17V Vin, 3A Synchronous Step-down DCDC Converter
Silicon Content Technology's SCT2230C is a fully integrated high efficiency Synchronous Step-down DCDC Converter capable of delivering a 3A current. The devices operate over a wide input voltage range from 4.2V to 17V and fully integrate high-side power MOSFETs and synchronous MOSFETs with very low Rdson to minimize the conduction loss.
With 750 kHz switching frequency, low output voltage ripple, small external inductor, and capacitor size are achieved. SCT2230C adopts adaptive constant on-time control architecture to achieve fast load transient responses for step-down applications.
The SCT2230C operates in power saving mode, which maintains high efficiency during a light load operation. It includes full protection features, such as over current protection, output under-voltage protection, input under-voltage lockout, and thermal shutdown.
The SCT2230C requires a minimal number of external components and is available in a space-saving TSOT23-6 package.
Fig.1 TYPICAL APPLICATION
FEATURES
●Wide Input Voltage:4.2-17V
●3A Continuous Output Current with Integrated 90mQ/54mQFETs
●Wide Output Voltage Range:0.8V-7V
●Quiescent Current 135uA
●Cycle-by-Cycle Current Limiting
●Internal 2.5ms Soft-Start Limits the inrush current
●Fixed 750kHz Switching Frequency
●Input Under-Voltage Lockout
●Power save mode at light load
●Over-Temperature Protection
●Available in a TSOT23-6 Package
Electrical parameters
Table.1
APPLICATIONS
●Flat Panel Digital TV and Monitors
●Surveillance
●Set-Top Boxes
●Networking Systems
●Consumer Electronics
●General Purpose
Ordering Information
Table.2
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