National Semiconductor Corp. introduced the LM5119, a high voltage, dual-channel, dual-phase, synchronous buck controller with emulated current-mode (ECM) control. The LM5119 enables regulation of single or dual high-current voltages directly from inputs as high as 65V, simplifying high voltage DC-DC conversion and reducing PCB footprint by up to 50 percent versus alternative solutions requiring two conversion stages. The LM5119 features a unique combination of high performance, flexibility and ease-of-use for demanding telecommunication, automotive and industrial control applications that require accurate voltage regulation. The device expands National’s portfolio of high voltage synchronous buck controllers to address higher load currents.