Datasheet

LT1083/LT1084/LT1085 Fixed
2
1083ffe
For more information www.linear.com/LT1083
absoluTe MaxiMuM raTings
orDer inForMaTion
Power Dissipation .............................. Internally Limited
Input Voltage* .......................................................... 30V
Operating Input Voltage
3.3V, 3.6V Devices ............................................... 20V
5V Devices
........................................................... 20V
12V Devices
......................................................... 25V
Operating Junction Temperature Range
C-G
rades:
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
100% Thermal Limit Functional Test.
*Although the devices maximum operating voltage is limited, (20V for
a 3V, 5V device, and 25V for a 12V device) the devices are guaranteed
to withstand transient input voltages up to 30V. For input voltages
greater than the maximum operating input voltage some degradation of
specifications will occur. For input/output voltage differentials greater than
15V, a minimum external load of 5mA is required to maintain regulation.
(Note 1)
preconDiTioning
TAB IS
OUTPUT
T PACKAGE
3-LEAD PLASTIC TO-220
V
IN
V
OUT
GND
FRONT VIEW
3
2
1
θ
JA
= 50°C/W
V
IN
V
OUT
GND
P PACKAGE
3-LEAD TO-3P PLASTIC
FRONT VIEW
TAB IS
OUTPUT
3
2
1
θ
JA
= 35°C/W
OBSOLETE PACKAGE
1
2
V
IN
CASE IS
OUTPUT
GND
K PACKAGE
2-LEAD TO-3 METAL CAN
θ
JA
= 35°C/W
OBSOLETE PACKAGE
TAB IS
OUTPUT
M PACKAGE
3-LEAD PLASTIC DD
FRONT VIEW
V
IN
V
OUT
GND
3
2
1
θ
JA
= 30°C/W*
*WITH PACKAGE SOLDERED TO 0.5IN
2
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