LT1086_04 Datasheet, PDF (4/16 Pages) Linear Technology – 1.5A Low Dropout Positive Regulators Adjustable and Fixed 2.85V, 3.3V, 3.6V, 5V, 12V

LT1086 Series
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C.
PARAMETER
Current Limit
Minimum Load Current
Quiescient Current
Thermal Regulation
Ripple Rejection
Adjust Pin Current
CONDITIONS
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
LT1086/LT1086H (V_IN – V_OUT) = 25V (Note 5)
LT1086-2.85
LT1086-3.3
LT1086-3.6
LT1086-5
LT1086-12
V_IN ≤ 18V
V_IN ≤ 18V
V_IN ≤ 18V
V_IN ≤ 20V
V_IN ≤ 25V
T_A = 25°C, 30ms pulse
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 T_J = 25°C
Adjust Pin Current
Change
Temperature Stability
Long-Term Stability
RMS Output Noise
(% of V_OUT)
Thermal Resistance
Junction-to-Case
LT1086, LT1086H
10mA ≤ I_OUT ≤ 1.5A (0.5A for LT1086H)
1.5V ≤ (V_IN – V_OUT) ≤ 15V
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
MIN TYP MAX UNITS
q 1.50 2.00
A
q 0.05 0.15
A
q 0.50 0.700
A
q 0.02 0.075
A
q
5
10
mA
q
5
10
mA
q
5
10
mA
q
5
10
mA
q
5
10
mA
q
5
10
mA
0.008 0.04 %/W
q 60 75
dB
q 60 72
dB
q 60 72
dB
q 60 72
dB
q 60 68
dB
q 54 60
dB
55
µA
q
120
µA
q
0.2 5
µA
q
0.5
%
0.3 1
%
0.003
%
15/20 °C/W
1.7/4.0 °C/W
1.5/4.0 °C/W
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.
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