ZHCSH33Z September   1997  – April 2025 LM317

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Device Comparison Table
  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 (Legacy Chip)
    5. 6.5 Thermal Information (New Chip)
    6. 6.6 Electrical Characteristics
    7. 6.7 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 NPN Darlington Output Drive
      2. 7.3.2 Overload Block
      3. 7.3.3 Programmable Feedback
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation
      2. 7.4.2 Operation With Low Input Voltage
      3. 7.4.3 Operation at Light Loads
      4. 7.4.4 Operation In Self Protection
  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
      3. 8.2.3 Application Curves
    3. 8.3 System Examples
      1. 8.3.1  0V to 30V Regulator Circuit
      2. 8.3.2  Adjustable Regulator Circuit With Improved Ripple Rejection
      3. 8.3.3  Precision Current-Limiter Circuit
      4. 8.3.4  Tracking Preregulator Circuit
      5. 8.3.5  1.25V to 20V Regulator Circuit With Minimum Program Current
      6. 8.3.6  Battery-Charger Circuit
      7. 8.3.7  50mA, Constant-Current, Battery-Charger Circuit
      8. 8.3.8  Slow Turn-On 15V Regulator Circuit
      9. 8.3.9  AC Voltage-Regulator Circuit
      10. 8.3.10 Current-Limited 6V Charger Circuit
      11. 8.3.11 Adjustable 4A Regulator Circuit
      12. 8.3.12 High-Current Adjustable Regulator Circuit
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
        1. 8.5.1.1 Thermal Considerations
          1. 8.5.1.1.1 Heat Sink Requirements
          2. 8.5.1.1.2 Heat Sinking Surface-Mount Packages
            1. 8.5.1.1.2.1 Heatsinking the SOT-223 (DCY) Package
            2. 8.5.1.1.2.2 Heat Sinking the TO-263 (KTT) Package
      2. 8.5.2 Layout Examples
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Device Nomenclature
    2. 9.2 接收文档更新通知
    3. 9.3 支持资源
    4. 9.4 Trademarks
    5. 9.5 静电放电警告
    6. 9.6 术语表
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

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6.7 Typical Characteristics

LM317 Load Regulation (Legacy Chip)
 
Figure 6-1 Load Regulation (Legacy Chip)
LM317 Load Regulation (New Chip)
 
Figure 6-3 Load Regulation (New Chip)
LM317 Load Transient Response (Legacy Chip)
 
Figure 6-5 Load Transient Response (Legacy Chip)
LM317 Line Regulation (Legacy Chip)
 
Figure 6-7 Line Regulation (Legacy Chip)
LM317 Output Voltage vs Input Voltage, VOUT = 5V (New Chip)
 
Figure 6-9 Output Voltage vs Input Voltage, VOUT = 5V (New Chip)
LM317 Ripple Rejection vs Output Voltage (Legacy Chip)
 
Figure 6-11 Ripple Rejection vs Output Voltage (Legacy Chip)
LM317 Ripple Rejection vs Output Voltage (New Chip)
 
Figure 6-13 Ripple Rejection vs Output Voltage (New Chip)
LM317 Ripple Rejection vs Output Current (New Chip)
 
Figure 6-15 Ripple Rejection vs Output Current (New Chip)
LM317 Adjustment Current vs Temperature (New Chip)
 
Figure 6-17 Adjustment Current vs Temperature (New Chip)
LM317 Temperature Stability (New Chip)
 
Figure 6-19 Temperature Stability (New Chip)
LM317 Output Impedance vs Frequency (New Chip)
 
Figure 6-21 Output Impedance vs Frequency (New Chip)
LM317 Load Regulation (Legacy Chip)
 
Figure 6-2 Load Regulation (Legacy Chip)
LM317 Load Transient Response (Legacy Chip)
 
Figure 6-4 Load Transient Response (Legacy Chip)
LM317 Load Transient Response (New Chip)
 
Figure 6-6 Load Transient Response (New Chip)
LM317 Output Voltage vs Input Voltage, VOUT = VREF (New Chip)
 
Figure 6-8 Output Voltage vs Input Voltage, VOUT = VREF (New Chip)
LM317 Ripple Rejection vs Output Current (Legacy Chip)
 
Figure 6-10 Ripple Rejection vs Output Current (Legacy Chip)
LM317 Ripple Rejection vs Frequency (Legacy Chip)
 
Figure 6-12 Ripple Rejection vs Frequency (Legacy Chip)
LM317 Ripple Rejection vs Frequency (New Chip)
 
Figure 6-14 Ripple Rejection vs Frequency (New Chip)
LM317 Current Limit Threshold (New Chip)
 
Figure 6-16 Current Limit Threshold (New Chip)
LM317 Dropout Voltage vs Temperature (New Chip)

 

Figure 6-18 Dropout Voltage vs Temperature (New Chip)
LM317 Minimum Operating Current (New Chip)
 
Figure 6-20 Minimum Operating Current (New Chip)
LM317 Line Transient Response (New Chip)
 
Figure 6-22 Line Transient Response (New Chip)