In the SOIC package, the switching controller meets most application requirements. There is sufficient capacity to generate switching controller for outputs 1. You should keep dc regulator at -40°C degrees or higher. There should be 85°C temperature above 85°C degrees Celsius when dc regulator runs. Switching can take place at a maximum frequency of 1MHz.
ISL6522IBZS2698 Features
ISL6522IBZS2698 Applications
There are a lot of Intersil (Renesas Electronics America) ISL6522IBZS2698 DC to DC converter applications.