https://www.futureelectronics.com/npi/power-integrations-linkswitch-tnz-offline-switcher-ic . DER-965Q is a 10 W non-isolated buck power supply for 400 V BEV automotive applications. This single-side board design uses AEC Q-qualified components. The ultra compact design allows 60-550 VDC wide input range and a 15 VDC / 650 mA output.