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LM2662 Oscillator Frequency是做什么用的?

Other Parts Discussed in Thread: LM2662

大神们:

请问lm2662的FC引脚和osc引脚联合控制Oscillator Frequency,是做什么用的?换句话说,我用lm2662作为电源反向芯片,对处理信号的中心频率有什么影响么?

谢谢

  • Hi

        chargepump是通过内chargepump电容实现开关切换而实现反向电压的:

        

        Oscillator Frequency 频率就是这些开关的切换频率(除以2).

        这个是电源转换,和你外部信号处理的频率不相关。