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PM6641 - Monolithic VR for chipset and DDR2/3 supply

Datasheet Summary

Description

The PM6641 is a monolithic voltage regulator module specifically designed to supply DDR2/3 memory and chipset in ultra-mobile PC and real estate constrained portable systems.

Features

  • 0.8 V ±1 % internal voltage reference V to 5.5 V input voltage range Fast response, constant frequency, current mode control Three independent, adjustable, out-of-phase SMPS for DDR2/3 (VDDQ) and chipset supply Low noise DDR2/3 reference (VTTREF) ±2 Apk LDO for DDR2/3 termination (VTT) with foldback S0-S5 states compliant DDR2/3 section Active soft-end for all outputs Selectable tracking discharge for VDDQ Separate power-good signals Pulse skipping at light load Programmable current limit.

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Datasheet preview – PM6641

Datasheet Details

Part number PM6641
Manufacturer STMicroelectronics
File Size 2.28 MB
Description Monolithic VR for chipset and DDR2/3 supply
Datasheet download datasheet PM6641 Datasheet
Additional preview pages of the PM6641 datasheet.

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Full PDF Text Transcription

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PM6641 Monolithic VR for chipset and DDR2/3 supply for ultra-mobile PC (UMPC) applications Features ■ 0.8 V ±1 % internal voltage reference V to 5.5 V input voltage range Fast response, constant frequency, current mode control Three independent, adjustable, out-of-phase SMPS for DDR2/3 (VDDQ) and chipset supply Low noise DDR2/3 reference (VTTREF) ±2 Apk LDO for DDR2/3 termination (VTT) with foldback S0-S5 states compliant DDR2/3 section Active soft-end for all outputs Selectable tracking discharge for VDDQ Separate power-good signals Pulse skipping at light load Programmable current limit and soft-start for all outputs Latched OVP, UVP protection Thermal protection VFQFPN-48 7x7 www.DataSheet4U.com ■ 2.
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