General Description

The RT9005A/B is a dual-output linear regulator for DDRSDRAM 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.

Features

• 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

Applications

• 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