Datasheet > LP2996

LP2996

更新时间： 2024-09-16 02:58:39

品牌	Logo	应用领域
德州仪器 - TI		双倍数据速率
页数	文件大小	规格书
26页	1472K
描述
DDR Termination Regulator

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LP2996 数据手册

LP2996-N

www.ti.com

SNOSA40J –NOVEMBER 2002–REVISED MARCH 2013

LP2996-N DDR Termination Regulator

Check for Samples: LP2996-N

FEATURES

DESCRIPTION

The LP2996-N linear regulator is designed to meet

the JEDEC SSTL-2 specifications for termination of

DDR-SDRAM. The device contains a high-speed

operational amplifier 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 LP2996-N

also incorporates a V_SENSEpin to provide superior

load regulation and a V_REFoutput as a reference for

the chipset and DIMMs.

•

Source and Sink Current

Low Output Voltage Offset

No External Resistors Required

Linear Topology

Suspend to Ram (STR) Functionality

Low External Component Count

Thermal Shutdown

Available in SOIC-8, SO PowerPAD-8 or

WQFN-16 packages

An additional feature found on the LP2996-N is an

active low shutdown (SD) pin that provides Suspend

To RAM (STR) functionality. When SD is pulled low

APPLICATIONS

•

DDR-I and DDR-II Termination Voltage

SSTL-2 and SSTL-3 Termination

HSTL Termination

the V_TToutput will tri-state providing

high

impedance output, but, V_REFwill remain active. A

power savings advantage can be obtained in this

mode through lower quiescent current.

Typical Application Circuit

LP2996

V_REF= 1.25V

V_REF

0.01mF

220mF

V_DDQ

V_DDQ= 2.5V

V_DD= 2.5V

V_SENSE

AV_IN

PV_IN

V_TT

V_TT= 1.25V

GND

47mF

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

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LP2996A	TI	获取价格	具有 DDR2/3/3L 关断引脚的 1.5A DDR 终端稳压器
LP2996AMR/NOPB	TI	获取价格	具有 DDR2/3/3L 关断引脚的 1.5A DDR 终端稳压器 \| DDA \| 8 \|
LP2996AMRE/NOPB	TI	获取价格	具有 DDR2/3/3L 关断引脚的 1.5A DDR 终端稳压器 \| DDA \| 8 \|
LP2996AMRX/NOPB	TI	获取价格	具有 DDR2/3/3L 关断引脚的 1.5A DDR 终端稳压器 \| DDA \| 8 \|
LP2996LQ	TI	获取价格	DDR Termination Regulator
LP2996LQ	ROCHESTER	获取价格	BUS TERMINATOR SUPPORT CIRCUIT, PQCC16, LLP-16
LP2996LQ	NSC	获取价格	DDR Termination Regulator
LP2996LQ/NOPB	ROCHESTER	获取价格	BUS TERMINATOR SUPPORT CIRCUIT, PQCC16, LLP-16
LP2996LQ/NOPB	TI	获取价格	DDR Termination Regulator
LP2996LQX	TI	获取价格	LP2996-N DDR Termination Regulator