DESCRIPTION

The SC1103 is a versatile, low-cost, voltagemode PWM controller designed for use in single ended DC/DC power supply applications. A simple, fixed-voltage buck regulator can be implemented using the SC1103 with a minimum of external components. Internal level shift and drive circuitry eliminates the need for an expensive pchannel, high-side switch. The small device footprint allows for compact circuit design.

FEATURES

• Low cost / small size

• Switch mode efficiency (90)

• 1 reference voltage accuracy

• Over current protection

• 500mA output drive

• 5V to 12V Input power source

APPLICATIONS

• Pentium® P55 Core Supply

• Low Cost Microprocessor Supplies

• Peripheral Card Supplies

• Industrial Power Supplies

• High Density DC/DC Conversion