ZHCSYA6D May   1998  – May 2025 LM138 , LM338

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 Recommended Operating Conditions
    3. 5.3 Thermal Information
    4. 5.4 Electrical Characteristics: LM138
    5. 5.5 Electrical Characteristics: LM338
    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 NPN Darlington Output Drive
      2. 6.3.2 Overload Block
      3. 6.3.3 Programmable Feedback
    4. 6.4 Device Functional Modes
      1. 6.4.1 Normal Operation
      2. 6.4.2 Operation With Low Input Voltage
      3. 6.4.3 Operation at Light Loads
      4. 6.4.4 Operation in Self Protection
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 Constant 5-V Regulator
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
          1. 7.2.1.2.1 External Capacitors
          2. 7.2.1.2.2 Load Regulation
          3. 7.2.1.2.3 Protection Diodes
        3. 7.2.1.3 Application Curves
    3. 7.3 System Examples
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 接收文档更新通知
    2. 8.2 支持资源
    3. 8.3 Trademarks
    4. 8.4 静电放电警告
    5. 8.5 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

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5.6 Typical Characteristics

LM138 LM338 Current Limit
 
Figure 5-1 Current Limit
LM138 LM338 Current Limit
 
Figure 5-3 Current Limit
LM138 LM338 Dropout Voltage
 
Figure 5-5 Dropout Voltage
LM138 LM338 Temperature Stability
 
Figure 5-7 Temperature Stability
LM138 LM338 Minimum Operating Current
 
Figure 5-9 Minimum Operating Current
LM138 LM338 Ripple Rejection
 
Figure 5-11 Ripple Rejection
LM138 LM338 Line Transient Response
 
Figure 5-13 Line Transient Response
LM138 LM338 Current Limit
 
Figure 5-2 Current Limit
LM138 LM338 Load Regulation
 
Figure 5-4 Load Regulation
LM138 LM338 Adjustment Current
 
Figure 5-6 Adjustment Current
LM138 LM338 Output Impedance
 
Figure 5-8 Output Impedance
LM138 LM338 Ripple Rejection
 
Figure 5-10 Ripple Rejection
LM138 LM338 Ripple Rejection
 
Figure 5-12 Ripple Rejection
LM138 LM338 Load Transient Response
 
Figure 5-14 Load Transient Response