ZHCSH33Y September   1997  – April 2020 LM317

PRODUCTION DATA.  

  1. 特性
  2. 应用
  3. 说明
    1.     Device Images
      1.      电池充电器电路
  4. 修订历史记录
  5. Device Comparison Table
  6. Pin Configuration and Functions
    1.     Pin Functions
  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. 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. 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. 12器件和文档支持
    1. 12.1 接收文档更新通知
    2. 12.2 支持资源
    3. 12.3 商标
    4. 12.4 静电放电警告
    5. 12.5 Glossary
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

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
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.
Line regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
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.
CADJ is connected between the ADJUST terminal and GND.