Consumption of only 30µA in Operation
The XC9252 can operate up to 30V but is able to withstand surge voltages of up to 46V for 400ms and is designed specifically for applications that require high efficiency and low power consumption. The XC9252 requires only 30uA when operating in PFM mode under no load conditions. Highly efficient, stable power supplies, with output currents of more than 3A can be realized and the switching frequency can be set to any value from 280kHz to 550kHz by connecting an external resistor to the ROSC pin.
Attached are more details available in the datasheet.
In case you should have additional question, please contact Johannes Kornfehl.