XC9263B755ER-G, DC-DC Switching Synchronous Buck Regulator, Adjustable, 3 V to 18 V in, 1 V-15 V/500 mA out

XC9263B755ER-G is a XC9263 series 18V operation 0.5A synchronous step-down DC/DC converter IC with a built-in high-side / low-side driver transistor. This has operating voltage range of 3.0V~18.0V and it can support 500mA as an output current with high-efficiency. Compatible with Low ESR capacitors such as ceramic capacitors for the load capacitor (CL). 0.75V reference voltage source is incorporated in the IC, and the output voltage can be set to a value from 1.0V to 15.0V using external resistors. 500KHz or 1.2MHz or 2.2MHz can be selected for the switching frequency. In PWM/PFM automatic switchover control, IC can change the control method between PWM and PFM based on the output current requirement and as a result IC can achieve high efficiency over the full load range. Application includes hot water supply system, recorders, camcorders, refrigerators, air-conditioners, low power systems.

• PWM/PFM auto, PWM control methods
• 85% at 12V→5V, 1mA efficiency
• Adjustable by RC soft-start time
• Automatic recovery, thermal shutdown protection circuits
• USP-6C package, operating ambient temperature range from -40 to +105°C