NCP51199: 2 Amps DDR Termination Regulator

The NCP51199 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 +-2A peak currents for DDR-2 and DDR-3 up to +-1.5A while regulating the VTT output voltage to within +-10mV.The output termination voltage is regulated to track VDDQ2 by two external voltage divider resistors connected to the PVCC,GND,and VREF pins.

Features
  • Supports DDR2 VTT Termination to 2 A, DDR3 to 1.5 A (peak
  • Supports DDR VTT Voltages as low as 600 mV at 1.2 A (peak)
  • Integrated Power MOSFETs
  • Stable with 10uF Ceramic Capacitance on VTT Output
  • High Accuracy VTT Output at FullLoad
  • Fast Transient Response
  • Builtin SoftStart
  • Shutdown for Standby or Suspend Mode
  • Integrated Thermal and CurrentLimit Protection
Applications
  • SDRAM Termination Voltage for DDR2 / DDR3
  • Motherboard, Notebook, and VGA Card Memory Termination
  • Set Top Box, Digital TV, Printers
Simulation Models (1)
Document TitleDocument ID/SizeRevisionRevision Date
AEI's VLR Gain ModelNCP51199 (812kB)0Dec, 2015
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SOIC8 NB EP751BU (37.6kB)E
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
DDR 2 Amp Source / Sink VTT Termination RegulatorNCP51199/D (74kB)2
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NCP51199PDR2GActivePb-free Halide freeSOIC-8 NB EP751BU3Tape and Reel2500$0.2267
NCV51199PDR2GActiveAEC Qualified PPAP Capable Pb-free Halide freeSOIC-8 NB EP751BU2Tape and Reel2500$0.213
Specifications
ProductIOUT VTT Max (A)IQ Typ (µA)VCC Bias Min (V)VCC Bias Max (V)Remote SensePower Good
NCP51199PDR2G28004.755.25NoNo
NCV51199PDR2G28004.755.25NoNo
DDR 2 Amp Source / Sink VTT Termination Regulator (74kB) NCP51199
AEI's VLR Gain Model NCP51199
SOIC8 NB EP NCP51199