LT1083_05 Datasheet, PDF (2/16 Pages) Linear Technology – 7.5A, 5A, 3A Low Dropout Positive Adjustable Regulators

LT1083/LT1084/LT1085
ABSOLUTE MAXIMUM RATINGS (Note 1)
Power Dissipation ............................... Internally Limited
Input-to-Output Voltage Differential
“C” Grades .......................................................... 30V
“I” Grades ............................................................ 30V
“M” Grades (OBSOLETE)............................ 35V
Operating Junction Temperature Range
“C” Grades: 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
PRECO DITIO I G
100% thermal shutdown functional test.
PACKAGE/ORDER INFORMATION
TAB
IS
OUTPUT
FRONT VIEW
3
2
1
T PACKAGE
3-LEAD PLASTIC TO-220
θ_JA = 50°C/W
ORDER PART
V_IN
NUMBER
V_OUT
LT1084CT
ADJ
LT1084IT
LT1085CT
LT1085IT
BOTTOM VIEW
V_IN
CASE IS
OUTPUT
2
1
ADJ
K PACKAGE
2-LEAD TO-3 METAL CAN
θ_JA = 35°C/W
LT1083CK
LT1083MK
LT1084CK
LT1084MK
LT1085CK
LT1085MK
OBSOLETE PACKAGE
TAB IS
OUTPUT
FRONT VIEW
3
2
1
V_IN
V_OUT
ADJ
P PACKAGE
3-LEAD PLASTIC TO-3P
θ_JA = 35°C/W
FRONT VIEW
TAB
IS
OUTPUT
3
V_IN
2
V_OUT
1
ADJ
M PACKAGE
3-LEAD PLASTIC DD
θ_JA = 30°C/W*
*WITH PACKAGE SOLDERED TO 0.5IN² 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.
ORDER PART
NUMBER
LT1083CP
LT1084CP
LT1085CM
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C.
PARAMETER
Reference Voltage
Line Regulation
CONDITIONS
MIN TYP MAX
UNITS
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)
1.238 1.250 1.262
V
● 1.225 1.250 1.270
V
I_LOAD = 10mA, 1.5V ≤ (V_IN – V_OUT) ≤ 15V, T_J = 25°C (Notes 2, 3)
●
0.015 0.2
%
0.035 0.2
%
M Grade: 15V ≤ (V_IN – V_OUT) ≤ 35V (Notes 2, 3)
C, I Grades: 15V ≤ (V_IN – V_OUT) ≤ 30V (Notes 2, 3)
●
0.05 0.5
%
●
0.05 0.5
%
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