I would like to use LTC3777 controller for a 5VDC to 150VDC input and output of 12VDC/10A power supply. According to the datasheet, DRVCC voltage can be set from 6V to 10V in 1V increments with DRVSET pin .
Q1: When EXTVCC is not used (tied to ground), DRVSET is tied to SGND (6V configuration), and VIN = 5V, the internal VIN LDO is not able to generate 6V because VIN is less than 6V. Does this mean that the voltage of DRVCC is going to be equal to VIN?
Q2: If the DRVCC voltage is less than 6V, do I need to select the MOSFET which can be driven by whatever voltage is on the DRVCC?
Thank you for your help.