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-9 to -12V DC to +5V DC conversion with using only -9 to-12V and Ground as Supply



Hi,

My need is to DC-DC conversion.

i/p available is -9 to -12V DC and Ground(0V) , Driving Current available is 20mA

Requirement: Want to generate isolated +5V DC.

Waiting for ur helpful suggestions of circuitery or any chip which available in market to fulfill my requirements.

thanks and regards,

Varun