DESCRIPTION The SCT2322 is 2A synchronous buck converters with up to 32V wide input voltage range, which fully integrates a 130mΩ high-side MOSFET and a 70mΩ low-side MOSFET to provide high efficiency stepdown DCDC conversion. The SCT2322 adopts peak current mode control with the integrated compensation network, which makes SCT2322 easily to be used by minimizing the off-chip component count. The SCT2322 supports the Pulse Skipping Modulation (PSM). The SCT2322 is an Electromagnetic Interference (EMI) friendly buck converter with implementing optimized design for EMI reduction. The converter has proprietary designed gate driver scheme to resist switching node ringing without sacrificing MOSFET turn-on and turn-off time, which erases high frequency radiation EMI noise caused by the MOSFETs hard switching. The SCT2322 offers output over-voltage protection, cycle-by-cycle peak current limit, and thermal shutdown protection. The device is available in a low
FEATURES
Switching Node Ringing-free
500kHz Switching Frequency
Pulse Skipping Mode in Light Load Condition
3.8V-32V Wide Input Voltage Range
Up to 2A Continuous Output Load Current
0.8V ±1% Feedback Reference Voltage
Fully Integrated 130mΩ R
dson
High Side MOSFET
and 70mΩ R
dson
Low Side MOSFET
1uA Shut-down Current
80ns Minimum On-time
Precision Enable Threshold for Programmable
UVLO Threshold and Hysteresis
Low Dropout Mode Operation
4ms Built-in Soft Start Time
Output Over Voltage Protection
Thermal Shutdown Protection at 160°C
Available in TSOT23-6L Package
APPLICATIONS
White Goods, Home Appliance
Surveillance
Audio, WiFi Speaker
Printer, Charging Station
DTV, STB, Monitor/LCD Display
