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首页 > 产品中心 > 电源管理 > DC降压型转换器 > 大电流耐高压降压型 >0%到100%的脉宽调制控制PWM控制的降压开关电流调节器CXDC6587输出电流2A输入电压3.6V至18V低纹波功率高效率和良好的瞬态特性
0%到100%的脉宽调制控制PWM控制的降压开关电流调节器CXDC6587输出电流2A输入电压3.6V至18V低纹波功率高效率和良好的瞬态特性
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CXDC6587由带PWM控制的降压开关电流调节器组成。该装置包括参考电流源、振荡电路、误差放大器、内部PMOS等。
CXDC6587具有低纹波功率、高效率和良好的瞬态特性。该PWM控制电路能够将占空比从0线性变化到100%。该转换器还包含一个误差放大电路和一个软启动电路,以防止启动时的s超调。内置使能功能、过流保护功能和短路保护功能,当OCP或SCP发生时,工作频率由410KHz降至60KHz。此外,内置内部补偿块以使外部组件计数最小。
这些集成电路可以作为降压开关稳压器。当与SOP-8L微型封装相结合时,它们是便携式设备的理想电源单元,具有低电流消耗等突出特点。由于该转换器可容纳高达16V的输入电压,因此在通过12V AC适配器工作时也是理想的选择。

0%到100%的脉宽调制控制PWM控制的降压开关电流调节器CXDC6587输出电流2A输入电压3.6V至18V低纹波功率高效率和良好的瞬态特性
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产品简介

                          目录f8H嘉泰姆

   1.产品概述      2.产品特点      3.应用范围     4.技术规格书下载(PDF文档)f8H嘉泰姆

   5.产品封装      6.电路原理图     7.相关产品f8H嘉泰姆

一.产品概述f8H嘉泰姆


     CXDC6587 consists of step-down switching current regulator with PWM control. The device includes a reference current source, oscillation circuit, error amplifier, internal PMOS and etc. f8H嘉泰姆

     CXDC6587 provides low-ripple power, high efficiency and excellent transient characteristics. The PWM control circuit is able to vary the duty ratio linearly from 0 up to 100%. This converter also contains an error amplifier circuit as well as a soft-start circuit that prevent s overshoot at startup. An enable function, an over current protect function and a short circuit protect function are built inside, and when OCP or SCP happens, the operation frequency will be reduced from 410KHz to 60KHz. Also, an internal compensation block is built in to minimum external component count.f8H嘉泰姆

    These ICs can function as step-down switching regulators. They serve as ideal power supply units for portable devices when coupled with the SOP-8L mini-package, providing such outstanding features as low current consumption. Since this converter can accommodate an input voltage of up to 16V, it is also ideal when operating via an 12V AC adaptor. f8H嘉泰姆

二.产品特点f8H嘉泰姆


  Input voltage: 3.6V to 18V.f8H嘉泰姆

  Output current: up to 2A .f8H嘉泰姆

  Duty ratio: 0% to 100% PWM controlf8H嘉泰姆

  Oscillation frequency: 410KHzf8H嘉泰姆

  Soft-start, Current limit, Enable functionf8H嘉泰姆

  Thermal Shutdown functionf8H嘉泰姆

  Built-in internal SW P-channel MOSf8H嘉泰姆

  High efficiency up to 90%f8H嘉泰姆

  SOP-8L Pb-Free Package.f8H嘉泰姆

三.应用范围f8H嘉泰姆


  LED lighting(照明或背光)  f8H嘉泰姆

四.技术规格书(产品PDF)f8H嘉泰姆


需要详细的PDF规格书请扫一扫微信联系我们,还可以获得免费样品以及技术支持f8H嘉泰姆

 QQ截图20160419174301.jpgf8H嘉泰姆

五.产品封装图f8H嘉泰姆


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六.电路原理图f8H嘉泰姆


blob.png   f8H嘉泰姆

七.相关芯片选择指南    更多同类产品......f8H嘉泰姆


DC/DC LED驱动
型号 详细说明
CXDC6572 2A同步整流,SOT23-5, 高效率小封装
CXDC6573A 2.2A, ACT4060/MP1410
CXDC6574 3A高效率DC-DC
CXDC6575 超低压差
CXDC6576 36V,3A替代AP1507
CXDC6577 2.5A-3A输出高频高效率高耐压替代MP2490
CXDC6578 3A DC/DC
CXDC6579 high-freq 3A DC/DC
CXDC6580 1.5A DC/DC
CXDC6581 60V高压恒压恒流,替代AP1509,AP1507,XL7005
CXDC6582 60V-30W-恒流-高精度亮度调节
CXDC6583 55V高耐压5A
CXDC6584 90V降压恒压大电流
CXDC6585 85V高耐压MOS内置
CXDC6586 高压600V的恒流LED驱动IC
CXDC6587  
CXDC6588  
CXDC6589  
CXDC6590  
CXDC6591  
CXDC6592