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AIC1084-18CE

AIC1084-18CE

Model AIC1084-18CE
Description 5A Low Dropout Positive Adjustable Regulator
PDF file Total 6 pages (File size: 108K)
Chip Manufacturer AIC
AIC1084
5A Low Dropout Positive Adjustable Regulator
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FEATURES
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DESCRIPTION
The AIC1084 is a low dropout three terminal
regulator with 5A output current capability. The
output voltage is adjustable with the use of a
resistor divider or fixed 3.3V. Dropout voltage is
guaranteed to be at maximum of 1.4V with the
maximum output current. Its low dropout voltage
and fast transient response make it ideal for low
voltage microprocessor applications. Current limit
and thermal protection provide protection against
any overload condition that would create excessive
junction temperatures.
Dropout Voltage 1.3V at 5A
Output Current.
Fast Transient Response.
Extremely Tight Line and Load Regulation.
Current Limiting and Thermal Protection.
Adjustable Output Voltage or Fixed 1.5V, 1.8V,
3.3V.
Standard 3-Pin Power Packa
ges.
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APPLICATIONS
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Mother Board I/O Power Supplies.
Microprocessor Power Supplies.
High Current Regulator.
Post Regulator for Switching Supply.
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TYPICAL APPLICATION CIRCUIT
V
IN
5V
3
AIC1084
1 ADJ
C1 +
10
µ
F
2
V
OUT
3.3V
V
REF
RF1
125
1%
+
C2
RF2
10
µ
F
205
1%
V
R E F
=V
OUT
- V
ADJ
=1.25V (typ.)
V
OUT
=V
REF
x (1+RF2/RF1)+ I
ADJ
x RF2
I
ADJ
=55µA (typ.)
(1) C1 needed if device is far away from filter
capacitors.
(2) C2 required for stability.
Adjustable Voltage Regulator
V
IN
5V
3
AIC1084-33
1
2
V
OUT
3.3V
C1 +
10
µ
F
GND
+
C2
10
µ
F
Fixed Voltage Regulator
Analog Integrations Corporation
DS-1084-03
Sep 21, 01
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
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