LT1074 Linear Technology, LT1074 Datasheet - Page 2

• Manufacturer Part Number: LT1074
• Description: Step-Down Switching Regulator
• Manufacturer: Linear Technology

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