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LTM8024_74_65 sharing SYNC and BIAS pins

Category: Hardware
Product Number: LTM8024

Hi.

I would wanted to ask you if the next configuration will work or if there are any issues with this way of connecting the regulators. The idea is to make use of the +5V output to BIAS all the regulators, as most of the time, the circuit will have all the regulators ON. If we need to switch OFF +5V, the rest of the converters will be working in a less efficient way (BIAS pulled-down). The only reason for having the possibility of switching OFF +5V , +9V and +12V is if any problem is detected in the circuit the regulators are powering. I hope you can give me your opinion about this. This is a simplified diagram (I also attach the image file):



Thank you in advance.