PM6641

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Monolithic VR for Chipset and DDR2/3 Supply for Ultra-Mobile PC (UMPC) Applications

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Product overview

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.

It integrates three independent, adjustable, constant frequency buck converters, a ±2 Apk low drop-out (LDO) linear regulator and a ±15 mA low noise buffered reference.

Each regulator provides basic UV and OV protections, programmable soft-start and current limit and active soft-end.

Pulse-skipping technique is performed to increase efficiency at very light load.

  • All features

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

EDA Symbols, Footprints and 3D Models

STMicroelectronics - PM6641

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
PM6641TR
Active
VFQFPN 48 7x7x1.0 mm Industrial Ecopack2

PM6641TR

Package:

VFQFPN 48 7x7x1.0 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 48 7x7x1.0 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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PM6641TR Available at distributors

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Active
EAR99 NEC Tape and Reel VFQFPN 48 7x7x1.0 mm - - PHILIPPINES

PM6641TR Active

Package:
VFQFPN 48 7x7x1.0 mm
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

PM6641TR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

PHILIPPINES

Distributor Name

Distributor reported inventory date:

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors