ZHCSIT5B september   2018  – august 2023 LM5164

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 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
  8. 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
  9. 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
  10. 9 Power Supply Recommendations
  11. 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
  12. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 第三方产品免责声明
      2. 11.1.2 Development Support
        1. 11.1.2.1 Custom Design With WEBENCH® Tools
    2. 11.2 Related Documentation
    3. 11.3 接收文档更新通知
    4. 11.4 支持资源
    5. 11.5 Trademarks
    6. 11.6 静电放电警告
    7. 11.7 术语表
  13. 12Mechanical, Packaging, and Orderable Information

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机械数据 (封装 | 引脚)
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订购信息

8.2.3 Application Curves

GUID-B14B2899-6915-430F-8FA8-B95C28F904D0-low.gifFigure 8-2 Conversion Efficiency (Log Scale)
GUID-A94827E1-674E-4E4E-A808-C9600D488060-low.gif
Figure 8-4 Load and Line Regulation Performance
GUID-CBBF38DF-66FA-4312-A6FD-09349B973B81-low.jpg
VIN = 24 VIOUT = 0 A
Figure 8-6 No-Load Start-up with VIN
GUID-78F9F2EB-30E3-4F53-856E-B809C87C9280-low.jpg
VIN = 24 VIOUT = 0 A
Figure 8-8 No-Load Start-up and Shutdown with EN/UVLO
GUID-EA674D76-C125-4C36-86BE-7F399DE9A8A4-low.jpg
VIN = 24 VIOUT = 0 A
Figure 8-10 Pre-bias Start-up with EN/UVLO
GUID-63AD0216-7E75-46A7-9DBA-CBD9AA720D15-low.jpg
VIN = 24 VLoad = Short to 0 A
Figure 8-12 Short Circuit Recovery
GUID-AE5F9ACB-C4AE-4398-90ED-0A24E51FAA43-low.jpg
VIN = 24 VIOUT = 0 A
Figure 8-14 No-Load Switching
GUID-0EE2D84B-7462-4CE0-8E09-CE8D5BD5C2CF-low.gif
VIN = 48 VLoad = 1 ARsnub = 1 Ω, Csnub = 680 pF
Figure 8-16 CISPR 25 Class 5 Conducted Emissions Plot, 150 kHz to 30 MHz
GUID-D7B80BDC-2C83-4571-9B01-C9285E006208-low.gifFigure 8-3 Conversion Efficiency (Linear Scale)
GUID-EAE1D665-9903-45E3-8129-B42E6A7BDA59-low.jpg
VIN = 24 VIOUT = 0.25 A to 1 A at 0.1 A/μs
Figure 8-5 Load Step Response
GUID-5D8BD908-9BB6-4698-AABF-84BEC5C4FC1B-low.jpg
VIN = 24 VIOUT = 1 A (Resistive)
Figure 8-7 Full-Load Start-up with VIN
GUID-A514D094-FCD0-4E2A-B645-486D1807B29B-low.jpg
VIN = 24 VIOUT = 1 A (Resistive)
Figure 8-9 Full-Load Start-up and Shutdown with EN/UVLO
GUID-9ABBBB19-035E-4B64-BAE4-23720F1AAEB9-low.jpg
VIN = 24 VLoad = 0 A to Short
Figure 8-11 Short Circuit Applied
GUID-A36DA15E-9F0C-4411-9F74-9E82184F22B9-low.jpg
VIN = 24 VLoad = 0 A to Short to .0 A
Figure 8-13 No Load to Short Circuit/Short Circuit Recovery
GUID-7AA3B069-5EC8-4CE1-924D-AA3CE25E6EBA-low.jpg
VIN = 24 VIOUT = 1 A
Figure 8-15 Full-Load Switching
GUID-EFDECDCF-9BFA-42DC-A95C-4E1C54E74F41-low.gif
VIN = 48 VLoad = 1 ARsnub = 1 Ω, Csnub = 680 pF
Figure 8-17 CISPR 25 Class 5 Conducted Emissions Plot, 30 MHz to 108 MHz