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LT1086CK Datasheet(PDF) 4 Page - Linear Technology

Part # LT1086CK
Description  1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1086CK Datasheet(HTML) 4 Page - Linear Technology

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4
LT1086 Series
sn1086 1086ffs
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Current Limit
LT1086/-2.85/-3.3/-3.6/-5/-12 (VIN – VOUT) = 5V
q
1.50
2.00
A
(VIN – VOUT) = 25V
q
0.05
0.15
A
LT1086H
(VIN – VOUT) = 5V
q
0.50
0.700
A
(VIN – VOUT) = 25V
q
0.02
0.075
A
Minimum Load Current
LT1086/LT1086H
(VIN – VOUT) = 25V (Note 5)
q
510
mA
Quiescient Current
LT1086-2.85
VIN ≤ 18V
q
510
mA
LT1086-3.3
VIN ≤ 18V
q
510
mA
LT1086-3.6
VIN ≤ 18V
q
510
mA
LT1086-5
VIN ≤ 20V
q
510
mA
LT1086-12
VIN ≤ 25V
q
510
mA
Thermal Regulation
TA = 25°C, 30ms pulse
0.008
0.04
%/W
Ripple Rejection
f = 120Hz, COUT = 25µF Tantalum, IOUT = 1.5A, (IOUT = 0.5A for LT1086H)
LT1086, LT1086H
CADJ = 25µF, (VIN – VOUT) = 3V
q
60
75
dB
LT1086-2.85
VIN = 6V
q
60
72
dB
LT1086-3.3
VIN = 6.3V
q
60
72
dB
LT1086-3.6
VIN = 6.6V
q
60
72
dB
LT1086-5
VIN = 8V
q
60
68
dB
LT1083-12
VIN = 15V
q
54
60
dB
Adjust Pin Current
LT1086, LT1086H
TJ = 25°C55
µA
q
120
µA
Adjust Pin Current
LT1086, LT1086H
10mA
≤ IOUT ≤ 1.5A (0.5A for LT1086H)
Change
1.5V
≤ (VIN – VOUT) ≤ 15V
q
0.2
5
µA
Temperature Stability
q
0.5
%
Long-Term Stability
TA = 125°C, 1000 Hrs.
0.3
1
%
RMS Output Noise
TA = 25°C, 10Hz = ≤ f ≤ 10kHz
0.003
%
(% of VOUT)
Thermal Resistance
H Package: Control Circuitry/Power Transistor
15/20
°C/W
Junction-to-Case
K Package: Control Circuitry/Power Transistor
1.7/4.0
°C/W
M Package: Control Circuitry/Power Transistor
1.5/4.0
°C/W
T Package: Control Circuitry/Power Transistor
1.5/4.0
°C/W
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.
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C.


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