ZHCS517E April   2000  – June 2019 LM2587

PRODUCTION DATA.  

  1. 1 特性
  2. 2 典型 应用
  3. 3 说明
    1.     Device Images
      1.      反激式稳压器
  4. 4 修订历史记录
  5. 5 Pin Configurations
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESDRatings
    3. 6.3  Recommended Operating Ratings
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics: 3.3 V
    6. 6.6  Electrical Characteristics: 5 V
    7. 6.7  Electrical Characteristics: 12 V
    8. 6.8  Electrical Characteristics: Adjustable
    9. 6.9  Electrical Characteristics: All Output Voltage Versions
    10. 6.10 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Step-Up (Boost) Regulator Operation
  8. 8 Application And Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Typical Boost Regulator Applications
      2. 8.2.2 Typical Flyback Regulator Applications
        1. 8.2.2.1 Transformer Selection (T)
        2. 8.2.2.2 Transformer Footprints
          1. 8.2.2.2.0.1 T4
      3. 8.2.3 Design Requirements
      4. 8.2.4 Detailed Design Procedure
        1. 8.2.4.1 Custom Design With Webench® Tools
        2. 8.2.4.2 Programming Output Voltage (Selecting R1 And R2)
        3. 8.2.4.3 Short Circuit Condition
        4. 8.2.4.4 Flyback Regulator Input Capacitors
        5. 8.2.4.5 Switch Voltage Limits
        6. 8.2.4.6 Output Voltage Limitations
        7. 8.2.4.7 Noisy Input Line Condition)
        8. 8.2.4.8 Stability
    3. 8.3 Additional Application Examples
      1. 8.3.1 Test Circuits
  9. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
    3. 9.3 Heat Sink/Thermal Considerations
      1. 9.3.1 European Magnetic Vendor Contacts
      2. 9.3.2 Coilcraft
      3. 9.3.3 Pulse Engineering
  10. 10器件和文档支持
    1. 10.1 器件支持
      1. 10.1.1 第三方米6体育平台手机版_好二三四免责声明
      2. 10.1.2 开发支持
        1. 10.1.2.1 使用 Webench® 工具创建定制设计方案
    2. 10.2 接收文档更新通知
    3. 10.3 社区资源
    4. 10.4 商标
    5. 10.5 静电放电警告
    6. 10.6 Glossary
  11. 11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

6.5 Electrical Characteristics: 3.3 V

Specifications with standard type face are for TJ = 25°C, and those in bold apply over full Operating Temperature Range. Unless otherwise specified, VIN = 5V.
PARAMETER TEST CONDITIONS TYP MIN MAX UNIT
SYSTEM PARAMETERS Test Circuit of Figure 61(3)
VOUT Output Voltage VIN = 4V to 12V
ILOAD = 400 mA to 1.75A		 3.3 3.17/3.14 3.43/3.46 V
ΔVOUT/
ΔVIN 		Line Regulation VIN = 4V to 12V
ILOAD = 400 mA		 20 50/100 mV
ΔVOUT/
ΔILOAD 		Load Regulation VIN = 12V
ILOAD = 400 mA to 1.75A		 20 50/100 mV
η Efficiency VIN = 12V, ILOAD = 1A 75 %
UNIQUE DEVICE PARAMETERS(4)
VREF Output Reference
Voltage		 Measured at Feedback Pin
VCOMP = 1.0V		 3.3 3.242/3.234 3.358/3.366 V
ΔVREF Reference Voltage
Line Regulation		 VIN = 4V to 40V 2.0 mV
GM Error Amp
Transconductance		 ICOMP = −30 μA to +30 μA
VCOMP = 1.0V		 1.193 0.678 2.259 mmho
AVOL Error Amp
Voltage Gain		 VCOMP = 0.5V to 1.6V
RCOMP = 1.0 MΩ(5) 		260 151/75 V/V
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