AIC1383B
3A Termination Regulator


Analog Integrations Corporation Si-Soft Research Center DS-1383BP-03 010405
3A1, No.1, Li-Hsin Rd. I, Science Park, Hsinchu 300, Taiwan, R.O.C.
null FEATURES
null 3A Source and Sink Current Ability
null Support DDR1 (1.25V
TT
) and DDR2 (0.9V
TT
)
Requirements
null Low Output Voltage Offset, ±20mV
null High Accuracy Output Voltage at Full-Load
null Adjustable V
OUT
by External Resistor
null Low External Component Count
null Current Limit protection
null Thermal Protection
null SOP-8, TO-252 and TO-263 Packages

null APPLICATIONS
null Mother Board
null Graphic Cards
null DDR Termination Voltage Supply

null DESCRIPTION
AIC1383B linear regulator is designed to
achieve 3A source and sink current while
regulating an output voltage to within 45mV.
AIC1383B converts voltage supplies range
from 1.6V to 6V into an output voltage that
adjusts by two external voltage divider
resistors. It provides an excellent voltage
source for active termination schemes of high-
speed transmission lines as those seen in
high-speed memory buses, and it meets the
JEDEC SSTL-2 and SSTL-3 specifications for
termination of DDR-SRAM.
Built-in current limiting in source and sink
mode, with thermal shutdown provide
maximal protection to the AIC1383B against
fault conditions.

null
TYPICAL APPLICATION CIRCUIT


+ COUT
220µF
+
C
IN

470µF
+
C
CNTL
47µF
R1
100K
R2
100K
V
IN
=2.5V
VIN
1
GND
2
VCNTL
3
VOUT
5
VREF
4
AIC1383B
CES7002A
EN
C1
100pF
V
OUT

V
CNTL
=3.3V



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