LM5000 宽输入电压 2A 开关模式稳压器 | 德州仪器 TI.com.cn

LM5000 (正在供货)

宽输入电压 2A 开关模式稳压器

宽输入电压 2A 开关模式稳压器 - LM5000
数据表
 

描述

The LM5000 is a monolithic integrated circuit specifically designed and optimized for flyback, boost or forward power converter applications. The internal power switch is rated for a maximum of 80V, with a current limit set to 2A. Protecting the power switch are current limit and thermal shutdown circuits. The current mode control scheme provides excellent rejection of line transients and cycle-by-cycle current limiting. An external compensation pin and the built-in slope compensation allow the user to optimize the frequency compensation. Other distinctive features include softstart to reduce stresses during start-up and an external shutdown pin for remote ON/OFF control. There are two operating frequency ranges available. The LM5000-3 is pin selectable for either 300kHz (FS Grounded) or 700kHz (FS Open). The LM5000-6 is pin selectable for either 600kHz (FS Grounded) or 1.3MHz (FS Open). The device is available in a low profile 16-lead TSSOP package or a thermally enhanced 16-lead LLP package.


特性

  • 80V internal switch
  • Operating input voltage range of 3.1V to 40V
  • Pin selectable operating frequency
       300kHz/700kHz (-3)
       600kHz/1.3MHz (-6)
  • Adjustable output voltage
  • External compensation
  • Input undervoltage lockout
  • Softstart
  • Current limit
  • Over temperature protection
  • External shutdown
  • Small 16-Lead TSSOP or 16-Lead LLP package

  • 查看更多内容

    参数 与其它产品相比 升压转换器(集成开关)

     
    Vin (Min) (V)
    Vin (Max) (V)
    Vout (Min) (V)
    Vout (Max) (V)
    Switch Current Limit (Typ) (A)
    Regulated Outputs (#)
    Switching Frequency (Min) (kHz)
    Switching Frequency (Max) (kHz)
    Iq (Typ) (mA)
    Features
    Duty Cycle (Max) (%)
    Operating Temperature Range (C)
    Type
    Rating
    Package Group
    LM5000 LM2585 LM2586 LM2587 TPS55340
    3.1     4     4     4     2.9    
    40     40     40     40     32    
    1.259     1.23     1.23     1.23     3    
    75     60     60     60     38    
    2     4     4     6.5     6.6    
    1     1     1     1     1    
    300     85     75     85     100    
    1300     115     125     115     1200    
    2.1     11     11     11     0.5    
    Enable       Enable
    Frequency Synchronization    
    N/A     Enable
    Frequency Synchronization
    Light Load Efficiency    
    90     98     98     98     90    
    -40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 150    
    Converter     Converter     Converter     Converter     Converter    
    Catalog     Catalog     Catalog     Catalog     Catalog    
    TSSOP | 16
    WSON | 16    
    DDPAK/TO-263 | 5
    TO-220 | 5    
    DDPAK/TO-263 | 7
    TO-220 | 7    
    DDPAK/TO-263 | 5
    TO-220 | 5    
    HTSSOP | 14
    WQFN | 16    
    New! Interactive Design
    Click to instantly view a schematic, charts, Bill of Materials, and Operating Values.

    WEBENCH® Designer LM5000

      最小   最大 范围
    输入电压  V 3.1 to 40.0V
    输出电压  V 3.1 to 80.0V
    输出电流  A ≤ 2.7A
    环境温度  °C -40 to 125°C


    覆盖面积 BOM成本 效率


    Preview design