Exar Corporation XRP2997
The 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 2A continuously. It maintains a fast line and load transient response and only requires an output capacitance of 22µF to operate. Tightly regulating its output voltage within ±20mV, the XRP2997 converts input voltages as low as 1.1V while the output voltage is adjustable through an external resistor divider or by forcing the VREF pin voltage.| Part No. | XRP2997 |
|---|---|
| Datasheet | XRP2997 Download |
| Manufacturer |  Exar Corporation |
| Description | 2A DDR I/II/III Bus Termination Regulator |
| Buy | Stock & Price |
GENERAL DESCRIPTION
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, overtemperature and under-voltage lockout protections insure safe operation under abnormal operating conditions. The XRP2997 meets JEDEC SSTL-2, SSTL-18, HSTL, SCSI-1 and SCSI-3 specifications for DDR SDRAM memories. The XRP2997 is offered in a RoHS compliant, “green”/halogen free 8-pin Exposed Pad SOIC package. Rev. 1.2.0APPLICATIONS
● DDR I/II/III Memory Termination● Active Termination Buses
● Audio-Video Equipments
● Video-Graphics Cards
FEATURES
● DDR1, DDR2 and DDR3 Support 0.75VTT Generation ±20mV Output Voltage Offset● 2 Amps Continuous Current Sourcing & Sinking 1.1V to 5.5V Wide Input Voltage Range
● Adjustable Output Voltage
● Suspend to RAM(STR), Enable & Soft Start Functions
● Stable with 22µF Ceramic Capacitor
● UVLO, Over Temperature and Over Current Protections
● Minimal External Components
● Pin/Function Compatible with SP2996B
● RoHS Compliant “Green”/Halogen Free 8-Pin SOIC Package TYPICAL APPLICATION DIAGRAM Fig.
