带防止突入电流300mA高速双路LDO小型电压调整器CXLD64215高精度高纹波抑制低压差过电流过热保护电路

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     CXLD64215系列产品是高精度,高纹波抑制,低压差,300mA高速双路小型CMOS电压调整器。把2个低导通电阻LDO安装在小型封装内，能实现高密度安装。由于采用了激光微调技术实现了±1.0％的高精度输出电压。通过控制各个EN引脚，能单独停止各个电压调整器的输出使其成待机状态。此外，在待机状态时，通过内部开关使输出电容(CL)的电荷放电，能使VOUT引脚高速地返回到VSS电平。输出滤波电容（CL）能对应陶瓷电容等低ESR电容。由于具有良好的瞬态响应特性，即使是在负载变动时也能提供稳定的输出电压。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。由于各个电压调整器被完全隔离，能把输出负载变动等对电压调整器之间的干扰抑制在极小的范围内。The CXLD64215 series is an ultra small CMOS dual LDO regulator, mounting 300mA 2-channel small high speed LDO. The series features high accuracy, high ripple rejection and low dropout voltage. The series is capable of high density board installation by the ultra small package of two low on-resistance regulators. Both output accuracies are ±1% by laser trimming. Each regulator can be turned off independently to be in stand-by mode by controlling EN pin. In this state, the electric charge at the output capacitor (CL) is discharged via the internal auto-discharge switch, and as a result the VOUT voltage quickly returns to the VSS level. The output stabilization capacitor (CL) is also compatible with low ESR ceramic capacitors. The high level of output stability is maintained even during frequent load fluctuations, due to the excellent transient response performance. Over current protection circuit and over heat protection circuit are mounted, these circuits start working when output current reaches junction temperature or limit current. The two regulators are completely isolated so that a cross talk during load fluctuations is minimizedeY8嘉泰姆

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