SP2996B

Features:

  Capable of sourcing and sinking 2A Continuous current
  Supports both DDR1 (1.25VTT) and DDR2 (0.9VTT) requirements
  Low Output Voltage Offset,  ⁺20mV
  Thermal and Current Limit Protection
  Integrated Power MOSFETs
  Generates Termination for SSTL-2
  High Accuracy Output at Full Load
  Adjustable VOUT  by External Resistors
  Minimal External Components
  Available in  8 pin NSOIC package

Application

  DDR Memory Termination
  Active Bus Termination
  Supply Splitter


Pinout




Specifications

Supply  Voltage .................................................. -0.4V to 7V
Operating Temperature Range...................-40°C to +85°C
Junction Temperature ............. ..................................125°C
Storage Temperature Range....................-65°C to +150°C


Description

The SP2996B voltage regulator is designed to convert voltage supplies ranging from 1.6V to 6V into a desired output voltage which is adjusted by an external resistor divider. The regulator is capable of sourcing or sinking up to 2A of Continuous current while regulating an output voltage to within 20mV. The SP2996B provides an excellent voltage source for active termination schemes of high speed transmission lines such as those seen in high speed memory buses and distributed backplane designs when used in conjunction with series termination resistors. The voltage output of the regulator can be used as a termination voltage for DDR SDRAM, and it meets the JEDEC SSTL-2 and SSTL-3 specifications . Current limits in both sourcing and sinking mode, plus on-chip thermal shutdown make the circuit SP2996B tolerant of output fault conditions.