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RT9641B - Triple Linear Regulator Controller Support ACPI Control Interface

This page provides the datasheet information for the RT9641B, a member of the RT9641A Triple Linear Regulator Controller Support ACPI Control Interface family.

Description

The RT9641A/B, paired with either the RT9230 or RT9231 simplifies the implementation of ACPIcompliant designs in microprocessor and computer applications.

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Datasheet Details

Part number RT9641B
Manufacturer Richtek
File Size 224.90 KB
Description Triple Linear Regulator Controller Support ACPI Control Interface
Datasheet download datasheet RT9641B Datasheet
Additional preview pages of the RT9641B datasheet.

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Full PDF Text Transcription

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RT9641A/B Triple Linear Regulator Controller Support ACPI Control Interface General Description The RT9641A/B, paired with either the RT9230 or RT9231 simplifies the implementation of ACPIcompliant designs in microprocessor and computer applications. The IC integrates two linear controllers and a low-current pass transistor, as well as the monitoring and control functions into a 16-pin SOIC package. One linear controller generates the 3.3VDUAL voltage plane from an ATX power supply's 5VSB output during sleep states (S3,S4/S5), powering the PCI slots through an external pass transistor, as instructed by the status of the 3.3VDUAL enable pin. An additional pass transistor is used to switch in the ATX 3.3V output for PCI operation during S0 and S1 (active) operating states.
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