30mA输出电流高速LDO电压调整器CXLD64186高精度低噪声高纹波除去率低压差的CMOS工艺陶瓷电容等低ESR电容 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
目录7.相关产品 产品概述 返回TOP CXLD64186系列产品是实现了高精度,低噪声,高纹波除去率,低压差的CMOS工艺正电压LDO电压调整器IC。内部由基准电压源,误差放大器,驱动晶体管,电流限制电路,相位补偿电路等构成。给CE端子输入低电平能使IC成待机状态。此外,CXLD64186B系列产品在待机状态时,由VOUT端子-VSS端子之间的内部开关能使稳定输出用电容(CL)的充电电荷放电。此放电功能可使VOUT端子高速地返回VSS电位。稳定输出的电容(CL)能使用陶瓷电容等低ESR电容。激光微调能以0.05V的间隔内部设定0.8V~5.0V范围的输出电压。限流电路(foldback电路)具有限制输出电流和保护输出端子短路的功能。消耗电流只有25μA的低消耗电流而能实现良好的瞬态响应特性。因为把电流限定值设定为50mA(TYP),对不需要30mA以上输出电流的应用,能以确切的数值起到保护过电流的作用。此外USP-4封装能节省电路空间。The CXLD64186 series is a high accuracy, low noise, and low dropout CMOS LDO regulator. The series includes a reference voltage source, an error amplifier, a driver transistor, a current limiter, and a phase compensation circuit. The CE function enables the entire circuit to be turned off by a low level input signal to the CE pin. In this stand-by state, the CXLD64186B series can discharge the electric charge stored at the output capacitor through the internal auto-discharge switch, and as a result the VOUT pin quickly returns to the VSS level. The output stabilization capacitor (CL) is also compatible with low ESR ceramic capacitors. Output voltage is selectable in 0.05V increments within a range of 0.8V~5.0V. The current limit fold-back circuit works as a short circuit protection as well as the output current limiter. The series achieves a fast response with only 25μA of low power consumption. The current limit is set to 50mA (TYP.) so that the device is optimized to protect the circuit from over-current. It is ideally suited for applications requiring 30 mA or less. A small USP-4 package makes high density mounting possible. 产品特点 返回TOP
应用范围 返回TOP
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