SC111
DESCRIPTION
The SC1110 is a low-cost, full featured, synchronous voltage-mode controller designed to generate termination voltage in double data rate (DDR) memory systems and other applications where wide data bus need to be actively terminated. Synchronous control of the MOSFET half bridge allows power flowing bidirectionally. The termination voltage can be tightly regulated to track the chipset voltage, i.e. to be exactly 50% of that at all times. The SC1110 is ideal for low cost implementation of termination voltage supplies. SC1110 features include temperature pensated voltage reference, triangle wave oscillator and current sense parator circuitry, and allows the use of inexpensive N-channel power switches. The SC1110 operates at a fixed 250k Hz, providing an optimum promise between efficiency, transient performance, external ponent size, and cost.
FEATURES
- = Generates termination voltages for active termina- = 1% set point accuracy
- = For ±7A output current, transient regulation...
