High Voltage Step-Down Controller Optimizes Intermediate Bus Efficiency
It uses a constant frequency, current mode architecture with programmable loop compensation for excellent transient response and output regulation. Each PWM channel can produce output voltages from 0.5V to 13.2V and has a maximum input of 60V. Up to three LTC3886s can operate in parallel for 2-, 3-, 4-, or 6-phase operation.
See the video here.