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Analog Intergrations Corporation
Analog Intergrations Corporation

AIC1384 Datasheet Preview

AIC1384 Datasheet

DDR Termination Regulator

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AIC1384 pdf
FEATURES
Source and Sink Current Capability
Suspend To RAM Functionality
Support DDR (1.25VTT) and DDR (0.9VTT)
Requirements
Low Output Voltage Offset, ±20mV
High Accuracy Output Voltage at Full-Load
Low External Component Count
No external resistor required
Current Limit protection
Thermal Protection
SOP-8 and SOP-8 Exposed Pad (Heat Sink)
Package
APPLICATIONS
Mother board
Graphic cards
DDR and DDR
termination voltage
AIC1384
DDR Termination Regulator
DESCRIPTION
The AIC1384 linear regulator is designed to
deliver 1.5A continuous current and up to 3A
peak transient currents for termination of DDR-
SRAM. The AIC1384 contains a high-speed
operational amplifier to supply superior load
transient response. It also includes a VSENSE to
provide excellent load regulation and VREF
output as a reference for the chipset and
DIMMs. The AIC1384 supply accurate VTT and
VREF without external resistors that save PCB
areas.
The AIC1384 also features an active low
shutdown pin that provides Suspend To RAM
(STR) functionality. The VTT will remain high
impedance when in shutdown, but VREF will
keep active. The advantage of power saving
can be obtained through low 150µA (DDR )
quiescent current.
Built in current limiting in source and sink mode,
with thermal shutdown provide maximal
protection to the AIC1384 against fault
conditions.
TYPICAL APPLICATION CIRCUIT
SD
VREF=1.25V
1
2
3
4
10nF
GND
VTT 8
SD PVIN
VSENSE AVIN
7
6
VREF VDDQ 5
VDDQ=2.5V
AIC1384
VTT=1.25V
Cout
22uF
VIN=2.5V
Cin
47uF
Analog Integrations Corporation
Si-Soft Research Center
3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C.
TEL: 886-3-5772500
FAX: 886-3-5772510 www.analog.com.tw
DS-1384G-01 073108
1



Analog Intergrations Corporation
Analog Intergrations Corporation

AIC1384 Datasheet Preview

AIC1384 Datasheet

DDR Termination Regulator

No Preview Available !

AIC1384 pdf
AIC1384
ORDERING INFORMATION
AIC1384XXXX
PACKING TYPE
TR: TAPE & REEL
TB: TUBE
PACKAGING TYPE
S: SOP-8
SH: SOP-8 Exposed Pad (Heat Sink)
PIN CONFIGURATION
SOP-8
TOP VIEW
GND 1
SD 2
VSENSE 3
VREF 4
8 VTT
7 PVIN
6 AVIN
5 VDDQ
P: Lead Free Commercial
G: Green Package
Example: AIC1384PSTR
In Lead Free SOP-8 Package &
Taping & Reel Packing Type
SOP-8 Exposed Pad (Heat Sink)
TOP VIEW
GND 1
SD 2
VSENSE 3
(GND)
VREF 4
8 VTT
7 PVIN
6 AVIN
5 VDDQ
ABSOLUTE MAXIMUM RATINGS
PVIN, AVIN, VDDQ, SD , VSENSE, VREF, VTT, to GND
6.0V
Operating Temperature Range
-40°C ~ 85°C
Junction Temperature
125°C
Storage Temperature Range
- 65°C ~ 150°C
Lead Temperature (Soldering. 10 sec)
260°C
Thermal Resistance Junction to Ambient, RθJA (Assume no ambient airflow, no heatsink)
SOP-8
160°C /W
SOP-8 Exposed Pad (Heat Sink)
60°C /W
Thermal Resistance Junction to Case, RθJC SOP-8
SOP-8 Exposed Pad (Heat Sink)
40°C /W
16°C /W
Absolute Maximum Ratings are those values beyond which the life of a device may be Impaired.
TEST CIRCUIT
Refer to TYPICAL APPLICATION CIRCUIT.
2


Part Number AIC1384
Description DDR Termination Regulator
Maker Analog Intergrations Corporation
Total Page 15 Pages
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