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RT9040 - DDR Termination Regulator

General Description

The RT9040 is a sink/source tracking termination regulator.

It is specifically designed for low-cost and low-external component count systems.

Key Features

  • required to power the DDRI / DDRII / DDRIII and Low Power DDRIII VTT bus termination according to the JEDEC specification. In addition, the RT9040 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.

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Datasheet Details

Part number RT9040
Manufacturer Richtek
File Size 145.48 KB
Description DDR Termination Regulator
Datasheet download datasheet RT9040 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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® RT9040 DDR Termination Regulator General Description The RT9040 is a sink/source tracking termination regulator. It is specifically designed for low-cost and low-external component count systems. The RT9040 possesses a high speed operating amplifier that provides fast load transient response and only requires a minimum 20μF of ceramic output capacitance. The RT9040 supports remote sensing functions and all features required to power the DDRI / DDRII / DDRIII and Low Power DDRIII VTT bus termination according to the JEDEC specification. In addition, the RT9040 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 .