Description

The SC1104A/B is a versatile voltage-mode PWM controller designed for use in single ended DC/DC power supply applications. A simple, fixed frequency high efficiency buck regulator can be implemented using the SC1104A/B with a minimum of external components. Internal level shift and drive circuitry eliminates the need for an expensive P-channel, high-side switch. The small device footprint allows for compact circuit design.

Features

◆ +5V or +12V operation

◆ High efficiency (>90)

◆ 1 Reference voltage accuracy

◆ Hiccup mode over current protection

◆ Robust output drive

◆ RDS(ON) Current sensing

◆ Industrial temperature range

◆ SO-8 package

Applications

◆ Termination supplies

◆ Low cost microprocessor supplies

◆ Peripheral card supplies

◆ Industrial power supplies

◆ High density DC/DC conversion