efficiency of mc34063

Thread Starter

bug13

Joined Feb 13, 2012
2,002
Hi

Recently I am playing with the MC34063, I find that the efficiency of this chip is very low, the best I can get is about 60% at 100KHz.

Is this normal for this chip? or did I do something wrong here?

Thanks

NOTE:

I am just using the boost converter configuration in the datasheet, boosting 5V to 14V @ 100mA
 
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