附带防止冲击电流功能的200mA高速LDO电压调整器CXLD64192输入电压1.7V~5.5V 75dB(1kHz时)高纹波抑制率 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
目录7.相关产品 产品概述 返回TOP CXLD64192系列产品是附带防止冲击电流功能的200mA高速LDO电压调整器。输入电压范围在1.7V~5.5V之间,输出电压以±1%的高精度对应1.2V、1.5V、1.8V、2.5V、2.8V、3.0V、3.3V。实现了输入输出电压差为240mV(IOUT=200mA、VOUT=3.0V)的低下降电压、75dB(1kHz时)的高纹波抑制率。通过用内置防止冲击电流电路在IC启动时把为输出电容(CL)充电而形成的VIN-VOUT之间的冲击电流限定在95mA以下,抑制在VIN输入端产生的电压变动。此外,作为保护功能还搭载了过电流保护电路(反馈),当输出电流达到限定电流时保护电路开始工作。对于短路时的过电流也能用反馈功能使电流下降到60mA(TYP.)的安全范围。The CXLD64192 series is a 200mA high speed LDO regulator that features high accurate, high ripple rejection and low dropout. The series consists of a voltage reference, an error amplifier, a driver transistor, a current limiter, a phase compensation circuit and an inrush current protection circuit. The output voltage is selectable from 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V and 3.3V. 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 series is also compatible with low ESR ceramic capacitors, which provides stable output voltage. This stability can be maintained even during load fluctuations due to the excellent transient response. 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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