Impact of Source Inductance on Synchronous Buck Regulator FET Shoot Through Performance

Shoot through is a common design consideration for the synchronous buck regulator. Several papers have been published that show how shoot through is influenced by FET silicon parameters such as RG or CGd/(Cgd+Cgs) (Kocon, 2006), But only limited work has been done on the influence of source inductance on shoot through. In this paper, we will present a detailed analysis of how source inductance impacts shoot through.