NCP51145: 1.8A Source / Sink VTT DDR Termination Regulator

Description: The NCP51145 is a linear regulator designed to sup...
  • The NCP51145 is a linear regulator designed to supply a regulated VTT termination voltage for DDR−II, DDR−III, LPDDR−III and DDR−IV memory applications. The regulator is capable of actively sourcing and sinking ±1.8 A peak currents while regulating an output voltage to within ±20 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 NCP51145 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
  • For DDR VTT Applications, Source/Sink Currents
  • Supports DDR−II to ±1.8 A, DDR−III to ±1.5 A
  • Supports LPDDR−III and DDR−IV to ±1.2 A
  • Stable Using Ceramic−Only (Very Low ESR) Capacitors
  • 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
  • Applications
  • DDR−II / DR−III / DDR−IV SDRAM Termination Voltage
  • Low Power DDR−3LP
  • End Products
  • Motherboard, Notebook, and VGA Card Memory Termination
  • Set Top Box, Digital TV, Printers
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
    NCP51145MNTAG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 1.8A Source / Sink VTT DDR Termination Regulator
  • Package Type: DFN-8
  • Package Case Outline: 506AA
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Chip1Stop:>1K
  • Mouser:>1K
  • ON Semiconductor:48,000
  • NCP51145PDR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: 1.8A Source / Sink VTT DDR Termination Regulator
  • Package Type: SOIC-8 NB EP
  • Package Case Outline: 751BU
  • MSL: 2
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Mouser:<1K
  • ON Semiconductor:20,000
  • Specifications
  • DDR Memory Type: DDR3  DDR  DDR2  DDR4  DDR3L 
  • IOUT VTT Max (A): 1.8 
  • IQ Typ (µA): 1000 
  • VCC Bias Min (V): 4.75 
  • VCC Bias Max (V): 5.25 
  • Remote Sense: No 
  • Power Good: No 
  • Package Type: DFN-8  SOIC-8 NB EP 
  • ON Semiconductor Full Web Site