این قطعه نوعی رگولاتور میباشد با ولتاژ خروجی قابل تنظیم و جریان خروجی 5A همچنین پکیج این آی سی از نوع TO220 است

The LM2678 series of regulators are monolithic integrated circuits which provide all of the active functions for a step down (buck) switching regulator capable of driving up to 5A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ON-resistance DMOS power switch. The series consists of fixed output voltages of 3.3V, 5V and 12V and an adjustable output version.