LP2997 datasheet(1/12 Pages) NSC

tên linh kiện	LP2997

Giải thích chi tiết về linh kiện	DDR-II Termination Regulator

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nhà sản xuất	NSC [National Semiconductor (TI)]

Trang chủ	http://www.national.com

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LP2997

DDR-II Termination Regulator

General Description

The LP2997 linear regulator is designed to meet the JEDEC

SSTL-18 specifications for termination of DDR-II memory.

The device contains a high-speed operational amplifier to

provide excellent response to load transients. The output

stage prevents shoot through while delivering 500mA con-

tinuous current and transient peaks up to 900mA in the

application as required for DDR-II SDRAM termination. The

LP2997 also incorporates a V

SENSE pin to provide superior

load regulation and a V

REF output as a reference for the

chipset and DIMMs.

An additional feature found on the LP2997 is an active low

shutdown (SD) pin that provides Suspend To RAM (STR)

functionality. When SD is pulled low the V

TT output will

tri-state providing a high impedance output, but, V

REF will

remain active. A power savings advantage can be obtained

in this mode through lower quiescent current.

Features

n

Source and sink current

n

Low output voltage offset

n

No external resistors required

n

Linear topology

n

Suspend to Ram (STR) functionality

n

Low external component count

n

Thermal Shutdown

n

Available in SO-8, PSOP-8 packages

Applications

n

DDR-II Termination Voltage

n

SSTL-18 Termination

Typical Application Circuit

20109418

June 2004

DS201094

www.national.com

Số phần tương tự - LP2997

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Texas Instruments	LP2997	1Mb / 21P	DDR-II Termination Regulator
	LP2997	1Mb / 28P	LP2997 DDR-II Termination Regulator REVISED APRIL 2013
	LP2997M	1Mb / 21P	DDR-II Termination Regulator
	LP2997M/NOPB	1Mb / 21P	DDR-II Termination Regulator
	LP2997M/NOPB	1Mb / 28P	LP2997 DDR-II Termination Regulator REVISED APRIL 2013

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Mô tả tương tự - LP2997

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
ON Semiconductor	NCP5208	82Kb / 10P	DDR-I/II Termination Regulator February, 2004 ??Rev. 3
Global Mixed-mode Techn...	G2996	282Kb / 13P	DDR I/II Termination Regulator
ON Semiconductor	NCP5208	96Kb / 9P	DDR?묲/II Termination Regulator May, 2006 ??Rev. 5
Intersil Corporation	LP2998	338Kb / 18P	DDR-II and DDR-I Termination Regulator December 12, 2007
Unisonic Technologies	UR5595	295Kb / 12P	DDR TERMINATION REGULATOR
HTC Korea TAEJIN Techno...	TJ2995	632Kb / 9P	DDR Termination Regulator
Texas Instruments	LP2998MRX	1Mb / 26P	LP2998 DDR-I and DDR-II Termination Regulator
E-Tech Electronics LTD	UR5596	218Kb / 12P	DDR TERMINATION REGULATOR
Texas Instruments	LP2997	1Mb / 21P	DDR-II Termination Regulator
Texas Instruments	LP2998	2Mb / 33P	DDR Termination Regulator

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