این قطعه یک نوع رگولاتور میباشد که دارای ولتاژ قابل تنظیم است همچنین دارای ویژگی محدود کننده جریان است پکیج این آی سی از نوع TO220 میباشد

The LM1577/LM2577 are monolithic integrated circuits that provide all of the power and control functions for step-up (boost), flyback, and forward converter switching regulators. The device is available in three different output voltage versions: 12V, 15V, and adjustable. Requiring a minimum number of external components, these regulators are cost effective, and simple to use. Listed in this data sheet are a family of standard inductors and flyback transformers designed to work with these switching regulators.