The LTC3827IG-1#TRPBF is a single channel, synchronous, buck-boost switching regulator controller from Analog Devices. It is designed to seamlessly transition between buck and boost modes while maintaining a regulation output voltage. The device operates at up to 2MHz switching frequency, allowing for small, low profile components and greater loop stability. It also features programmable soft-start for gentle voltage ramp up, frequency foldback for improved efficiency at light loads, output disconnect, programmable current-limit, input undervoltage lockout, thermal shutdown and short-circuit protection.