The Microchip Buck Regulator is a simple to use because they require a minimum number of external components and include internal frequency compensation and a fixed frequency oscillator. The LM2576 series buck regulator offers a high efficiency replacement for popular three terminal adjustable linear regulators. It substantially reduces the size of the heat sink, and in many cases no heat sink is required.
Specified 3A output current Wide input voltage range of 4V to 40V Wide output voltage range of 1.23V to 37V Requires only four external components 52 kHz fixed frequency internal oscillator Uses readily available standard inductors Thermal shutdown and current limit protection 100% electrical thermal limit built in
