AIC1383
1.5A Termination Regulator


Analog Integrations Corporation Si-Soft Research Center DS-1383P-02 010405
3A1, No.1, Li-Hsin Rd. I, Science Park, Hsinchu 300, Taiwan, R.O.C.
null FEATURES
null 1.5A 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 Package

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

null DESCRIPTION
AIC1383 linear regulator is designed to achieve
1.5A source and sink current while regulating
an output voltage to within 25mV.
AIC1383 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 AIC1383 against fault
conditions.

null
TYPICAL APPLICATION CIRCUIT


100K
100pF
EN
+
C
OUT
220µF
+
C
IN

470µF
R1
100K
R2
V
IN
=2.5V
CES7002A
C1
1
2
4
3
+
C
CNTL
47µF
V
CNTL
=3.3VVIN
GND
VCNTL
8
VOUT
VREF
VCNTL
7
VCNTL
6
VCNTL
5
AIC1383
V
OUT
=1.25V





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