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。
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[ 产品资料下载 ]
目录
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）
一.产品概述
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.
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.
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.
二.产品特点
Input voltage: 3.6V to 18V.
Output current: up to 2A .
Duty ratio: 0% to 100% PWM control
Oscillation frequency: 410KHz
Soft-start, Current limit, Enable function
Thermal Shutdown function
Built-in internal SW P-channel MOS
High efficiency up to 90%
SOP-8L Pb-Free Package.
三.应用范围
LED lighting(照明或背光)
四.技术规格书（产品PDF)
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！
五.产品封装图
六.电路原理图
七.相关芯片选择指南 更多同类产品......
| 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 | |
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