN
LM5164-Q1 StartUpEN_Vin24V_Vout12V_noLoad.jpg
VIN = 24 V IOUT = 0 A
Figure 19. No-Load Start-up and Shutdown with EN/UVLO
LM5164-Q1 StartUpEN prebias_Vin24V_Vout12V_noLoad.jpg
VIN = 24 V IOUT = 0 A
Figure 21. Pre-bias Start-up with EN/UVLO
LM5164-Q1 ShortCircuit OFF_Vin24V_Vout12V.jpg
VIN = 24 V Load = Short to 0 A
Figure 23. Short Circuit Recovery
LM5164-Q1 OutRipple_Vin24V_Vout12V_noLoad.jpg
VIN = 24 V IOUT = 0 A
Figure 25. No-Load Switching
LM5164-Q1 D002_snvsb51.gifFigure 14. Conversion Efficiency (Linear Scale)
LM5164-Q1 LoadTrans_Vin24V_Vout12V_0p25 to 1ALoad.jpg
VIN = 24 V IOUT = 0.25 A to 1 A at 0.1 A/μs
Figure 16. Load Step Response
LM5164-Q1 StartUp_Vin24V_Vout12V_1A Load.jpg
VIN = 24 V IOUT = 1 A (Resistive)
Figure 18. Full-Load Start-up with VIN
LM5164-Q1 StartUpEN_Vin24V_Vout12V_1ALoad.jpg
VIN = 24 V IOUT = 1 A (Resistive)
Figure 20. Full-Load Start-up and Shutdown with EN/UVLO
LM5164-Q1 ShortCircuit ON_Vin24V_Vout12V.jpg
VIN = 24 V Load = 0 A to Short
Figure 22. Short Circuit Applied
LM5164-Q1 ShortCircuit Cycle_Vin24V_Vout12V.jpg
VIN = 24 V Load = 0 A to Short to 0 A
Figure 24. No Load to Short Circuit/Short Circuit Recovery
LM5164-Q1 OutRipple_Vin24V_Vout12V_1ALoad.jpg
VIN = 24 V IOUT = 1 A
Figure 26. Full-Load Switching