XC9252 Series
Low Power Consumption Step-down DC/DC Controller IC
ETR05038-004
â– GENERAL DESCRIPTION
The XC9252 series is a 30V operation step-down DC/DC controller IC.
The external P-ch driver
transistor is used to achieve a stable operation under low input voltage.
Low ESR capacitors such as ceramic capacitors can be used for the load capacitor (CL).
A 0.
8V reference voltage source is incorporated, and the output voltage can be set freely from 1.
5V using external resistors (RFB1, RFB2).
280kHz to 550kHz can be selected for the switching frequency by connecting an external resistor to the ROSC pin.
The generation of unneeded noise can be reduced by this synchronization with an external CLK...