Hello,
I have developed a power supply for a GSM module but have problems with loop stability.
The datasheet says:
For large output capacitance more than 40 μF application, TI recommends a feedforward capacitor to set the zero frequency (fFFZ) to 2 kHz.
What is meant by zero frequency in this case? Is this the right plane zero frequency without feedforward capacitor? Does it depend on the load transients or on the switching frequency of the boost?
Best regards
Raphael
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