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The RT9005A/B is a dual-output linear regulator for DDR-SDRAM VDDQ supply and termination voltage VTT supply.
The Regulator is capable of actively sinking or sourcing up to 2A. The output termination voltage can be tightly regulated to track 1/2 VDDQ by two external voltage divider resistors.

应用

  • Desktop PCs, Notebooks, and Workstations
  • Graphics Card Memory Termination
  • Set Top Boxes, Digital TVs, Printers
  • Embedded Systems
  • Active Termination Buses
  • DDR-I and DDR-II Memory Systems
主要规格
RT9005A RT9005B
Status Active Active
Memory Supported DDRI;DDRII DDRI;DDRII
Vin (min) (V) 1.5 1.5
Vin (max) (V) 3.6 3.6
VTT Output Tolerance (max) (+/- mV) 20 20
Isource/Isink (max) (A) 2 2
Standby Current (typ) (mA) 0.05 0.05
Current Limit (typ) (A) 2.8 2.8
Features OCP OCP
Package Type PSOP-8 PSOP-8
关键特性
  • Ideal for DDR-I and DDR-II VDDQ, VTT Applications
  • Integrated Power MOSFETs
  • Generates Termination Voltage for SSTL_2, SSTL _18, HSTL, SCSI-2 and SCSI-3 Interfaces
  • High Accuracy Output Voltage at Full-Load
  • VOUT2 Sink and Source 2A Continuous Current
  • VOUT2 Adjustment by Two External Resistors
  • Shutdown for Suspend to RAM (STR) Functionality with High-Impedance Output
  • Current Limiting Protection
  • On-Chip Thermal Protection
  • Available in SOP-8 (Exposed Pad) Packages
  • RoHS Compliant and 100% Lead (Pb)-Free
Datasheet
TitleLast UpdateDownload
DDR VDDQ and Termination Voltage Regulator2007/07/17
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