各位老大,求教:
3.4V输入,输出电压大于2.8V输出后(0.1A),输出纹波很大(Vripp=0.5V, Tripp=124us)。电感4.7uH,输出电容88uF。请教如何改进?哪些方向可以调整?
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Hi
电路上主要注意comp的补偿电路。 器件上主要注意功率电感饱和电流足够大。
然后就是严格参照datasheet layout说明和参考进行布板。