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DESCRIPTION：

 

The SCT2631A is 3.5A buck converter with wide input voltage, ranging from 4.5V to 60V, which integrates an 80mΩ high-side MOSFET. The SCT2631A, adopting the peak current mode control, supports the Pulse Skipping Modulation (PSM) which assists the converter on achieving high efficiency at light load or standby condition. 
The SCT2631A features programmable switching frequency from 100kHz to 800KHz 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 800KHz. The SCT2631A allows power conversion from high input voltage to low output voltage with a minimum 130ns on time of high-side MOSFET. 
The device offers programmable soft start to prevent inrush current during the startup of output voltage ramping. The SCT2631A features external loop compensation to provide the flexibility to optimize either loop stability or loop response. 
The SCT2631A provides cycle-by-cycle current limit, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in 4mm*4mm 10-pin DFN package.

 

 

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