JAJS852E May   1996  – May 2019 LM2586

PRODUCTION DATA.  

  1. 1 特長
  2. 2 代表的なアプリケーション
  3. 3 概要
    1.     Device Images
      1.      ブロック図
  4. 4 改訂履歴
  5. 5 概要（続き）
  6. 6 Pin Configurations
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Ratings
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics: 3.3 V
    6. 7.6 Electrical Characteristics: 5 V
    7. 7.7 Electrical Characteristics: 12 V
    8. 7.8 Electrical Characteristics: Adjustable
    9. 7.9 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 Flyback Regulator Operation
      2. 8.3.2 Step-Up (Boost) Regulator Operation
      3. 8.3.3 Programming Output Voltage (Selecting R1 And R2)
      4. 8.3.4 Shutdown Control
      5. 8.3.5 Frequency Adjustment
      6. 8.3.6 Frequency Synchronization
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 Typical Flyback Regulator Applications
        1. 9.2.1.1 Design Requirements
          1. 9.2.1.1.1 Transformer Selection (T)
          2. 9.2.1.1.2 Transformer Footprints
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Custom Design With WEBENCH® Tools
          2. 9.2.1.2.2 Flyback Regulator Input Capacitors
          3. 9.2.1.2.3 Switch Voltage Limits
          4. 9.2.1.2.4 Output Voltage Limitations
          5. 9.2.1.2.5 Noisy Input Line Condition
          6. 9.2.1.2.6 Stability
      2. 9.2.2 Typical Boost Regulator Applications
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
    3. 9.3 System Examples
      1. 9.3.1 Test Circuits
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Heat Sink/Thermal Considerations
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 デバイス・サポート
      1. 12.1.1 デベロッパー・ネットワークの製品に関する免責事項
      2. 12.1.2 開発サポート
        1. 12.1.2.1 WEBENCH®ツールによるカスタム設計
    2. 12.2 ドキュメントの更新通知を受け取る方法
    3. 12.3 コミュニティ・リソース
    4. 12.4 商標
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 Glossary
  13. 13メカニカル、パッケージ、および注文情報

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

7.7 Electrical Characteristics: 12 V

PARAMETER TEST CONDITIONS TYP MIN MAX UNIT
SYSTEM PARAMETERS Test Circuit of Figure 55(1)
VOUT Output Voltage VIN = 4V to 10V
ILOAD = 0.2A to 0.8A		 12 11.52/11.40 12.48/12.60 V
ΔVOUT/
ΔVIN 		Line Regulation VIN = 4V to 10V ILOAD = 0.2A 20 100/200 mV
ΔVOUT/
ΔILOAD 		Load Regulation VIN = 10V
ILOAD = 0.2A to 0.8A		 20 100/200 mV
η Efficiency VIN = 10V, ILOAD = 0.6A 93%
UNIQUE DEVICE PARAMETERS (2)
VREF Output Reference
Voltage		 Measured at Feedback Pin
VCOMP = 1.0V		 12 11.79/11.76 12.21/12.24 V
ΔVREF Reference Voltage
Line Regulation		 VIN = 4V to 40V 7.8 mV
GM Error Amp
Transconductance		 ICOMP = −30 μA to +30 μA
VCOMP = 1.0V		 0.328 0.186 0.621 mmho
AVOL Error Amp
Voltage Gain		 VCOMP = 0.5V to 1.6V
RCOMP = 1.0 MΩ (3) 		70 41/21 V/V
(1) External components such as the diode, inductor, input and output capacitors can affect switching regulator performance. When the LM2586 is used as shown in Figure 54 and Figure 55, system performance will be as specified by the system parameters.
(2) All room temperature limits are 100% production tested, and all limits at temperature extremes are specified via correlation using standard Statistical Quality Control (SQC) methods.
(3) A 1.0 MΩ resistor is connected to the compensation pin (which is the error amplifier output) to ensure accuracy in measuring AVOL.