LT1086 Series
ELECTRICAL CHARACTERISTICS
PARAMETER
Current Limit
CONDITIONS
The
q
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.
MIN
q
q
q
q
q
q
q
q
q
q
TYP
2.00
0.15
0.700
0.075
5
5
5
5
5
5
0.008
MAX
UNITS
A
A
A
A
LT1086/-2.85/-3.3/-3.6/-5/-12 (V
IN
– V
OUT
) = 5V
(V
IN
– V
OUT
) = 25V
LT1086H
(V
IN
– V
OUT
) = 5V
(V
IN
– V
OUT
) = 25V
(V
IN
– V
OUT
) = 25V (Note 5)
V
IN
≤
18V
V
IN
≤
18V
V
IN
≤
18V
V
IN
≤
20V
V
IN
≤
25V
1.50
0.05
0.50
0.02
Minimum Load Current
Quiescient Current
LT1086/LT1086H
LT1086-2.85
LT1086-3.3
LT1086-3.6
LT1086-5
LT1086-12
T
A
= 25°C, 30ms pulse
10
10
10
10
10
10
0.04
mA
mA
mA
mA
mA
mA
%/W
dB
dB
dB
dB
dB
dB
Thermal Regulation
Ripple Rejection
f = 120Hz, C
OUT
= 25µF Tantalum, I
OUT
= 1.5A, (I
OUT
= 0.5A for LT1086H)
LT1086, LT1086H
C
ADJ
= 25µF, (V
IN
– V
OUT
) = 3V
LT1086-2.85
V
IN
= 6V
LT1086-3.3
V
IN
= 6.3V
LT1086-3.6
V
IN
= 6.6V
LT1086-5
V
IN
= 8V
LT1083-12
V
IN
= 15V
LT1086, LT1086H
LT1086, LT1086H
T
J
= 25°C
q
q
q
q
q
q
q
60
60
60
60
60
54
75
72
72
72
68
60
55
120
0.2
0.5
0.3
0.003
15/20
1.7/4.0
1.5/4.0
1.5/4.0
1
5
Adjust Pin Current
Adjust Pin Current
Change
Temperature Stability
Long-Term Stability
RMS Output Noise
(% of V
OUT
)
Thermal Resistance
Junction-to-Case
µA
µA
µA
%
%
%
°C/W
°C/W
°C/W
°C/W
10mA
≤
I
OUT
≤
1.5A (0.5A for LT1086H)
1.5V
≤
(V
IN
– V
OUT
)
≤
15V
q
q
T
A
= 125°C, 1000 Hrs.
T
A
= 25°C, 10Hz =
≤
f
≤
10kHz
H Package: Control Circuitry/Power Transistor
K Package: Control Circuitry/Power Transistor
M Package: Control Circuitry/Power Transistor
T Package: Control Circuitry/Power Transistor
Note 1:
Absolute Maximum Ratings are those values beyond which the life of
a device may be impaired.
Note 2:
See Thermal Regulation specifications for changes in output
voltage due to heating effects. Line and load regulation are measured at a
constant junction temperature by low duty cycle pulse testing. Load
regulation is measured at the output lead
≈1/8"
from the package.
Note 3:
Line and load regulation are guaranteed up to the maximum power
dissipation of 15W (3W for the LT1086H). 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
range. See Short-Circuit Current curve for available output current.
Note 4:
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 5:
Minimum load current is defined as the minimum output current
required to maintain regulation. At 25V input/output differential the device
is guaranteed to regulate if the output current is greater than 10mA.
sn1086 1086ffs
4
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