SLVS044Y September   1997  – April 2020 LM317

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Battery-Charger Circuit
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 NPN Darlington Output Drive
      2. 8.3.2 Overload Block
      3. 8.3.3 Programmable Feedback
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Operation
      2. 8.4.2 Operation With Low Input Voltage
      3. 8.4.3 Operation at Light Loads
      4. 8.4.4 Operation In Self Protection
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
    3. 9.3 System Examples
      1. 9.3.1  0-V to 30-V Regulator Circuit
      2. 9.3.2  Adjustable Regulator Circuit With Improved Ripple Rejection
      3. 9.3.3  Precision Current-Limiter Circuit
      4. 9.3.4  Tracking Preregulator Circuit
      5. 9.3.5  1.25-V to 20-V Regulator Circuit With Minimum Program Current
      6. 9.3.6  Battery-Charger Circuit
      7. 9.3.7  50-mA Constant-Current Battery-Charger Circuit
      8. 9.3.8  Slow Turn-On 15-V Regulator Circuit
      9. 9.3.9  AC Voltage-Regulator Circuit
      10. 9.3.10 Current-Limited 6-V Charger Circuit
      11. 9.3.11 Adjustable 4-A Regulator Circuit
      12. 9.3.12 High-Current Adjustable Regulator Circuit
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Support Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

7.5 Electrical Characteristics

over recommended ranges of operating virtual junction temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS(1) MIN TYP MAX UNIT
Line regulation(2) VI  – VO = 3 V to 40 V TJ = 25°C 0.01 0.04 %/V
TJ = 0°C to 125°C 0.02 0.07
Load regulation IO = 10 mA to 1500 mA CADJ(4) = 10 μF,
TJ = 25°C		 VO ≤ 5 V 25 mV
VO ≥ 5 V 0.1 0.5 %VO
TJ = 0°C to 125°C VO ≤ 5 V 20 70 mV
VO ≥ 5 V 0.3 1.5 %VO
Thermal regulation 20-ms pulse, TJ = 25°C 0.03 0.07 %VO/W
ADJUST terminal current 50 100 μA
Change in
ADJUST terminal current		 VI  – VO = 2.5 V to 40 V, PD ≤ 20 W, IO = 10 mA to 1500 mA 0.2 5 μA
Reference voltage VI  – VO = 3 V to 40 V, PD ≤ 20 W, IO = 10 mA to 1500 mA 1.2 1.25 1.3 V
Output-voltage
temperature stability		 TJ = 0°C to 125°C 0.7 %VO
Minimum load current
to maintain regulation		 VI  – VO = 40 V 3.5 10 mA
Maximum output current VI  – VO  ≤ 15 V, PD < PMAX(3) 1.5 2.2 A
VI  – VO  ≤ 40 V, PD < PMAX(3), TJ = 25°C 0.15 0.4
RMS output noise voltage
(% of VO)		 f = 10 Hz to 10 kHz, TJ = 25°C 0.003 %VO
Ripple rejection VO = 10 V, f = 120 Hz CADJ = 0 μF(4) 57 dB
CADJ = 10 μF(4) 62 64
Long-term stability TJ = 25°C 0.3 1 %/1k hr
(1) Unless otherwise noted, the following test conditions apply: |VI  – VO| = 5 V and IOMAX = 1.5 A, TJ = 0°C to 125°C. Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible.
(2) Line regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
(3) Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA) / θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
(4) CADJ is connected between the ADJUST terminal and GND.