CXDC6579

CXDC6579系列稳压器是一种集成电路,它为降压开关稳压器提供所有的有源功能,能够以优良的线路和负载调节驱动3A负载。这些设备可用于3.3V、5V、12V的固定输出电压和可调输出版本。这些稳压器需要最少数量的外部元件,使用简单,包括内部频率补偿和固定频率振荡器。CXDC6579G系列在150 kHz的开关频率下工作,因此允许比低频开关稳压器所需的更小尺寸的滤波器组件。提供标准的5线到220封装,5针引线为单线选项,5线到263表面安装封装。几个不同的制造商提供了一系列标准电感器,这些电感器经过优化,可与CXDC6579G系列一起使用。这一特性大大简化了开关电源的设计。其他特性包括在规定的输入电压和输出负载条件下,输出电压的保证公差为±2%,振荡器频率的保证公差为±10%。包括外部关机,通常为80μA待机
当前。自保护功能包括输出开关的两级频率降低电流限制和故障条件下完全保护的超温关机。

降压开关稳压器线路负载调节驱动3A负载150kHz固定频率内部振荡器CXDC6579输入电压40V内部频率补偿低功耗待机模式

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   产品概述 返回TOPGFk嘉泰姆


The CXDC6579G series of regulators are integrated circuits that provide all active functions for a step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation. These devices are avail-able in fixed output voltages of 3.3V, 5V, 12V, and an adjust-able output version. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation†, and a fixed-frequency oscillator. The CXDC6579G series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 5-lead TO-220 package with 5 pins lead in one line options, and a 5-lead TO-263 surface mount package. A standard series of inductors are available from several different manufacturers optimized for use with the CXDC6579G series. This feature greatly simplifies the design of switch-mode power supplies. Other features include a guaranteed ±2% tolerance on output voltage under specified input voltage and output load conditions, and ±10% on the oscillator frequency. External shutdown is included, featuring typically 80 μA standby current. Self-protection features include a two stage frequency reducing current limit for the output switch and an over tem perature shutdown for complete protection under fault conditions.

   产品特点 返回TOPGFk嘉泰姆


※ 3.3V, 5V, 12V, and adjustable output versions (ADJ) GFk嘉泰姆

※ Adjustable version output voltage range, 1.25V to 37V±2% max over       line and load conditions GFk嘉泰姆

※ Available in TO-220 and TO-263 packages GFk嘉泰姆

※ Guaranteed 3A output load current GFk嘉泰姆

※ Input voltage range up to 40V GFk嘉泰姆

※ Requires only 4 external components GFk嘉泰姆

※ Excellent line and load regulation specifications GFk嘉泰姆

※ 150 kHz fixed frequency internal oscillator GFk嘉泰姆

※ TTL shutdown capability GFk嘉泰姆

※ Low power standby mode, IQ typically 80 μA GFk嘉泰姆

※ Uses readily available standard inductors GFk嘉泰姆

※ Thermal shutdown and current limit protectionGFk嘉泰姆

   应用范围 返回TOPGFk嘉泰姆


※ Simple high-efficiency step-down (buck) regulator , CAR DVD           GFk嘉泰姆

    electronic GFk嘉泰姆

※ On-card switching regulators , LCD-TV , LCD-monitor , ADSL GFk嘉泰姆

※ Positive to negative converterGFk嘉泰姆

   技术规格书(产品PDF) 返回TOP GFk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GFk嘉泰姆

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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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