The SCT9331C is 3A asynchronous buck converters with up to 28V wide input voltage range, which fully integrates 115mΩ high-side MOSFET to provide high efficiency step-down DC-DC conversion. The SCT9331C adopts peak current mode control with the integrated compensation network, which makes SCT9331C easily to be used by minimizing the off-chip component count. The SCT9331C supports the Pulse Skipping Modulation (PSM) with typical 25uA Ultra-Low Quiescent. The SCT9331C is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The SCT9331C features Frequency Spread Spectrum FSS with ±6% jittering span of the 400kHz switching frequency and modulation rate 1/512 of switching frequency to reduce the conducted EMI. The converter has proprietary designed gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off time, which further erases high frequency radiation EMI
noise caused by the MOSFETs hard switching.The SCT9331C offers output over-voltage protection,cycle-by-cycle peak current limit, and thermal
shutdown protection. The device is available in SOP-8L package.