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| SC2595_09 Datasheet, PDF (1/12 Pages) Semtech Corporation – Integrated Linear DDR Termination Regulator | |||
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POWER MANAGEMENT
Description
The SC2595 is an integrated linear DDR termination
device, which provides a complete solution for DDR
termination designs; while meeting the JEDEC require-
ments of SSTL-2 specifications for DDR-SDRAM termi-
nation.
The SC2595 can source and sink 1.5A current at the
output VTT while maintaining excellent load regulation.
VTT is designed to track the VREF voltage with a tight
tolerance over the entire current range while preventing
shoot through on the output stage.
A VSENSE pin is incorporated to provide excellent load
regulation, along with a buffered reference voltage.
SC2595
Integrated Linear DDR
Termination Regulator
Features
 Regulates while sourcing or sinking 1.5A
 AV range is from 2.5V to 5V
Â
CC
Reference output
 Minimum number of external components
 Accurate internal voltage divider
 SOIC8-EDP package.Pb-free,Halogen free, and RoHS/
WEEE compliant
Applications
 DDR memory termination
 High speed data line termination
 PC motherboards
 Graphics boards
 Disk drives
 CD-ROM drives
The SC2595 incorporates a disable function built into
the AVCC pin to tri-state the output during Suspend To
Ram (STR) states.
(Multiple patents pending.)
Typical Application Circuit
VDD
SC2595
1 NC
VTT 8
VTT
2 GND
PVCC 7
3
6
VSENSE AVCC
VREF
4 VREF
VDDQ 5
September 24, 2009
1
www.semtech.com
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