Torex Semiconductor Ltd. has launched mass production of the XCL223/224 Synchronous Buck “micro DC/DC” Converter with integrated coil. Minimum operating voltage is 2.5V & maximum operating temperature is 105°C

The XCL223/XCL224 series are ultra-small (external dimensions: 2.25mm x 1.5mm x h0.75mm) step-down micro DC/DC converters with an integrated coil and control IC. These converters achieve the world’s smallest class of miniaturization and height reduction among output types with an output current of 0.4A / 0.7A.

The operating voltage range is 2.5V to 5.5V, and 0.8 to 3.6V can be selected for the output voltage in steps of 0.05V (accuracy ±2.0%). The switching frequency is 3.0MHz, and either PWM control (XCL223) or PWM/PFM auto switching control (XCL224) can be selected for the control method. An ambient operating temperature from -40℃ up to +105℃ can be supported.

The XCL223/XCL224 series uses HiSAT-COT(*1), and is ideal for optical cables that are required to have a fast transient response, small PC peripheral devices, and portable or digital devices that incorporate a CPU.

XCL223/XCL224 Series Features:

1. Achieves the world’s smallest class of coil-integrated, step-down DC/DC converters in the output current 0.4A / 0.7A class
2. HiSAT-COT(*1) is used for a fast transient response
3. Can be used for applications such as optical devices, portable devices, and digital devices
4. High efficiency (90%: 4.2V⇒3.3V, at 300mA)
5. Operation temperature: -40℃～+105℃
6. Ideal for reducing PCB mounting space by miniaturization

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