6.4 Low Pass Filter Pin

The MIC38300 features a Low Pass Filter (LPF) pin for adjusting the switcher frequency. By tuning the frequency, the user can further improve output ripple without losing efficiency. Adjusting the frequency is accomplished by connecting a resistor between the LPF and SW pins. A small value resistor would increase the frequency while a larger value resistor decreases the frequency. Recommended R_LPF value is 25 kΩ. Please see Figure 3-12 to Figure 3-16 in the Typical Characteristics section for more details.

DS20007145A

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