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PDF AIC1085-15CM Data sheet ( Hoja de datos )
| Número de pieza | AIC1085-15CM | |
| Descripción | 3A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR | |
| Fabricantes | Analog Intergrations Corporation | |
| Logotipo |  |
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AIC1085
3A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
SPEC NO: DS-1085-01 FEB 02, 01
n FEATURES
l Dropout Voltage 1.3V at 3A Output Current.
l Fast Transient Response.
l Extremely Tight Line and Load Regulation.
l Internal Thermal and Current Limiting.
l Adjustable Output Voltage or Fixed 1.5V, 1.8V,
3.3V.
l Standard 3-Pin Power Packages.
n APPLICATIONS
l Mother Board I/O Power Supplies.
l Microprocessor Power Supplies.
l High Current Regulator.
l Post Regulator for Switching Supply.
n DESCRIPTION
The AIC1085 is a low dropout three terminal
regulator with 3A output current capability. The
output voltage is adjustable with the use of a resistor
divider or fixed 1.5V, 1.8V, and 3.3V. Dropout is
guaranteed at a maximum of 1.4V at maximum
output current. Its low dropout voltage and fast
transient response make it ideal for low voltage
microprocessor applications. Internal current and
thermal limiting provides protection against any
overload condition that would create excessive
junction temperatures.
n TYPICAL APPLICATION CIRCUIT
VIN 3 AIC1085 2
5V
VOUT
3.3V
C1 +
10µF
1 ADJ
VREF RF1
125Ω
1% +
C2
RF2
205Ω
10µF
1%
Adjustable Voltage Regulator
VREF=VOUT - VADJ=1.25V (typ.)
VOUT=VREF x (1+RF2/RF1)+ IADJ x RF2
IADJ=55µA (typ.)
(1) C1 needed if device is far away from
filter capacitors.
(2) C2 required for stability.
VIN 3
5V
C1 +
10µF
AIC1085-33 2
1
GND
VOUT
3.3V
+
C2
10µF
Fixed Voltage Regulator
ANALOG INTEGRATIONS CORPORATION
4F,9IndustryE.9thRoad,Science-basedIndustrialPark,Hsinchu,Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
1
1 page  
AIC1085
3A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
SPEC NO: DS-1085-01 FEB 02, 01
n TYPICAL PERFORMANCE CHARACTERISTICS
0.1
0.05
0
-0.05
-0.1
1.5A
0.1A
0
Load Transient Response
V IN=5V
CIN=1µF
COUT=10 µF (Tantalum)
V OUT=3.3V
40
80
120 160
200
Time (µS)
50
0
--50
--100
7.0
6.0
0
Line Transient Response
COUT=10 µF (Tantalum)
VOUT=3.3V
10 20 30 40 50
Time (µS)
1.22
1.20
1.18
1.16
1.14
1.12
1.10
1.08
1.06
0.0
Dropout Voltage (VOUT=3.3V)
0.5 1.0
1.5
2.0 2.5
Output Current (A)
3.0
Minimum Operating Current
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
12 3
Differential Voltage (V)
4
5
ANALOG INTEGRATIONS CORPORATION
4F,9IndustryE.9thRoad,Science-basedIndustrialPark,Hsinchu,Taiwan, R.O.C.
www.analog.com.tw
TEL: (8863)577-2500 FAX:(8863)577-2510
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet AIC1085-15CM.PDF ] | |
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