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DESCRIPTION：

 

The SCT2632B is 3.5A buck converter with wide input voltage, ranging from 4.3V to 60V, which integrates an 130mΩ high-side MOSFET. The SCT2632B, 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 switching frequency is programmable from 100kHz to 2.2MHz with two setting modes, resistor setting frequency mode and the clock synchronization mode, to optimizes either the power efficiency or the external components’ sizes. The SCT2632B allows power conversion from high input voltage to low output voltage with a minimum 100ns on-time of high-side MOSFET. The SCT2632B is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The SCT2632B features Frequency Spread Spectrum FSS with ±6% jittering span and modulation rate 1/512 of switching frequency to reduce the conducted EMI. 
The device offers adjustable soft start to prevent inrush current during the startup of output voltage ramping. The SCT2632B supports monotonic start with prebiased output.
The SCT2632B provides cycle-by-cycle current limit, hiccup mode for over current protection, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in an 8-pin ESOP-8 package.

 

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