SCT2632ASTER

The SCT2632A is 3.5A buck converter with wide input voltage, ranging from 4.5V to 60V, which integrates an 80mΩ high-side MOSFET. The SCT2632A, adopting the peak current mode control, supports the Pulse Skipping Modulation (PSM) which assists the converter on achieving high efficiency at light load or standby condition. The SCT2632A features programmable switching frequency from 100kHz to 1.2MHz with an external resistor, which provides the flexibility to optimize either efficiency or external component size. The converter supports external clock synchronization with a frequency band from 100kHz to 1.2MHz. The SCT2632A allows power conversion from high input voltage to low output voltage with a minimum 130ns ontime of high-side MOSFET. The device offers adjustable soft start to prevent inrush current during the startup of output voltage ramping. The SCT2632A features internal loop compensation to simplify the loop compensation design. The SCT2632A provides cycle-by-cycle current limit, thermal shutdown protection, output over-voltage protection and input voltage under-voltage protection. The device is available in an 8-pin ESOP-8 package.

Applications

• 12-V, 24-V, 48-V Industry and Telecom Power System
• Industrial Automation and Motor Control
• Vehicle Accessories

Key features

• Wide Input Range: 4.5V - 60V
• Up to 3.5A Continuous Output Current
• 0.8V ±1% Feedback Reference Voltage
• Integrated 80mΩ High-Side MOSFET
• Low Quiescent Current: 100μA
• Pulse Skipping Mode (PSM) in light load
• 130ns Minimum On-time
• Programmable Soft-start Time
• Adjustable Frequency 100KHz to 1.2MHz
• External Clock Synchronization
• Precision Enable Threshold for Programmable Input Voltage Under-Voltage Lock Out Protection (UVLO) Threshold and Hysteresis
• Low Dropout Mode Operation
• Derivable Inverting Voltage Regulator
• Over-voltage and Over-Temperature Protection
• Available in an ESOP-8 Package