**Part Number:**UCC28710

**Other Parts Discussed in Thread:**UCC28910

Hi all,

This is a high-voltage BUCK made with UCC28710. UCC28710 works in DCM mode. The input 30-150V, output 12V/3A.

1、I would like to know how this frequency is calculated. Is the calculation of the inductance value the same as the formula under CCM? If not, how to calculate it.

2、In DCM mode, the switching frequency will change with the load current. Does it have PSM mode at light load?