Hi,
I need your advice regarding on the inductor usage.
My DCDC specs are as below:
- Vin(min) = 17V
- Vin (max) = 25V
- Vout = 5.1V
- Iout = 2A
Based on WEBENCH (or product spec’s equation), it recommends to have the inductor value of 22uH.
But 22uH with Idc > 2A is very costly. This will make TI DCDC become no cost merit.
I am thinking of using 15uH, 10uH or 6.8uH inductor.
Can you please advise on what is the potential issue if we use smaller inductor value?
I foresee the ripple current will be high. Is there any way to compensate this issue?
Kindly advise
