There is also a strong demand for space-saving,creating a need for enhanced small package lineups. The recently launched XC9263/XC9264 series of synchronous step-down DC/DC converters with 18V operation, an internaldriver transistor and an output current of 500mA are suitable power ICs for industrial equipment, large household appliances,and low power consumption systems that target the above market needs.
The input voltage range is 3.0 to 18.0V, and the output voltage range is 1.0 to 15.0V (accuracy±1.5%). The switching frequency can be selected from 500kHz, 1.2MHz, 2.2MH to match the application. PWM control (XC9263) or PWM/PFM auto switching control (XC9264) can be selected for the operation mode and high efficiency and low ripple voltage are realised across a full range of loads, from light to heavy. The soft start function is set internally at 1.0ms (TYP.).
This can also be adjusted by using an external resistor and capacitor. Over-current limiting, auto reset (XC9263B/XC9264B), integration latch (XC9263A/XC9264A), and thermal shutdown are available as internal protective functions. In addition, the Power Good function indicates the output voltage status.The SOT-25 package or the small USP-6C package (1.8×2.0x0.6mm) is optional to match the application.