Advanced DDR Memory Termination Power with External Reference Voltage In

The NE57810TK is designed to provide power for termination of a Double Data Rate (DDR) SDRAM memory bus. It significantly reduces parts count, board space, and overall system cost compared to previous solutions.

The NE57810TK DDR termination regulator maintains an output voltage (DDR reference bus voltage) that is half the RAM supply voltage. It is capable of providing up to ± 3.5 A for sustained periods. Overcurrent limiting protects the NE57810TK from inrush currents at start-up. Overtemperature shutdown protects the device in extreme temperature situations.

The package is thermally robust for flexibility of thermal design. The NE57810TK is a linear regulator so no external inductors or switching FETs are necessary. Fast response to load changes reduces the need for output capacitors.