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Product Folder Links: SCT2330C
芯 洲 科 技
Silicon Content Technology
3.8V-28V Vin, 3A Synchronous Step-down DCDC Converter with EMI Reduction
FEATURES
EMI Reduction with Switching Node Ringing-free
400kHz Switching Frequency
Pulse Skipping Mode PSM with 25uA Quiescent
Current in Light Load Condition
3.8V-28V 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
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
DESCRIPTION
The SCT2330C is 3A synchronous buck converters
with up to 28V wide input voltage range, which fully
integrates an 80mΩ high-side MOSFET and a 42mΩ
low-side MOSFET to provide high efficiency step-down
DC-DC conversion. The SCT2330C adopts peak
current mode control with the integrated compensation
network, which makes SCT2330C easily to be used by
minimizing the off-chip component count. The
SCT2330C supports the Pulse Skipping Modulation
(PSM) with typical 25uA Ultra-Low Quiescent.
The SCT2330C 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 further erases high
frequency radiation EMI noise caused by the MOSFETs
hard switching.
The SCT2330C 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.
FB
EN
VIN GND
SW
BST
OFF
ON
C3
L1
VIN
VOUT
C1
C2
R1
R2
3.8V-28V, synchronous Buck Converter
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0.001 0.01 0.1 1
Efficiency(%)
Output Current (A)
12VIN 3.3VOUT 400K
24VIN 3.3VOUT 400K
12VIN 5VOUT 400K
24VIN 5VOUT 400K