FEATURES：

 

 

DESCRIPTION：

 

The SCT2420Q is 2A synchronous buck converters with wide input voltage, ranging from 3.8V to 40V, which integrates an 160mΩ high-side MOSFET and an 80mΩ low-side MOSFET. The SCT2420Q, adopting the peak current mode control, supports the Pulse Skipping Modulation (PSM) with typical 25uA low quiescent current which assists the converter on achieving high efficiency at light load or standby condition. The SCT2420Q features programmable switching frequency from 100kHz to 2.1MHz with an external resistor, which provides the flexibility to optimize either
efficiency or external component size. The converter supports external clock synchronization with a frequency band from 100KHz to 2.1MHz. The
SCT2420Q allows power conversion from high input voltage to low output voltage with a minimum 80ns ontime of high-side MOSFET. The SCT2420Q is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The SCT2420Q
features Frequency Spread Spectrum FSS with ±6% jittering span of the switching frequency and modulation rate 1/512 of switching frequency to reduce the conducted EMI. The SCT2420Q offers cycle-by-cycle current limit and hiccup over current protection, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in an 8-pin thermally enhanced SOP-8 package.

 

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