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RT9238 - VRM8.5 PWM and Triple Linear Power System Controller

Description

The RT9238 is a 4-in-one power controller optimized for high-performance microprocessor and computer applications.

The IC integrates a PWM controller, triple linear controller as well as monitoring and protection functions into a 28-pin SOP package.

Features

  • an Intel VRM8.5 compatible, TTL 5-bit programmable DAC that adjusts the core voltage from 1.090V to 1.865V in 25mV steps. The 5bit DAC has a typical ±1% tolerance. The linear regulators provide fixed output voltages of 1.2V (VOUT2), 1.5V (VOUT3) and 1.8V (VOUT4) or useradjustable.

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Datasheet preview – RT9238

Datasheet Details

Part number RT9238
Manufacturer Richtek
File Size 429.72 KB
Description VRM8.5 PWM and Triple Linear Power System Controller
Datasheet download datasheet RT9238 Datasheet
Additional preview pages of the RT9238 datasheet.

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Full PDF Text Transcription

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Preliminary RT9238 VRM8.5 PWM and Triple Linear Power System Controller General Description The RT9238 is a 4-in-one power controller optimized for high-performance microprocessor and computer applications. The IC integrates a PWM controller, triple linear controller as well as monitoring and protection functions into a 28-pin SOP package. The PWM controller regulates the microprocessor core voltage with a synchronous buck converter. The first linear controller supplies the computer system’s AGTL+ 1.2V bus power. The second linear controller provides power for the 1.5V AGP bus and the 3rd linear controller provides 1.8V power for the chipset core voltage and/or cache memory circuits. The RT9238 features an Intel VRM8.
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