The LM2576T-12 with DC-DC Converters Step-Down Fixed 1 4V 40V 12V 3A TO-220-5 RoHS is a power supply integrated circuit manufactured by HTC Korea. It is a buck-type switching regulator with an input voltage range of 4V to 40V, output of 13.5V ±4%, and 3A output current, making it suitable for a variety of applications. The circuit has a built-in switching transistor, current limiting, feedback circuit, and thermal shut-down, allowing the circuit to withstand over-current and over-temperature conditions. The package size is 5mm x 5mm, and it is RoHS compliant for all applicable environmental regulations.