LT1172MJ8 Linear Technology, LT1172MJ8 Datasheet - Page 2

• Manufacturer Part Number: LT1172MJ8
• Description: SP-SWREG/Monolithic, 100kHz 5A 2.5A And 1.25A High Efficiency Switching Regulato
• Manufacturer: Linear Technology

LT1 170/LT1 171/LT1172
ABSOLUTE AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
Supply Voltage
Switch Output Voltage
Feedback Pin Voltage (Transient, 1ms) ................ 15V
Storage Temperature Range ............... – 65 C to 150 C
Lead Temperature (Soldering, 10 sec)................. 300 C
2
* Do not connect Pin 4 of the LT1172 DIP or SO to external
circuitry. This pin may be active in future revisions.
LT1170/71/72HV (Note 2) .................................. 60V
LT1170/71/72 (Note 2) ....................................... 40V
LT1170/71/72HV ................................................ 75V
LT1170/71/72 ..................................................... 65V
LT1172S8 ........................................................... 60V
T
JMAX
FRONT VIEW
= 100 C,
Q PACKAGE
5-LEAD DD
T
T
depending on board layout (S)
GND
N8 PACKAGE
8-LEAD PDIP
JMAX
JMAX
NC*
V
FB
C
5
4
3
2
1
= 100 C,
= 100 C,
1
2
3
4
JA
= * C/W
TOP VIEW
V
V
GND
FB
V
IN
SW
C
W
JA
JA
8-LEAD PLASTIC SO
= 100 C/W (N)
= 120 C/W to 150 C/W
S8 PACKAGE
8
7
6
5
* will vary from
approximately
25 C/W with 2.8
sq. in. of 1oz.
copper to 45 C/W
with 0.20 sq. in. of
1oz. copper.
Somewhat lower
values can be
obtained with
additional copper
layers in multilayer
boards.
E2
V
E1
V
SW
IN
W W
U
S8 PART MARKING
W
ORDER PART
ORDER PART
LT1170CQ
LT1170IQ
LT1170HVCQ
LT1171CQ
LT1171IQ
LT1171HVCQ
LT1171HVIQ
LT1172CQ
LT1172HVCQ
LT1172HVIQ
LT1172CN8
LT1172IN8
LT1172CS8
LT1172IS8
NUMBER
NUMBER
U
1172
1172I
U
(Note 1)
Operating Junction Temperature Range
LT1170CT/LT1170HVCT
LT1171CT/LT1171HVCT
LT1172CT/LT1172HVCT
Based on continuous operation.
T
JMAX
LT1170/71/72M (OBSOLETE) .. – 55 C to 150 C
LT1170/71/72HVC,
LT1170/71/72HVC
LT1170/71/72HVI,
LT1170/71/72HVI,
Based on continuous operation.
T
= 125 C for intermittent fault conditions.
JMAX
LT1170/71/72C (Oper.) .............. 0 C to 100 C
LT1170/71/72C (Sh. Ckt.) .......... 0 C to 125 C
LT1170/71/72I (Oper.) .......... – 40 C to 100 C
LT1170/71/72I (Sh. Ckt.) ...... – 40 C to 125 C
GND
= 125 C for intermittent fault conditions.
NC
NC
NC
NC
NC
T
V
FB
JMAX
C
16-LEAD PLASTIC SO WIDE
1
2
3
4
5
6
7
8
5-LEAD PLASTIC TO-220
= 100 C,
SW PACKAGE
FRONT VIEW
TOP VIEW
T PACKAGE
5
4
3
2
1
T
100 C
100 C
100 C
JA
JMAX
= 150 C/W
16
15
14
13
12
11
10
9
2 C/W
4 C/W
8 C/W
NC
NC
E2
V
E1
V
NC
NC
JC
SW
IN
75 C/W
75 C/W
75 C/W
V
V
GND
FB
V
IN
SW
C
JA
ORDER PART
ORDER PART
LT1170CT
LT1170IT
LT1170HVCT
LT1170HVIT
LT1171CT
LT1171IT
LT1171HVCT
LT1171HVIT
LT1172CT
LT1172HVCT
LT1172CSW
NUMBER
NUMBER
117012ff
C
I