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. Frequency Spread Spectrum FSS with ±6% jittering span of the 400kHz switching frequency and The SCT9430 features 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 frequenc
EMI Reduction with Switching Node Ringing-free
400kHz Switching Frequency with 6% Frequency
Spread Spectrum (FSS)
Pulse Skipping Mode PSM in Light Load Condition
3.8V-36V Wide Input Voltage Range
Up to 3A Continuous Output Load Current
0.8V ±1% Feedback Reference Voltage
Fully Integrated 80mΩ R
dson
High Side MOSFET
and 42mΩ R
dson
Low Side MOSFET
1uA Shut-down Current
80ns Minimum On-time
Precision Enable Threshold for Programmable UVLO Threshold and Hysteresis
Low Drop out (LDO) Mode Operation
4ms Built-in Soft Start Time
Output Over Voltage Protection
Thermal Shutdown Protection at 160°C
Available in TSOT23-6L Package
APPLICATIONS
General Consumer
Industrial Control System
Automotive System
