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LT1085CT#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22
LT1083/LT1084/LT1085
4
108345fh
For more information www.linear.com/LT1083
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LT1083CK NA LT1083CK 2-Lead TO-3 Metal Can Control: 0°C to 125°C
Power: 0°C to 150°C
LT1083MK NA LT1083MK 2-Lead TO-3 Metal Can Control: –55°C to 150°C
Power: –55°C to 200°C
LT1084CK NA LT1084CK 2-Lead TO-3 Metal Can Control: 0°C to 125°C
Power: 0°C to 150°C
LT1084MK NA LT1084MK 2-Lead TO-3 Metal Can Control: –55°C to 150°C
Power: –55°C to 200°C
LT1085CK NA LT1085CK 2-Lead TO-3 Metal Can Control: 0°C to 125°C
Power: 0°C to 150°C
LT1085MK NA LT1085MK 2-Lead TO-3 Metal Can Control: –55°C to 150°C
Power: –55°C to 200°C
OBSOLETE PACKAGE
Consult L
TC Marketing for parts specified with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
orDer inForMaTion
LT1083/LT1084/LT1085
5
108345fh
For more information www.linear.com/LT1083
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Reference Voltage I
OUT
= 10mA, T
J
= 25°C,
(V
IN
– V
OUT
) = 3V
10mA ≤ I
OUT
≤ I
FULL_LOAD
1.5V ≤ (V
IN
–
V
OUT
) ≤ 25V (Notes 4, 6, 7)
l
1.238
1.225
1.250
1.250
1.262
1.270
V
V
Line Regulation I
LOAD
= 10mA, 1.5V ≤ (V
IN
– V
OUT
) ≤ 15V, T
J
= 25°C (Notes 2, 3)
l
0.015
0.035
0.2
0.2
%
%
M-Grade: 15V ≤ (V
IN
–
V
OUT
) ≤ 35V (Notes 2, 3)
l
0.05 0.5 %
C-, I-Grades: 15V ≤ (V
IN
–
V
OUT
) ≤ 30V (Notes 2, 3)
l
0.05 0.5 %
Load Regulation (V
IN
– V
OUT
) = 3V, 10mA ≤ I
OUT
≤ I
FULL_LOAD
,
T
J
= 25°C
(Notes 2, 3, 4, 6)
l
0.1
0.2
0.3
0.4
%
%
Dropout Voltage ∆V
REF
= 1%, I
OUT
= I
FULL_LOAD
(Notes 5, 6, 8)
l
1.3 1.5 V
Current Limit
LT1083
LT1084
LT1085
(V
IN
– V
OUT
) = 5V
(V
IN
– V
OUT
) = 25V
(V
IN
– V
OUT
) = 5V
(V
IN
– V
OUT
) = 25V
(V
IN
– V
OUT
) = 5V
(V
IN
– V
OUT
) = 25V
l
l
l
l
l
l
8.0
0.4
5.5
0.3
3.2
0.2
9.5
1.0
6.5
0.6
4.0
0.5
A
A
A
A
A
A
Minimum Load Current (
V
IN
– V
OUT
) = 25V
l
5 10 mA
Thermal Regulation
LT1083
LT1084
LT1085
T
A
= 25°C, 30ms Pulse
0.002
0.003
0.004
0.010
0.015
0.020
%/W
%/W
%/W
Ripple Rejection f
= 120Hz, C
ADJ
= 25µF, C
OUT
= 25µF Tantalum
I
OUT
= I
FULL_LOAD
, (V
IN
– V
OUT
) = 3V (Notes 6, 7, 8)
l
60 75 dB
Adjust Pin Current T
J
= 25°C
l
55
120
µA
µA
Adjust Pin Current Change 10mA ≤ I
OUT
≤ I
FULL_LOAD
,
1.5V ≤ (V
IN
– V
OUT
) ≤ 25V (Note 6)
l
0.2 5 µA
Temperature Stability
l
0.5 %
Long-Term Stability T
A
= 125°C, 1000 Hrs 0.3 1 %
RMS Output Noise (% of V
OUT
) T
A
= 25°C, 10Hz = ≤ f ≤ 10kHz 0.003 %
Thermal Resistance Junction-to-Case
LT1083
LT1084
LT1085
Control Circuitry/Power Transistor
K Package
P Package
K Package
P Package
T Package
K Package
M, T Package
0.6/1.6
0.5/1.6
0.75/2.3
0.65/2.3
0.65/2.7
0.9/3.0
0.7/3.0
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
LT1083/LT1084/LT1085
6
108345fh
For more information www.linear.com/LT1083
elecTrical characTerisTics
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: See thermal regulation specifications for changes in output voltage
due to heating effects. Load and line regulation are measured at a constant
junction temperature by low duty cycle pulse testing.
Note 3: Line and load regulation are guaranteed up to the maximum power
dissipation (60W for the LT1083, 45W for the LT1084 (K, P), 30W for the
LT1084 (T) and 30W for the LT1085). Power dissipation is determined by
the input/output differential and the output current. Guaranteed maximum
power dissipation will not be available over the full input/output voltage
range.
Note 4: I
FULL_LOAD
is defined in the current limit curves. The I
FULL_LOAD
curve is defined as the minimum value of current limit as a function of
input-to-output voltage. Note that the 60W power dissipation for the
LT1083 (45W for the LT1084 (K, P), 30W for the LT1084 (T), 30W for the
LT1085) is only achievable over a limited range of input-to-output voltage.
Note 5: Dropout voltage is specified over the full output current range of
the device. Test points and limits are shown on the Dropout Voltage curve.
Note 6: For LT1083 I
FULL_LOAD
is 5A for –55°C ≤ T
J
< – 40°C and 7.5A for
T
J
≥ –40°C.
Note 7: 1.7V ≤ (V
IN
– V
OUT
) ≤ 25V for LT1084 at –55°C ≤ T
J
≤ – 40°C.
Note 8: Dropout is 1.7V maximum for LT1084 at –55°C ≤ T
J
≤ –40°C.
Note 9: The LT1083/LT1084/LT1085 regulators are tested and specified
under pulse load conditions such that T
J
≅ T
A
. The C-grade LT1083/
LT1084/LT1085 are 100% tested at 25°C.The I-grade LT1084/LT1085 are
guaranteed over the full –40°C to 125°C operating ambient temperature
range.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P22

LT1085CT#PBF

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