The LT3758IDD#PBF Switching Voltage Regulators High Input Voltage, Boost, Flyback, SEPIC and Inverting Controller is a high voltage switching regulator from Analog Devices. It is a versatile, highly efficient high input voltage regulator that can be used to deliver up to 200 watts of power in applications with an input voltage up to 68V. It includes a built-in switching frequency of 1.2MHz, adjustable output voltage, and active current limit for overload protection. The device supports multiple power conversion topologies, including boost, flyback, SEPIC, and inverting. It features internal lossless switching architecture and protected open-feedback loop levels. Its low noise operation and high efficiency make it ideal for demanding applications.