I'm working on programmable power module based on LT3763. The main power input is +48 Vdc and I have on board also +7.5 V dc.
My question: is it possible to power LT3764 Vin with mentioned bias of +7.5 V while power MOSFETs is powered by +48 Vdc? Idea is to reduce dissipation of internal regulator. Vout should be from 0 to +20 V (i.e. above bias voltage).
Many thanks in advance,
Yes you can use the 7.5V rail to power the IC
Base on our simulation connecting IVINP and IVINN to 48Vin or 7.5Vin does not affect its performance or introduce additional heat.
The way that the component is mounted on the board has a big impact…