• Wide Input Range: 4.2V-17V 
• Up to 3A Continuous Output Current
• Wide Output Voltage Range:0.8V-7V
• Integrated 70mΩ High-Side 42mΩ Low-Side Power MOSFETs
• Pulse Frequency Mode PFM at Light load
• 275uA Quiescent Current
• Cycle-by-Cycle Current Limiting
• Internal 2ms Soft-Start Limits the Inrush Current
• Fixed Switching Frequency 750KHz
• Input Under-Voltage Lockout 
• Over Temperature Protection 
• Available in SOT563-6L, SOT23-6L Package

The SCT2231 is a fully integrated high efficiency synonous step-down DCDC converter capable of delivering 3A current. The devices operate over a wide input voltage range from 4.2V to 17V fully integrate high-side power MOSFETs synonous MOSFETs with very low Rdson to minimize the conduction loss.With 750 kHz switching frequency, low output voltage ripple, small external inductor capacitor size are achieved. SCT2231 adopts adaptive constant ON time control architecture to achieve fast load transient responses for step-down applications. The SCT2231 operates in power saving mode, which maintains high efficiency during light load operation. It includes full protection features, such as over current protection, output under-voltage protection, input under-voltage lockout, thermal shutdown.The SCT2231 requires a minimal number of external components is available in a space-saving SOT563 TSOT23-6 package.

Application:

• Flat Panel Digital TV Monitors
• Surveillance
• Set Top Boxes
• Networking Systems
• Consumer Electronics
• General Purpose

Parameter list

Technical information