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G2995

Global Mixed-mode Technology
Part Number G2995
Manufacturer Global Mixed-mode Technology
Description DDR Termination Regulator
Published Nov 14, 2005
Detailed Description Global Mixed-mode Technology Inc. G2995 DDR Termination Regulator Features „ „ „ „ „ „ „ „ „ General Description The ...
Datasheet PDF File G2995 PDF File

G2995
G2995

Overview
Global Mixed-mode Technology Inc.
G2995 DDR Termination Regulator Features „ „ „ „ „ „ „ „ „ 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 provides excellent response to the load transients.
This device can deliver 1.
5A continuous current and transient 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 areas can be reduced.
The quiescent current is as low as 280µA @ 2.
5V.
So the power consumption can meet the low power consumption applications.
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 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 MARKING G2995 G2995 TEMP.
RANGE -40°C to 85°C -40°C to 85°C PACKAGE SOP-8 SOP-8 (FD) Pin Configuration Typical Application Circuit G2995 NC GND VSENSE VREF 1 2 3 4 8 7 6 5 VTT PVIN AVIN VDDQ 47µF + VDDQ=2.
5V VDDQ VREF + VREF=1.
25V 0.
01µF Thermal Pad VDD=2.
5V AVIN PVIN VSENSE VTT GND + VTT=1.
25V 220µF SOP-8 Ver: 1.
7 May 10, 2005 TEL: 886-3-5788833 http://www.
gmt.
com.
tw 1 Global Mixed-mode Technology Inc.
Absolute Maximum Ratings (1) G2995 Recommend Operation Range Operating Ambient Temperature Range TA…….
…………………………….
……….
-40°C t...


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