XCL225B0K1H2

XCL225B0K1H2 is an XCL225 series 0.5A inductor built-in step-down “micro DC/DC” converter IC with a built-in high-side / low-side driver transistor. It has an operating voltage range of 3.0V to 18.0V and can support 0.5A 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 (RFB1, RFB2). 1.2MHz 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, and low power systems.

• PWM control, PWM/PFM automatic control methods
• 85% at 12V/5V, 1mA efficiency
• Adjustable by RC soft-start time
• Over current protection, integral latch method
• 4.3μH typical inductance (test freq.=1MHz)
• 1200mA typical inductor rated current (∆T=+40°C)
• DFN3030-10B package, operating ambient temperature range from -40 to +105°C

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