2.2A输出电流电流模式降压型DC转换器380kHz开关频率5V至23V输入CXDC6573A循环电流限制热关机

CXDC6573A是一种电流模式降压DC-DC转换器，在380kHz开关频率下产生高达2.2A的输出电流。该装置采用先进的BCD工艺，在关机模式下，输入电压高达+23V，功耗仅为15μA，CXDC6573A效率高，工作时的峰值效率为92%。保护功能包括循环电流限制、热关机和短路时的频率折叠。CXDC6573A在SOP-8包中提供，操作时只需要很少的外部设备。它可以取代CXDC6573A而不改变外部元件和PCB布局。在应用中，如果不使用pin7（en）功能，可以让pin7打开，可以用上拉电阻上拉到Vin，但不能直接对Vin短路。

                          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）

   5.产品封装      6.电路原理图     7.相关产品

一.产品概述

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  The CXDC6573A is a current-mode step-down DC-DC converter that generates up to 2.2A output current at 380kHz switching frequency. The device utilizes advanced BCD process for operation with input voltage up to +23V consuming only 15μA in shutdown mode, the CXDC6573A is highly efficient with peak efficiency at 92% when in operation. 

   Protection features include cycle-by-cycle current limit, thermal shutdown, and frequency fold back at short circuit. The CXDC6573A is available in SOP-8 package and requires very few external devices for operation. 

   It can replace CXDC6573A without change external components and PCB layout.

    In application , if not use the pin7(en) function , can let the pin7 open , can pull-up to Vin with a pull-up resistor, but can not short to Vin dirrectly.

二.产品特点

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  2.2A Output Current

  Efficiency up to 92% @+5V output

  +5V to +23V Input Range

 15μA Shutdown Supply Current 380kHz Switching Frequency

  Adjustable Output Voltage from 1.23V to 0.85*VIN

 Cycle-by-Cycle Current Limit Protection

 Thermal Shutdown Protection

  Frequency Fold Back at Short Circuit

 Stability with Wide Range of Capacitors,

 

  SOP-8 Package

三.应用范围

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  TFT LCD Monitors

  Portable DVDs

  NET CARD

  Telecom Power Supplies

  DSL and Cable Modems and Routers

  LCD TV    

四.技术规格书（产品PDF)

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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

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六.电路原理图

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七.相关芯片选择指南      更多同类产品......

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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