Hello,
Datasheet P15 has equation(14) and use “Co(EFF) “.
“Co(EFF)2 should be the output capacitor but cutomer want to Know the meaning of (EFF).
Please advice the meaning of (EFF).
Regards.
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Hello,
Datasheet P15 has equation(14) and use “Co(EFF) “.
“Co(EFF)2 should be the output capacitor but cutomer want to Know the meaning of (EFF).
Please advice the meaning of (EFF).
Regards.
That equation is used for ceramic output capacitors. For ceramic capacitors, the actual capacitance is dependent on the applied dc voltage relative to the rated voltage of the capacitor. So Co(EFF) is the effective output capacitance after the dc bias effect is applied rather than the nominal value.