Tris has developed the XCL233 series of coil uniform DC/DC converters

     Tris Semiconductor Corporation has developed the XCL233 series of coil-one DC/DC converters. This series is equipped with the output voltage switching function, using ultra-low current consumption circuit and PFM control mode of coil-type step-down synchronous rectification DC/DC converter. The VSET output voltage switching function is the function of switching two output voltages through signal input. When this feature is installed on a low-power MCU with a wide operating voltage range, providing low voltage during standby and high voltage during activities such as sensor communication can drive the device efficiently, helping to significantly extend the battery life of small devices.

     The ultra-low consumption current circuit reduces current consumption to 200nA, while the PFM control method significantly improves efficiency under light loads. In particular, the power consumption of MCUS and SOCs is increasingly low, and their efficiency in the output current range (several μA to 10μA) during sleep is important for battery life, where the efficiency of traditional DC/DC converters in this current range is less than 20%, while the efficiency of XCL233 is significantly improved to more than 80%. In addition, the XCL233 can choose a low output voltage of 0.5V, which is suitable for low-voltage SOCs.

     With the integrated control IC and coil, only two small ceramic capacitors need to be attached to achieve ultra-small, light load high efficiency and low EMI. The simplicity of the design of this product provides strong support for the subsequent design engineering of customers. The XCL233 series is suitable for iot/mobile/wearable devices that value high efficiency under limited installation area and light load conditions, as well as for all devices that value battery time.