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L1085TG Schematic ( PDF Datasheet ) - Niko-Sem

Teilenummer L1085TG
Beschreibung 3A Adjustable Low Dropout Linear Regulator
Hersteller Niko-Sem
Logo Niko-Sem Logo 




Gesamt 7 Seiten
L1085TG Datasheet, Funktion
NIKO-SEM
3A Adjustable Low Dropout
Linear Regulator (LDO)
L1085XG
TO-252,263,220
Lead-Free
GENERAL DESCRIPTION
The L1085G is a positive and low dropout
three-terminal voltage regulator with 3A out-
put current capability. This device is design-
ed for use in low voltage applications that
offers lower dropout voltage and faster tran-
sient response.
This device is fully protected against over
current faults, over temperature operation,
reversed input polarity, reversed lead insert-
ion, transient voltage spike …etc.
On-Chips trimming the reference voltage to
1% and features the low dropout of maxi-
mum 1.45 volts.
The L1085G Series regulators are available
in the popular industry standard TO-220
TO-263 and TO-252 packages.
FEATURES
z Very easy to use, it requires only two
external resistors to set the output voltage
z Low dropout voltage:
1.3V typical at up to 3A
z Low ground current
z Fast transient response
z Current & thermal limiting
z Line regulation: 0.5% typical
z Load regulation: 0.5% typical
z TO-220, TO-263 and TO-252 packages
APPLICATIONS
z High current microprocessor supplies
z Low voltage logic supply
z Powering VGA & sound card
z Portable instrumentation
z Constant current regulator
z Post regulator for switching power supply
TYPICAL APPLICATION
Vin
Cin
10uF
+
L1085
IN OUT
ADJ Vref
Iadj
Vout
R1
Cout
+
10uF
R2
Vo = Vref (1+R2/R1) + Iadj x R2
1. Cin needed if device is far from from filter capacitors.
2. Cout required for stability.
- Basic Adjustable Regulator Circuit -
1
JUL-15-2004
Free Datasheet http://www.Datasheet4U.com






L1085TG Datasheet, Funktion
NIKO-SEM
3A Adjustable Low Dropout
Linear Regulator (LDO)
L1085XG
TO-252,263,220
Lead-Free
TO-220 (3-Lead) MECHANICAL DATA
Dimension
A
B
C
D
E
F
G
Min.
9.78
2.61
28.5
14.6
8.4
0.72
mm
Typ.
10.16
2.74
20
28.9
15.0
8.8
0.8
Max.
10.54
2.87
29.3
15.4
9.2
0.88
Dimension
H
I
J
K
L
M
N
Min.
2.4
1.19
4.4
1.14
2.3
0.26
mm
Typ.
2.54
1.27
4.6
1.27
2.6
0.46
7°
Max.
2.68
1.35
4.8
1.4
2.9
0.66
J
AK
12 3
I
H
G
L
M
6 JUL-15-2004
Free Datasheet http://www.Datasheet4U.com

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