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UCC28703: I am after a 20mA PWM constant current regulator

Part Number: UCC28703


I am after a 20mA constant current PWM regulator for an audio class G/H power stage, see the attached schematic to replace linear transistor Q1 & Q2.

Must work from 2 Volts to 300 Volts.

What part do I need?

4000W amp Power Stages.pdf