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PANGYO TECHNO VALLEY, South Korea--Silicon Mitus, Inc. (Silicon Mitus), an advanced specialist in Power Management Integrated Circuit (PMIC), announced its latest Buck-boost converter, the SM581x series. Buck-boost converters execute functions of elevating or lowering wide-ranging input voltages to a necessary output voltage.

As a synchronous rectification converter, SM581x is equipped with four internal power switcPANGYO TECHNO VALLEY, South Korea--Silicon Mitus, Inc. (Silicon Mitus), an advanced specialist in Power Management Integrated Circuit (PMIC), announced its latest Buck-boost converter, the SM581x series. Buck-boost converters execute functions of elevating or lowering wide-ranging input voltages to a necessary output voltage.hes that achieve power conversion at a high efficiency. This translates to maximized battery life, making SM581x largely ideal for mobile applications. The series delivers a higher efficiency in Buck-boost mode compared to its competing product and is characterized by both a higher output voltage accuracy and wider output voltage range (1.8V-5.5V) than competitors.

SM581x accounts for battery life through its low quiescent current value of 10µA. In light load conditions, SM581x products optimize power consumption by employing Power Saving Mode (PSM) and Dynamic Voltage Scaling (DVS) functions. Respectively, these mechanisms are responsible for minimizing switching losses and tailoring output voltage to the needs of the application in a responsive manner.

The new SM581x adjusts output voltage through its I2C interface, eliminating the need for output voltage setting via external resistors. Combining this with a 1.4mm x 2.3mm WLCSP package size, SM581x offers a strongly competitive solution size. Design-wise, a small solution size minimizes both board space and additional expenses on external components.

The SM581x series features 1.5A and 3A SM5812 converters, in addition to derivative product lines such as SM581xA and SM581xB that expand default output voltage options for customers. Dave Kim, Head of Mobile BU, expressed that in response to the expanding mobile market, “We aims to promptly develop and offer power management chip products that reflect customer needs”.