XRP2997 2A DDR I/II/III Bus Termination Regulator

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. 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. It maintains a fast line and load transient response and only requires an output capacitance of 22µF 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 insure safe operation under abnormal operating conditions.

技术特性

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 Exar SP2996B
RoHS Compliant "Green"/Halogen Free 8-Pin SOIC (EP) Package

订购信息 Ordering Information

器件型号	封装编码	有害物质限制	最低温度	最高温度	状态	立刻购买	申请样片
XRP2997IDBTR-F	SOIC8		-40	85	Active

技术指标

输出电流(mA)	2000
最低输入电压(V)	1.1
最高输入电压(V)	5.5
静态电流(µA)	2
精确性	1%
漏失电压	20
输出电压1.2V	False
输出电压可调	Yes

应用领域 APPLICATION

DDR I/II/III Memory Termination
Active Termination Buses
Audio-Video Equipments
Video-Graphics Cards

功能框图 Functional Block Diagram

应用技术支持与电子电路设计开发资源下载	版本信息	大小
XRP2997 数据资料DataSheet下载:pdf	Rev.V2	2 页