高速LDO逆流防止功能CXLD64187驱动晶体管防止逆流的功能可使VOUT引脚电压比VIN引脚电压高时不产生逆流电流VOUT引脚与蓄电池连接时也能抑制蓄电池的消耗量适合于备用电源 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
目录7.相关产品 产品概述 返回TOP CXLD64187系列是实现了高精度,低噪声,高纹波抑制,低压差,低消耗电流的高速电压调整器。内部由基准电压源,误差放大器,驱动晶体管,电流限定电路,过热保护电路,逆流防止电路,相位补偿电路等构成。从CE引脚输入低电平能使IC成待机状态。此外内置了过电流保护电路和过热保护电路,当输出电流达到限定电流或结温度达到限定温度时保护电路开始工作。驱动晶体管防止逆流的功能可使VOUT引脚电压比VIN引脚电压高时不产生逆流电流。VOUT引脚与蓄电池连接时也能抑制蓄电池的消耗量,最适合于备用电源。The CXLD64187 series is a highly accurate, low noise, high ripple rejection, low dropout, and low power consumption high speed voltage regulator. The series consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a thermal protection circuit, a reverse current protection circuit and a phase compensation circuit. The CE function enables the entire circuit to be placed in a stand-by state by inputting a low level signal to the CE pin. Over-current protection and thermal protection circuits are integrated. The protection circuit starts to operate when either output current reaches the current limit level or junction temperature reaches the temperature limit. With the reverse current protection function of a driver transistor, the reverse current flow is prohibited when VOUT voltage is higher than VIN voltage. For an example, when a battery is connected to the VOUT pin, battery current will not flow back to the CXLD64187. 产品特点 返回TOP
应用范围 返回TOP USB products and HDMI equipments ● E-book Readers / Electronic dictionaries ● Smart Phones / Mobile phones ● Portable game consoles ● Modules (Wireless, Camera, etc.) 技术规格书(产品PDF) 返回TOP 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!
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