CXDC6574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3A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55μA，CXDC6574工作效率高，峰值效率为90%。
保护功能包括循环电流限制、热关机和短路时的频率折叠。CXDC6574在SOP-8包中提供，操作时只需要很少的外部设备。
如果车辆识别号超过12V，如果不使用pin7功能，可以用上拉电阻器向车辆识别号输入端上拉100K欧姆，最好不要直接对车辆识别号短路。
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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
The CXDC6574 is a current-mode step-down DC-DC converter that generates up to 3A output current at 380kHz switching frequency. The device utilizes advanced BCD process for operation with input voltage up to +23V consuming only 55μA in shutdown mode, the CXDC6574 is highly efficient with peak efficiency at 90% when in operation.
Protection features include cycle-by-cycle current limit, thermal shutdown, and frequency fold back at short circuit. The CXDC6574 is available in SOP-8 package and requires very few external devices for operation.
If Vin is over 12V, if not use pin7 function , can pull-up a 100K ohm to Vin input with a pull-up resistor, be better not short to Vin dirrectly.
二.产品特点
3A Output Current
Efficiency up to nearly 90% @+5V /3A output
+3.85V to +23V Input Range
55μA Shutdown Supply Current
380kHz Switching Frequency
Adjustable Output Voltage from 1.22V to 0.85*VIN
Cycle-by-Cycle Current Limit Protection
Thermal Shutdown Protection
Frequency Fold Back at Short Circuit Low start up input voltage ;
Low dropout to nearly 0.7V
SOP-8 Package
三.应用范围
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)
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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