1.2V低工作电压超小型150mA高速电压调整器CXLD64185高速瞬态响应特性1kHz的纹波除去率70dB0.47μF小型相位补偿电容(CL)实现稳定工作 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
目录7.相关产品 产品概述 返回TOP CXLD64185系列是实现了高精度, 低噪声, 高纹波除去率, 低压差, 低消耗电流高速LDO电压调整器。本IC由基准电压源, 误差放大器, 晶体管驱动器, 电流限制电路, 相位补偿电路等构成。工作于低输入电源电压并且装入超小型封装USPN-4B02(0.75mm x 0.95mm),用容量0.47μF的小型相位补偿电容(CL)实现了稳定工作,最适于Logic系LSI附近的专用Local电源.具有高速瞬态响应特性,及70dB @1kHz的纹波除去率特性。从CE端子输入低电平使IC成待机状态。此外,能在待机状态时给稳定输出的电容(CL)充电而蓄积的电荷由VOUT端子-VSS端子的内部开关放电。此放电功能能使VOUT端子高速地返回到VSS电平。内置过电流保护电路,当输出电流达到限定电流时保护电路开始工作。The CXLD64185 series is a high speed LDO regulator that features high accurate, low noise, high ripple rejection, low dropout and low power consumption. The series consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, and a phase compensation circuit. This IC is suitable for a local power supply placed in adjacent to the system logic LSI or others, because of low input voltage operation, using an ultra small package USPN-4B02 (0.75mm x 0.95mm) and stable operation with a small phase compensation capacitor (CL) 0.47μF. Also, this IC has fast transient response and high ripple rejection (70dB @ 1kHz). The CE function enables the circuit to be in stand-by mode by inputting low level signal. In the stand-by mode, the series enables the electric charge at the output capacitor CL to be discharged via the internal switch, and as a result the VOUT pin quickly returns to the VSS level. The over current protection circuit is integrated and operates when the output current reaches current limit level. 产品特点 返回TOP
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