NCV51199

NCP51199, NCV51199 DDR 2-Amp Source / Sink VTT Termination Regulator 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 mF 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 http://onsemi.com MARKING DIAGRAM 8 8 1 SOIC8−NB EP PD SUFF...