Low Voltage Integrated DDR
Termination Regulator
POWER MANAGEMENT
Description
The SC2596 is an integrated linear DDR termination
device, which provides a complete solution for DDR
termination regulator designs; while meeting the JEDEC
requirements of SSTL-2 and SSTL-18 specifications for
DDR-SDRAM termination.
The SC2596 regulates up to +/- 2.5A for DDR-I and +/-
1.5A for DDR-II application requirements.
V
TT
is regulated to track the V
REF
voltage over the entire
current range with shoot through protection.
A V
SENSE
pin is incorporated to provide excellent load
regulation, along with a buffered reference voltage for
internal use.
The SC2596 also features a disable function which is to
tri-state the output during Suspend To Ram (STR) states
by pulling the EN pin low.
SC2596
Features
Sourcing or sinking 2.5A for DDR-I
Sourcing or sinking 1.5A for DDR-II
AV
CC
undervoltage lockout
Reference output
Minimum number of external components
Accurate internal voltage divider
Disable function, puts device into sleep mode
Thermal shutdown
Over current protection
Available in SOIC8-EDP package
Pb-free, Halogen free, and RoHS/WEEE compliant
Applications
DDR-I and DDR-II memory termination
SSTL-2 and SSTL-3 termination
HSTL termination
PC motherboards
Graphics boards
Disk drives
CD-ROM drives
Typical Application Circuit
AVCC
EN
VDDQ
SC2596
EN
VDDQ
PVCC
AVCC
VTT
VTT
VSENSE
VREF
VREF
GND
0
Septenber 24, 2009
1
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SEMTECH [ SEMTECH CORPORATION ]
