Product Description

The CM3196 is a sinking and sourcing regulator specifically designed for DDR-I, -II VTT bus termination. The output voltage accurately tracks VDDQ/2. For DDR-I it can source and sink current up to 2A with a load regulation of 0.5. This current adequately serves both single and dual channel DDR-I memory systems. For power conscious notebook applications, the CM3196 also operates from a VDDQ of 1.5V or 1.8V with less current drive. For DDR-II applications, the CM3196 provides up to 0.6A at 0.9V to drive the memory controller VTT

Features

• Ideal for DDR-I, -II VTT applications

• Sinks and sources 2A for DDR-I, 0.6A for DDR-II

• Shutdown input to support ACPI states

• Operates down to 1.5V input voltage

• Integrated power MOSFETs

• Overcurrent protection

• Over temperature protection

• Excellent accuracy

VTT = VREF ± 30mV

VTT = VDDQ/2 ± 2

• 8-pin SOIC or PSOP package

• Lead-free versions available

Applications

• DDR-I, -II memory termination

• Active termination buses

• Graphics card memory termination