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LT1085IM#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
LT1083/LT1084/LT1085
1
108345fh
For more information www.linear.com/LT1083
Typical applicaTion
DescripTion
7.5A, 5A, 3A Low Dropout
Positive Adjustable Regulators
The LT
®
1083 series of positive adjustable regulators are
designed to provide 7.5A, 5A and 3A with higher efficiency
than currently available devices. All internal circuitry is
designed to operate down to 1V input-to-output differential
and the dropout voltage is fully specified as a function of
load current. Dropout is guaranteed at a maximum of 1.5V
at maximum output current, decreasing at lower load cur
-
rents. On-chip trimming adjusts the reference voltage to
1%. Current limit is also trimmed
, minimizing the stress
on both the regulator and power source circuitry under
overload conditions.
The LT1083/LT1084/LT1085 devices are pin compatible
with older 3-terminal regulators. A 10µF output capacitor
is required on these new devices. However, this is included
in most regulator designs.
Unlike PNP regulators, where up to 10% of the output cur
-
rent is wasted as quiescent current, the LT1083 quiescent
current flows into the load, increasing efficiency.
FeaTures
applicaTions
n
3-Terminal Adjustable
n
Output Current of 3A, 5A or 7.5A
n
Operates Down to 1V Dropout
n
Guaranteed Dropout Voltage at Multiple Current Levels
n
Line Regulation: 0.015%
n
Load Regulation: 0.1%
n
100% Thermal Limit Functional Test
n
Fixed Versions Available
n
Available in 3-Lead Plastic TO-220 and DD Packages
n
High Efficiency Linear Regulators
n
Post Regulators for Switching Supplies
n
Constant Current Regulators
n
Battery Chargers
DEVICE OUTPUT CURRENT*
LT1083
LT1084
LT1085
7.5A
5.0A
3.0A
*For a 1.5A low dropout regulator see the LT1086 data sheet.
121Ω
1%
IN
OUT
ADJ
365Ω
1%
10µF
5V AT 7.5A
LT1083
V
IN
≥ 6.5V
1083/4/5 ADJ TA01
+
10µF*
TANTALUM
+
*REQUIRED FOR STABILITY
5V, 7.5A Regulator
OUTPUT CURRENT
0
INPUT/OUTPUT VOLTAGE DIFFERENTIAL (V)
2
1
0
1083/4/5 ADJ TA02
I
FULL LOAD
Dropout Voltage vs Output Current
L, LT , LT C, LTM, Linear Technology and the Linear logo are registered trademarks and
UltraFast and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks
are the property of their respective owners.
LT1083/LT1084/LT1085
2
108345fh
For more information www.linear.com/LT1083
preconDiTioning
absoluTe MaxiMuM raTings
Power Dissipation ............................... Internally Limited
Input-to-Output Voltage Differential
C-G
rades
...............................................................30V
I-Grades
................................................................ 30V
M-Grades
(OBSOLETE) ........................................35V
Operating Junction Temperature Range (Note 9)
C-Grades: Control Section ................... 0°C to 125°C
Power Transistor ................. 0°C to 150°C
I-Grades: Control Section ...............– 40°C to 125°C
Power Transistor ............. – 40°C to 150°C
M-Grades: (OBSOLETE)
Control Section ...............– 55°C to 150°C
Power Transistor .............–55°C to 200°C
Storage Temperature Range ..................– 65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................... 300°C
100% thermal shutdown functional test.
(Note 1)
T PACKAGE
3-LEAD PLASTIC TO-220
FRONT VIEW
TAB
IS
OUTPUT
3
2
1
V
IN
V
OUT
ADJ
θ
JA
= 50°C/W
V
IN
V
OUT
ADJ
P PACKAGE
3-LEAD PLASTIC TO-3P
FRONT VIEW
TAB IS
OUTPUT
3
2
1
θ
JA
= 35°C/W
OBSOLETE PACKAGE
1
2
V
IN
CASE IS
OUTPUT
BOTTOM VIEW
ADJ
K PACKAGE
2-LEAD TO-3 METAL CAN
θ
JA
= 35°C/W
OBSOLETE PACKAGE
V
IN
V
OUT
ADJ
3
2
1
M PACKAGE
3-LEAD PLASTIC DD
FRONT VIEW
TAB
IS
OUTPUT
3
2
1
θ
JA
= 30°C/W*
*WITH PACKAGE SOLDERED TO 0.5IN
2
COPPER AREA OVER
BACKSIDE GROUND PLANE OR INTERNAL POWER PLANE. θ
JA
CAN VARY
FROM 20°C/W TO >40°C/W DEPENDING ON MOUNTING TECHNIQUE
pin conFiguraTion
LT1083/LT1084/LT1085
3
108345fh
For more information www.linear.com/LT1083
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT1083CP#PBF NA LT1083CP 3-Lead Plastic TO-3P Control: 0°C to 125°C
Power: 0°C to 150°C
LT1084CP#PBF NA LT1084CP 3-Lead Plastic TO-3P Control: 0°C to 125°C
Power: 0°C to 150°C
OBSOLETE PACKAGE
LT1084CT#PBF NA LT1084CT 3-Lead Plastic TO-220 Control: 0°C to 125°C
Power: 0°C to 150°C
LT1084IT#PBF NA LT1084IT 3-Lead Plastic TO-220 Control: –40°C to 125°C
Power: –40°C to 150°C
LT1085CT#PBF NA LT1085CT 3-Lead Plastic TO-220 Control: 0°C to 125°C
Power: 0°C to 150°C
LT1085IT#PBF NA LT1085IT 3-Lead Plastic TO-220 Control: –40°C to 125°C
Power: –40°C to 150°C
LT1085CM#PBF
LT1085CM#TRPBF LT1085CM 3-Lead Plastic DD Control: 0°C to 125°C
Power: 0°C to 150°C
LT1085IM#PBF LT1085IM#TRPBF
LT1085IM 3-Lead Plastic DD Control: –40°C to 125°C
Power: –40°C to 150°C
LEAD BASED FINISH TAPE AND REEL
PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT1083CP NA LT1083CP 3-Lead Plastic TO-3P Control: 0°C to 125°C
Power: 0°C to 150°C
LT1084CP NA LT1084CP 3-Lead Plastic TO-3P Control: 0°C to 125°C
Power: 0°C to 150°C
OBSOLETE PACKAGE
LT1084CT NA LT1084CT 3-Lead Plastic TO-220 Control: 0°C to 125°C
Power: 0°C to 150°C
LT1084IT NA LT1084IT 3-Lead Plastic TO-220 Control: –40°C to 125°C
Power: –40°C to 150°C
LT1085CT NA LT1085CT 3-Lead Plastic TO-220 Control: 0°C to 125°C
Power: 0°C to 150°C
LT1085IT NA LT1085IT 3-Lead Plastic TO-220 Control: –40°C to 125°C
Power: –40°C to 150°C
LT1085CM LT1085CM#TR LT1085CM 3-Lead Plastic DD Control: 0°C to 125°C
Power: 0°C to 150°C
LT1085IM LT1085IM#TR LT1085IM 3-Lead Plastic DD Control: –40°C to 125°C
Power: –40°C to 150°C
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

LT1085IM#TRPBF

Mfr. #:
Buy LT1085IM#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
LDO Voltage Regulators 3A Low Dropout Regulator
Lifecycle:
New from this manufacturer.
Delivery:
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