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The RT9088B is a sink/source tracking termination regulator. It is specifically designed for low-cost and low-external component count systems. The RT9088B possesses a high speed operating amplifier that provides fast load transient response and only requires a minimum 30μF ceramic output capacitor. The RT9088B supports remote sensing functions and all features required to power the DDRIII and Low Power DDRIII / DDRIV VTT bus termination according to the JEDEC specification. In addition, the RT9088B provides an open-drain PGOOD signal to monitor the output regulation and an EN signal that can be used to discharge VTT during S3 (suspend to RAM) for DDR applications.

The RT9088B 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.
RT9088B
Status Active
Memory Supported DDRII;DDRIII;DDRIV
Vin (min) (V) 1.1
Vin (max) (V) 3.5
VTT Output Tolerance (max) (+/- mV) 25
Isource/Isink (max) (A) 3
Standby Current (typ) (mA) 0.7
Current Limit (typ) (A) 4.5
Features Enable Input;OCP;Power Good;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
  • Power Good Indicator
  • 10mA Source/Sink Reference Output
  • Meet DDRI, DDRII JEDEC Spec
  • Support DDRIII, Low Power DDRIII/DDRIV VTT Applications
  • Soft-Start Function
  • UVLO and OCP Protection
  • Thermal Shutdown
Datasheet
TitleLast UpdateDownload
DDR Termination Regulator2019/11/07
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2024] Selection Guide2024/01/18
Please confirm with our distributor or sales representative for actual stock status.
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