SC2596_09 Datasheet, PDF (1/14 Pages) Semtech Corporation – 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.
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SC2596
Low Voltage Integrated DDR
Termination Regulator
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
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.
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
VTT
VDDQ VSENSE
PVCC
VREF
VREF
VTT
Septenber 24, 2009
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