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SCT9430 3.8V-36V Vin, 3A Synchronous Step-down DCDC Converter

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