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G2995 の電気的特性と機能

G2995のメーカーはGlobal Mixed-mode Technologyです、この部品の機能は「DDR Termination Regulator」です。


製品の詳細 ( Datasheet PDF )

部品番号
G2995
部品説明
DDR Termination Regulator
メーカ
Global Mixed-mode Technology
ロゴ

Global Mixed-mode Technology ロゴ 




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G2995 Datasheet, G2995 PDF,ピン配置, 機能
Global Mixed-mode Technology Inc.
DDR Termination Regulator
G2995
Features
„ Operation Supply Voltage: 1.6V to 5.5V
„ Low Supply Current: 280µA @ 2.5V
„ Low Output Offset
„ Source and Sink Current
„ Low External Component Count
„ No Inductor Required
„ No external Resistors Required
„ Thermal Shutdown Protection
„ SOP-8L with Power-Pad package
Applications
„ DDR-SDRAM Termination Voltage
„ DDR-I / DDR-II Termination Voltage
„ SSTL-2
„ SSTL-3
General Description
The G2995 is a linear regulator designed to meet the
JEDEC SSTL-2 and SSTL-3 (Series Stub Termination
Logic) specifications for termination of DDR-SDRAM.
It contains a high-speed operational amplifier that pro-
vides excellent response to the load transients. This
device can deliver 1.5A continuous current and tran-
sient peaks up to 3A in the application as required for
DDR-SDRAM termination. With an independent VSENSE
pin, the G2995 can provide superior load regulation.
The G2995 provides a VREF output as the reference for
the applications of the chipset and DIMMs.
The G2995 can easily provide the accurate VTT and
VREF voltages without external resistors that PCB ar-
eas can be reduced. The quiescent current is as low
as 280µA @ 2.5V. So the power consumption can
meet the low power consumption applications.
Ordering Information
ORDER
NUMBER
G2995P1U
G2995F1U
Note: P1:SOP-8
U: Tape & Reel
ORDER NUMBER
(Pb free)
G2995P1Uf
G2995F1Uf
F1:SOP-8(FD)
(FD): Thermal Pad
Pin Configuration
MARKING
G2995
G2995
TEMP.
RANGE
-40°C to 85°C
-40°C to 85°C
PACKAGE
SOP-8
SOP-8 (FD)
Typical Application Circuit
NC 1
GND 2
VSENSE 3
VREF 4
G2995
SOP-8
8 VTT
7 PVIN
6 AVIN
5 VDDQ
Thermal
Pad
VDDQ=2.5V
VDDQ
VREF
VDD=2.5V
+
47µF
AVIN
VSENSE
PVIN
VTT
GND
+ VREF=1.25V
0.01µF
VTT=1.25V
+
220µF
Ver: 1.7
May 10, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
1

1 Page





G2995 pdf, ピン配列
Global Mixed-mode Technology Inc.
G2995
Typical Performance Characteristics
AVIN=2.5V, PVIN=2.5V, VDDQ=2.5V, CAVIN=0.1µF, CPVIN=47µF, CVREF=0.01µF, CVTT=220µF, TA=25°C, unless other-
wise noted.
IQ vs AVIN
270
250
230
210
190
170
150
2 2.5 3 3.5 4 4.5 5 5.5
AVIN(V)
VREF vs IREF
1.3
1.28
1.26
1.24
1.22
1.2
1.18
-30 -20 -10 0 10 20 30
IREF(µA)
VREF vs VDDQ
3
2.5
2
1.5
1
0.5
0
2 2.5 3 3.5 4 4.5 5 5.5
VDDQ(V)
VTT vs IOUT Temperature
1.252
1.248
1.244
1.24
0°C
1.236
25°C
85°C
1.232
-100 -75 -50 -25
0
25 50 75 100
IOUT(mA)
Ver: 1.7
May 10, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
3


3Pages


G2995 電子部品, 半導体
Global Mixed-mode Technology Inc.
G2995
Typical Performance Characteristics (continued)
AVIN=2.5V, PVIN=2.5V, VDDQ=2.5V, CAVIN=0.1µF/Ceramic X7R/0603/6.3V/TDK, CPVIN=68µF/6.3V POSCAP Se-
ries/SANYO, CVTT=330µF*2/6.3V POSCAP Series/SANYO, TA=25°C, unless otherwise noted.
ILoad=0.5A Transient (Sinking)
ILoad=0.5A Transient (Sourcing)
ILoad=1A Transient (Sinking)
ILoad=1A Transient (Sourcing)
ILoad=1.5A Transient (Sinking)
ILoad=1.5A Transient (Sourcing)
Ver: 1.7
May 10, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
6

6 Page

合計 : 12 ページ
PDF ダウンロード

[ G2995 データシート.PDF ]

データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。

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