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NCP51145 - ON Semiconductor

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NCP51145 Termination Regulator

Pin No. SO8−EP Pin No. DFN8 Pin Name 1 1 PVCC 2 4 GND 3 5 VREF 4 2 VTT 5, 7, 8 6 3, 7 8 NC VCC − 6 VTTS EP EP EPAD Description Input voltage which supplies current to the output pin. CIN ^ ½ S COUT Common Ground Buffered reference voltage input equal to ½ of VDDQ and active low shutdown pin. An external resistor divider dividing down the PVCC volt.

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
• VTT Remote Sense Available in the DFN8 2x2mm Package
• These Devices are Pb−Free and are RoHS Complian.

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