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What is LP2995?

This electronic component, produced by the manufacturer "National Semiconductor", performs the same function as "DDR Termination Regulator".


LP2995 Datasheet PDF - National Semiconductor

Part Number LP2995
Description DDR Termination Regulator
Manufacturers National Semiconductor 
Logo National Semiconductor Logo 


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July 2003
LP2995
DDR Termination Regulator
General Description
The LP2995 linear regulator is designed to meet the JEDEC
SSTL-2 and SSTL-3 specifications for termination of DDR-
SDRAM. The device contains a high-speed operational am-
plifier to provide excellent response to load transients. The
output stage prevents shoot through while delivering 1.5A
continuous current and transient peaks up to 3A in the
application as required for DDR-SDRAM termination. The
LP2995 also incorporates a VSENSE pin to provide superior
load regulation and a VREF output as a reference for the
chipset and DDR DIMMS.
Patents Pending
Features
n Low output voltage offset
n Works with +5v, +3.3v and 2.5v rails
n Source and sink current
n Low external component count
n No external resistors required
n Linear topology
n Available in SO-8, PSOP-8 or LLP-16 packages
n Low cost and easy to use
Applications
n DDR Termination Voltage
n SSTL-2
n SSTL-3
Typical Application Circuit
20039302
© 2003 National Semiconductor Corporation DS200393
www.national.com

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LP2995 equivalent
Typical Performance Characteristics (Continued)
VTT vs IOUT
Maximum Output Current (Sourcing) vs VIN
(VDDQ = 2.5)
20039315
Maximum Output Current (Sinking) vs VIN
(VDDQ = 2.5)
20039316
20039317
5 www.national.com


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Part Details

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LP2995 datasheet


1. Termination Regulator ( PDF )

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