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LT1085CT-12#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
LT1083/LT1084/LT1085 Fixed
1
1083ffe
For more information www.linear.com/LT1083
Typical applicaTion
DescripTion
3A, 5A, 7.5A Low Dropout
Positive Fixed Regulators
The LT
®
1083 series of positive adjustable regulators are
designed to provide 3A, 5A and 7.5A 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
currents. On-chip trimming adjusts the output voltage to
1%. Current limit is also trimmed, minimizing the stress
on both the regulator and power source circuitry under
overload conditions.
The LT1083 series devices are pin compatible with older
three-terminal regulators. A 10µF output capacitor is
required on these new devices; however, this is usually
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
Three-Terminal 3.3V, 3.6V, 5V and 12V
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
Adjustable Versions Available
n
High Efficiency Linear Regulators
n
Post Regulators for Switching Supplies
n
Constant Current Regulators
n
Battery Chargers
DEVICE OUTPUT CURRENT*
LT1083
LT1084
LT1085
7.5 Amps
5.0 Amps
3.0 Amps
*For a 1.5A low dropout regulator see the LT1086 data sheet.
5V, 7.5A Regulator
V
IN
≥ 6.5V 5V AT 7.5A
LT1083-5
LT1083/4/5 TA01
22µF*
TANTALUM
+
10µF
+
*REQUIRED FOR STABILITY
Dropout Voltage vs Output Current
OUTPUT CURRENT (A)
0
INPUT/OUTPUT VOLTAGE DIFFERENTIAL (V)
2
1
0
1083/4/5 TA02
I
FULLLOAD
/2
I
FULLLOAD
L, LT , LT C , LT M , Linear Technology, the Linear logo and OPTI-LOOP are registered trademarks
and UltraFast is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
LT1083/LT1084/LT1085 Fixed
2
1083ffe
For more information www.linear.com/LT1083
absoluTe MaxiMuM raTings
orDer inForMaTion
Power Dissipation .............................. Internally Limited
Input Voltage* .......................................................... 30V
Operating Input Voltage
3.3V, 3.6V Devices ............................................... 20V
5V Devices
........................................................... 20V
12V Devices
......................................................... 25V
Operating Junction Temperature Range
C-G
rades:
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 Limit Functional Test.
*Although the devices maximum operating voltage is limited, (20V for
a 3V, 5V device, and 25V for a 12V device) the devices are guaranteed
to withstand transient input voltages up to 30V. For input voltages
greater than the maximum operating input voltage some degradation of
specifications will occur. For input/output voltage differentials greater than
15V, a minimum external load of 5mA is required to maintain regulation.
(Note 1)
preconDiTioning
TAB IS
OUTPUT
T PACKAGE
3-LEAD PLASTIC TO-220
V
IN
V
OUT
GND
FRONT VIEW
3
2
1
θ
JA
= 50°C/W
V
IN
V
OUT
GND
P PACKAGE
3-LEAD TO-3P PLASTIC
FRONT VIEW
TAB IS
OUTPUT
3
2
1
θ
JA
= 35°C/W
OBSOLETE PACKAGE
1
2
V
IN
CASE IS
OUTPUT
GND
K PACKAGE
2-LEAD TO-3 METAL CAN
θ
JA
= 35°C/W
OBSOLETE PACKAGE
TAB IS
OUTPUT
M PACKAGE
3-LEAD PLASTIC DD
FRONT VIEW
V
IN
V
OUT
GND
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
LT1083/LT1084/LT1085 Fixed
3
1083ffe
For more information www.linear.com/LT1083
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT1083CP-5#PBF NA LT1083CP-5 3-Lead Plastic TO-3P Control: 0°C to 125°C
Power: 0°C to 150°C
LT1083CP-12#PBF NA LT1083CP-12 3-Lead Plastic TO-3P Control: 0°C to 125°C
Power: 0°C to 150°C
LT1084CP-5#PBF NA LT1084CP-5 3-Lead Plastic TO-3P Control: 0°C to 125°C
Power: 0°C to 150°C
LT1084CP-12#PBF NA LT1084CP-12 3-Lead Plastic TO-3P Control: 0°C to 125°C
Power: 0°C to 150°C
OBSOLETE PACKAGE
LT1084CT-3.3#PBF NA LT1084C
T-3.3 3-Lead Plastic TO-220 Control: 0°C to 125°C
Power: 0°C to 150°C
LT1084CT-5#PBF NA LT1084CT-5 3-Lead Plastic TO-220 Control: 0°C to 125°C
Power: 0°C to 150°C
LT1084
CT-12#PBF NA LT1084C
T-12 3-Lead Plastic TO-220 Control: 0°C to 125°C
Power: 0°C to 150°C
LT1085CT-3.3#PBF NA LT1085C
T-3.3 3-Lead Plastic TO-220 Control: 0°C to 125°C
Power: 0°C to 150°C
LT1085CT-3.6#PBF NA LT1085C
T-3.6 3-Lead Plastic TO-220 Control: 0°C to 125°C
Power: 0°C to 150°C
LT1085CT-5#PBF NA LT1085CT-5 3-Lead Plastic TO-220 Control: 0°C to 125°C
Power: 0°C to 150°C
LT1085
CT-12#PBF NA LT1085-12 3-Lead Plastic TO-220 Control: 0°C to 125°C
Power: 0°C to 150°C
LT1085CM-3.3#PBF LT1085CM-3.3#TRPBF
LT1085CM-3.3 3-Lead Plastic DD Control: 0°C to 125°C
Power: 0°C to 150°C
LT1085CM-3.6#PBF LT1085CM-3.6#TRPBF LT1085CM-3.6 3-Lead Plastic DD Control: 0°C to 125°C
Power: 0°C to 150°C
LT1085IM-3.6#PBF LT1085IM-3.6#TRPBF LT1085IM-3.6 3-Lead Plastic DD Control: –40°C to 125°C
Power: –40°C to 150°C
LEAD BASED FINISH TAPE AND REEL
PART MARKING P
ACKAGE DESCRIPTION TEMPERATURE RANGE
LT1083CP-5 NA LT1083CP-5 3-Lead Plastic TO-3P Control: 0°C to 125°C
Power: 0°C to 150°C
LT1083CP-12 NA LT1083CP-12 3-Lead Plastic TO-3P Control: 0°C to 125°C
Power: 0°C to 150°C
LT1084CP-5 NA LT1084CP-5 3-Lead Plastic TO-3P Control: 0°C to 125°C
Power: 0°C to 150°C
LT1084CP-12 NA LT1084CP-12 3-Lead Plastic TO-3P Control: 0°C to 125°C
Power: 0°C to 150°C
LT1083CK-5 NA LT1083CK-5 2-Lead TO-3 Metal Can Control: 0°C to 125°C
Power: 0°C to 150°C
LT1083CK-12 NA LT1083CK-12 2-Lead TO-3 Metal Can Control: 0°C to 125°C
Power: 0°C to 150°C
LT1083MK-5 NA LT1083MK-5 2-Lead TO-3 Metal Can Control: –55°C to 150°C
Power: –55°C to 200°C
LT1083MK-12 NA LT1083MK-12 2-Lead TO-3 Metal Can Control: –55°C to 150°C
Power: –55°C to 200°C
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

LT1085CT-12#PBF

Mfr. #:
Buy LT1085CT-12#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
LDO Voltage Regulators 3A, 5A, 7.5A L Drop Pos Fixed Regs
Lifecycle:
New from this manufacturer.
Delivery:
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