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LM34927: Power supply to IC LM34927SD/NOPB

Part Number: LM34927
Other Parts Discussed in Thread: LM2587, LM5158, LM5156

Hello All,

We are using Isolated Fly-Buck Converter LM34927SD/NOPB. This is typical application circuit based on datasheet

But we have input power supply of -48V .

Please Suggest the power supply connection.

Currently I am planning to connect 0V to VIN pin and -48V to RTN pin. Is it the correct way? If not please suggest right connection?

Thanks!!!