NCP51199PDR2G - 

The NCP/NCV51199 is a linear regulator designed to supply a regulated VTT termination voltage for DDR-2 and DDR-3 memory applications. The regulator is capable of actively sourcing and sinking ±2 A peak currents for DDR-2, and DDR-3 up to ±1.5 A while regulating the VTT output voltage to within ±10 mV. The output termination voltage is regulated to track VDDQ/2 by two external voltage divider resistors connected to the PVCC, GND, and VREF pins. The NCP/NCV51199 incorporates a high-speed differential amplifier to provide ultra-fast response to line and load transients. Other features include source/sink current limiting, soft-start and on-chip thermal shutdown protection.

Features:

Supports DDR-2 VTT Termination to ±2 A, DDR-3 to ±1.5 A (peak)

Stable with 10°F Ceramic Capacitance on VTT Output

Integrated Power MOSFETs

High Accuracy VTT Output at Full-Load

Fast Transient Response

Built-in Soft-Start

Shutdown for Standby or Suspend Mode

Integrated Thermal and Current-Limit Protection

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

These Devices are Pb-Free and are RoHS Compliant

Typical Applications:

SDRAM Termination Voltage for DDR-2/DDR-3

Motherboard, Notebook, and VGA Card Memory Termination

Set Top Box, Digital TV, Printers