SLVS004I April   1979  – August 2016 TL317

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and 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 Characteristic
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 NPN Darlington Output Drive
      2. 7.3.2 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 in Light Loads
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Adjustable Voltage Regulator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 0-V to 30-V Regulator Circuit
      3. 8.2.3 Regulator Circuit With Improved Ripple Rejection
      4. 8.2.4 Precision Current-Limiter Circuit
      5. 8.2.5 Tracking Preregulator Circuit
      6. 8.2.6 Slow-Turnon 15-V Regulator Circuit
      7. 8.2.7 50-mA Constant-Current Battery-Charger Circuit
      8. 8.2.8 Current-Limited 6-V Charger
      9. 8.2.9 High-Current Adjustable Regulator
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

10 Layout

10.1 Layout Guidelines

  • It is recommended that the input terminal be bypassed to ground with a bypass capacitor.
  • The optimum placement for the bypass capacitor is closest to the input terminal of the device and the system GND. Take care to minimize the loop area formed by the bypass-capacitor connection, the input terminal, and the system GND.
  • For operation at full rated load, it is recommended to use wide trace lengths to eliminate I × R drop and heat dissipation.

10.2 Layout Example

TL317 TL317_layout.gif Figure 14. TL317D Layout Example