NCP5208

NCP5208 DDR−I/II Termination Regulator The NCP5208 is a linear regulator specifically designed for the active termination of DDR−I/II SDRAM. The device can be operated from a single supply voltage as low as 1.7 V. For DDR−I applications, the device is capable of sourcing and sinking current up to 1.5 A with the output voltage regulated to within "3% or better. A separate voltage feedback pin ensures superior load regulation against load and line changes. Protective features include soft−start, source/sink current limits and thermal shutdown. Open−drain VTT OK output (POK) is added for system monitoring. The shutdown pin can tri−state the regulator output for Suspend To RAM (STR) state. This device is available in a SOIC−8 package. Features http://onsemi.com 1 SOIC−8 D SUFFIX CASE 751 MARKING DIAGRAM 8 N5208 ALYW G 1 Supports Both DDR−I and DDR−II SDRAM Requirements Single Supply Voltage Operation as Low as 1.7 V Integrated Power MOSFETs Few External Components Needed Source and Sink Current Up to 1.5 A Load Regulation Within "3% Both Source and Sink Current Limits www.DataSheet4U.com Open−Drain VTT OK (POK) Pin Shutdown Pin Thermal Shutdown Housed in SOIC−8 Package Pb−Free Package is Available A L Y W G = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package PIN CONNECTIONS Typical Applications DDR Termination Voltage Active Bus Termination (SSTL−2, SSTL−3) POK 1 GND 2 VFB 3 SD 4 (Top View) 8 7 6 5 VTT PVIN AVIN VDDQ VDD...