XRP2997 Regulator

By MaxLinear 191

XRP2997 Regulator

MaxLinear's XRP2997 is a Double Data Rate (DDR) termination voltage regulator supporting all power requirements of DDR I, II, and III memories and is capable of sinking or sourcing 2 A continuously.

Tightly regulating its output voltage to within ±20 mV, the XRP2997 converts input voltages as low as 1.1 V while the output voltage is adjustable through an external resistor divider or by forcing the VREF pin voltage. It maintains a fast line and load transient response and only requires an output capacitance of 22 µF to operate. An enable function via an external MOSFET and a soft start feature allow for a controlled implementation of power-up sequencing.

Built-in source / sink overcurrent, over-temperature and under-voltage lockout protections ensure safe operation under abnormal operating conditions.

  • DDR1, DDR2, and DDR3 support
    • ±20 mV output voltage offset
    • 0.75 VTT generation
  • 2 A continuous current sourcing and sinking
    • 1.1 V to 5.5 V wide input voltage range
  • Adjustable output voltage
  • Suspend to RAM(STR), enable and soft start functions
  • Stable with 22 µF ceramic capacitor
  • UVLO, over temperature and over current protections
  • Minimal external components
  • Pin / Function compatible with SP2996B
  • Halogen-free, 8-pin SOIC package
  • DDR I / II / III memory termination
  • Active termination buses
  • Audio-video equipment
  • Video-graphics cards

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