Minimum DCR for 10uH Inductor for 1.3V Buck

[awattenhofer]

What is the minimum DCR needed for the 10uH inductor for the 1.3V buck?

Thanks,

Amy

[Simonr]

Hi Amy

The DCR value is simulated to and verified at <500mOhm, and should not be bigger than 2Ohm. Try to keep it as low as possible for efficiency. It's more important that lsat >50mA.

Best regards,

Simon