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DESCRIPTION：

 

The SCT9430 is 3A synchronous buck converters with up to 36V wide input voltage range, which fully integrates an 80mΩ high-side MOSFET and a 42mΩ low-side MOSFET to provide high efficiency step-down DCDC conversion. The SCT9430 adopts peak current mode control with the integrated compensation network, which makes SCT9430 easily to be used by minimizing the off-chip component count. The SCT9430 supports the Pulse Skipping Modulation (PSM) in Light Load Condition. 
The SCT9430 is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The SCT9430 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 SCT9430 offers output over-voltage protection, cycle-by-cycle peak current limit, and thermal shutdown protection. The device is available in a low profile TSOT23-6 package.

 

 

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