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The RT9089A is a sink/source tracking termination regulator. It is specifically designed for low-cost and low-external component count systems. The RT9089A possesses a high speed operating amplifier that provides fast load transient response and only requires a minimum 10μF ceramic output capacitor. The RT9089A supports remote sensing functions and all features required to power the DDRI/DDRII/DDRIII/DDRIV/LPDDRII/LPDDRIII VTT bus termination according to the JEDEC specification.

The RT9089A is available in the thermal efficient package, WDFN-10L 2x2.

Applications

  • Notebook/Desktop/Server
  • Telecom/Datacom, GSM Base Station, LCD-TV/PDP-TV, Copier/Printer, Set-Top Box
Key Spec.
RT9089
Status Active
Memory Supported DDRI;DDRII;DDRIII;DDRIV;LPDDRII;LPDDRIIII
Vin (min) (V) 1.1
Vin (max) (V) 3.5
VTT Output Tolerance (max) (+/- mV) 25
Isource/Isink (max) (A) 2
Standby Current (typ) (mA) 0.7
Features Enable Input;OCP;Stable with Ceramic Capacitor
Package Type WDFN2x2-10
Features
  • VIN Input Voltage Range : 1.1V to 3.5V
  • VCNTL Input Voltage Range : 2.9V to 5.5V
  • Support Ceramic Capacitors
  • 10mA Source/Sink Reference Output
  • Meet DDRI, DDRII JEDEC Spec
  • Support DDRIII, DDRIV, LPDDRII and LPDDRIII Applications
  • Soft-Start Function
  • UVLO and OCP Protection
  • Thermal Shutdown
Datasheet
TitleLast UpdateDownload
DDR Termination Regulator2017/05/03
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2024] Selection Guide2024/01/18
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