Datasheet

2
LT1086 Series
sn1086 1086ffs
PRECONDITIONING
UUU
Power Dissipation............................... Internally Limited
Input Voltage* ......................................................... 30V
Operating Input Voltage
Adjustable Devices ........................................... 25V
2.85V Devices .................................................. 18V
3.3V, 3.6V, and 5V Devices ............................... 20V
12V Devices ...................................................... 25V
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
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
ABSOLUTE MAXIMUM RATINGS
W
WW
U
100% Thermal Shutdown Functional Test.
PACKAGE/ORDER INFORMATION
W
U
U
LT1086CM
LT1086CM-3.3
LT1086CM-3.6
LT1086IM
LT1086IM-3.3
ORDER
PART NUMBER
ORDER
PART NUMBER
LT1086CH
LT1086MH
ORDER
PART NUMBER
ORDER
PART NUMBER
LT1086CK
LT1086CK-5
LT1086CK-12
LT1086IK
LT1086IK-5
LT1086IK-12
LT1086MK
LT1086MK-5
LT1086MK-12
θ
JA
= 150°C/W
2
1
V
IN
CASE
IS OUTPUT
ADJ (GND)*
K PACKAGE
2-LEAD TO-3 METAL CAN
BOTTOM VIEW
θ
JA
= 35°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.
V
IN
V
OUT
ADJ
(GND)
†
M PACKAGE
3-LEAD PLASTIC DD
FRONT VIEW
TAB IS
OUTPUT
3
2
1
T PACKAGE
3-LEAD PLASTIC TO-220
FRONT VIEW
TAB IS
OUTPUT
3
2
1
V
IN
V
OUT
ADJ
(GND)
†
θ
JA
= 50°C/W
LT1086CT
LT1086CT-2.85
LT1086CT-3.3
LT1086IT
LT1086IT-5
LT1086IT-12
LT1086CT-3.6
LT1086CT-5
LT1086CT-12
θ
JA
= 30°C/W**
†
For fixed versions.
BOTTOM VIEW
V
IN
V
OUT
(CASE)
ADJ
13
2
H PACKAGE
3-LEAD TO-39 METAL CAN
(Note 1)
* Although the device’s maximum operating voltage is limited, (18V for a
2.85V device, 20V for a 5V device, and 25V for adjustable and12V devices) 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 fixed voltage devices operating at
input/output voltage differentials greater than 15V, a minimum external load
of 5mA is required to maintain regulation.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
OBSOLETE PACKAGES
Consider the T Package for Alternate Source