NCP51198PDR2G - 

The NCP/NCV51198 is a simple, cost-effective, high-speed linear regulator designed to generate the VTT termination voltage rail for DDR-I, DDR-II and DDR-III memory. The regulator is capable of actively sourcing or sinking up to ±1.5 A for DDR-I, or up to ±0.5 A for DDR-II /-III while regulating the output voltage to within ±30 mV. The output termination voltage is tightly regulated to track VTT = (VDDQ / 2) over the entire current range. The NCP/NCV51198 incorporates a high-speed differential amplifier to provide ultra-fast response to line and load transients. Other features include extremely low initial offset voltage, excellent
load regulation, source/sink soft-start and on-chip thermal shut-down protection. The NCP/NCV51198 features the power-saving Suspend To Ram (STR) function which will tri-state the regulator output and lower the quiescent current drawn when the /SS pin is pulled low. The NCP/NCV51198 is available in a SOIC-8 Exposed Pad package.

Features:

Generate DDR Memory Termination Voltage (VTT)

For DDR-I, DDR-II, DDR-III Source/Sink Currents

Supports DDR-I to ±1.5 A, DDR-II to ±0.5 A (peak)

Integrated Power MOSFETs with Thermal Protection

Stable with 10 F Ceramic VTT Capacitor

High Accuracy Output Voltage at Full-Load

Minimal External Component Count

Shutdown for Standby or Suspend to RAM (STR) mode

Built-in Soft Start

NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable

These are Pb-Free Devices

Applications:

Desktop PCs, Notebooks, and Workstations

Graphics Card DDR Memory Termination

Set Top Boxes, Digital TVs, Printers

Embedded Systems

Active Bus Termination