Datasheet

LT1074/LT1076
2
sn1074 1074fds
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
(Note 1)
*Assumes package is soldered to 0.5 IN
2
of 1 oz. copper over internal ground plane or over back side plane.
LT1076CQ
LT1076IQ
LT1076CR
LT1076IR
LT1076HVCR
LT1076HVIR
LT1074CT7
LT1074HVCT7
LT1074IT7
LT1074HVIT7
LT1076CT7
LT1076HVCT7
LT1074CT
LT1074HVCT
LT1074IT
LT1074HVIT
LT1076CT
LT1076HVCT
LT1076IT
LT1076HVIT
LT1074CK
LT1074HVCK
LT1074MK
LT1074HVMK
LT1076CK
LT1076HVCK
LT1076MK
LT1076HVMK
Input Voltage
LT1074/ LT1076 .................................................. 45V
LT1074HV/LT1076HV ......................................... 64V
Switch Voltage with Respect to Input Voltage
LT1074/ LT1076 .................................................. 64V
LT1074HV/LT1076HV ......................................... 75V
Switch Voltage with Respect to Ground Pin (V
SW
Negative)
LT1074/LT1076 (Note 7) ..................................... 35V
LT1074HV/LT1076HV (Note 7) ........................... 45V
Feedback Pin Voltage..................................... –2V, +10V
Shutdown Pin Voltage (Not to Exceed V
IN
) .............. 40V
I
LIM
Pin Voltage (Forced) ............................................ 5.5V
Maximum Operating Ambient Temperature Range
Commercial .................................................0°C to 70°C
Industrial ................................................ –40°C to 85°C
Military (OBSOLETE) ..................... –55°C to 125°C
Maximum Operating Junction Temperature Range
Commercial ............................................... 0°C to 125°C
Industrial .............................................. –40°C to 125°C
Military (OBSOLETE) .................... –55°C to 150°C
Maximum Storage Temperature ............... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)...................... 300°C
ORDER PART
NUMBER
ORDER PART
NUMBER
LT1076: θ
JC
= 4°C, θ
JA
= 30°C/W
LT1076: θ
JC
= 4°C, θ
JA
= 30°C/W
LT1074: θ
JC
= 2.5°C, θ
JA
= 50°C/W
LT1076: θ
JC
= 4°C, θ
JA
= 50°C/W
LT1074: θ
JC
= 2.5°C, θ
JA
= 35°C/W
LT1076: θ
JC
= 4°C, θ
JA
= 35°C/W
LT1074: θ
JC
= 2.5°C, θ
JA
= 50°C/W
LT1076: θ
JC
= 4°C, θ
JA
= 50°C/W
Q PACKAGE
5-LEAD PLASTIC DD
FRONT VIEW
V
IN
V
SW
GND
V
C
FB/SENSE
5
4
3
2
1
R PACKAGE
7-LEAD PLASTIC DD
FRONT VIEW
SHDN
V
C
FB/SENSE
GND
I
LIM
V
SW
V
IN
7
6
5
4
3
2
1
2
4
1
3
V
C
V
IN
V
SW
CASE
IS GND
FB
K PACKAGE
4-LEAD TO-3 METAL CAN
BOTTOM VIEW
T PACKAGE
5-LEAD PLASTIC TO-220
LEADS ARE FORMED STANDARD FOR
STRAIGHT LEADS, ORDER FLOW 06
V
IN
V
SW
GND
V
C
FB
FRONT VIEW
5
4
3
2
1
T7 PACKAGE
7-LEAD PLASTIC TO-220
SHDN
V
C
FB
GND
I
LIM
V
SW
V
IN
FRONT VIEW
7
6
5
4
3
2
1
TAB IS
GND
TAB IS
GND
TAB IS
GND
TAB IS
GND
Consult LTC Marketing for parts specified with wider operating temperature ranges.
OBSOLETE PACKAGE
Consider the T5 Package for Alternate Source