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
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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

  • 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 80V
    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

    参数

    与其它产品相比 升压转换器(集成开关) 邮件 下载到电子表格中
    Part number 立即下单 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 立即下单 3.1     40     1.259     75     2     1     300     1300     2.1     Enable     90     -40 to 125     Converter     Catalog     TSSOP | 16
    WSON | 16    
    LM2585 立即下单 4     40     1.23     60     4     1     85     115     11    
       
    98     -40 to 125     Converter     Catalog     DDPAK/TO-263 | 5
    TO-220 | 5    
    LM2586 立即下单 4     40     1.23     60     4     1     75     125     11     Enable
    Frequency Synchronization    
    98     -40 to 125     Converter     Catalog     DDPAK/TO-263 | 7
    TO-220 | 7    
    LM2587 立即下单 4     40     1.23     60     6.5     1     85     115     11    
       
    98     -40 to 125     Converter     Catalog     DDPAK/TO-263 | 5
    TO-220 | 5    
    TPS55340 立即下单 2.9     32     3     38     6.6     1     100     1200     0.5     Enable
    Frequency Synchronization
    Light Load Efficiency    
    90     -40 to 150     Converter     Catalog     HTSSOP | 14
    WQFN | 16