The LTC3775IUD#PBF is a high frequency synchronous step-down voltage mode DC/DC controller from Analog Devices. This part is a controller with pulse width modulation (PWM) and synchronous rectification designed for high current DC/DC power conversion. It provides complete control for high efficiency DC/DC converter applications, including power supplies up to 100W. It offers an adjustable internal switching frequency, a power good output, and integrated protection features. This part includes a 5-bit digital dimming control, soft-start, remotely enable control, and over-voltage protection. It also features fault protection for an output overvoltage, input overvoltage, shorted output, over-temperature, and input undervoltage.