SGM61232XPS8G/TR

SGM61232XPS8G/TR is a current mode controlled nonsynchronous buck DC/DC converter with 4V to 28V input range, 3A rated output current. A low RDSON N-MOSFET is integrated as high-side switch. Pulse-skip mode feature is activated automatically for power-save mode at light loads to improve efficiency. The internal current mode controller with slope compensation allows ceramic capacitors at the output and simplifies compensation network design. The UVLO level can be adjusted by an external resistor divider. Protection against over-voltage transient is provided to limit the startup or other transient overshoots. Secure operation in overload conditions is ensured by cycle-by-cycle current limit, frequency fold-back and thermal shutdown protection. Application includes industrial power supplies, distributed power systems, CPE equipment, set-top boxes, LCD displays, battery chargers.

• Operating input voltage range from 4V to 28V (TJ = +25°C)
• Voltage reference is 0.800V typ (TJ = +25°C)
• 0.8V to 25V adjustable output voltage range
• Integrated 77mohm high-side MOSFET supports up to 3A continuous output current
• Switching frequency is 540KHz typ (VIN = 12V, TJ = +25°C)
• Shutdown supply current is 1.2μA typ (EN = 0V, VIN = 12V, TJ = +25°C)
• High light load efficiency, adjustable soft-start to limit inrush current
• Programmable UVLO threshold, over-voltage transient protection
• Cycle-by-cycle current limit, frequency fold-back, thermal shutdown protection
• SOIC-8 package, operating temperature range from -40°C to +125°C