Datasheet

2
LTC1174
LTC1174-3.3/LTC1174-5
1174fe
(Note 1)
(Voltage Referred to GND Pin)
Input Supply Voltage (Pin 6)
LTC1174 ........................................... 0.3V to 13.5V
LTC1174HV ...................................... 0.3V to 18.5V
Switch Current (Pin 5) .............................................. 1A
Switch Voltage (Pin 5)
LTC1174 ................................................. V
IN
– 13.5V
LTC1174HV ............................................ V
IN
– 18.5V
Operating Temperature Range
LTC1174CX ............................................ 0°C to 70°C
LTC1174IX ........................................ – 40°C to 85°C
Junction Temperature (Note 2)............................ 125°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
ORDER PART NUMBER
S8 PART MARKING
LTC1174CS8
LTC1174CS8-3.3
LTC1174CS8-5
LTC1174IS8
LTC1174HVCS8
LTC1174HVCS8-3.3
LTC1174HVCS8-5
LTC1174HVIS8
1174
117433
117450
1174I
1174H
1174H3
1174H5
1174HI
T
JMAX
= 125°C, θ
JA
= 150°C/W
ORDER PART NUMBER
LTC1174CN8
LTC1174CN8-3.3
LTC1174CN8-5
LTC1174IN8
LTC1174HVCN8
LTC1174HVCN8-3.3
LTC1174HVCN8-5
T
JMAX
= 125°C, θ
JA
= 110°C/W
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
1
2
3
4
8
7
6
5
TOP VIEW
V
OUT
(V
FB
*)
LB
OUT
LB
IN
GND
SHUTDOWN
I
PGM
V
IN
SW
N8 PACKAGE
8-LEAD PDIP
* ADJUSTABLE OUTPUT VERSION
1
2
3
4
8
7
6
5
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SO
* ADJUSTABLE OUTPUT VERSION
V
OUT
(V
FB
*)
LB
OUT
LB
IN
GND
SHUTDOWN
I
PGM
V
IN
SW
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
The denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 9V, V
SHUTDOWN
= V
IN
, I
PGM
= 0V, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
FB
Feedback Current LTC1174/LTC1174HV 1 µA
V
FB
Feedback Voltage LTC1174/LTC1174HV 1.20 1.25 1.30 V
V
OUT
Regulated Output Voltage LTC1174-3.3/LTC1174HV-3.3 3.14 3.30 3.46 V
LTC1174-5/LTC1174V-5
4.75 5.00 5.25 V
V
OUT
Output Voltage Line Regulation V
IN
= 6V to 12V, I
LOAD
= 100mA, I
PGM
= V
IN
(Note 3) 10 70 mV
ELECTRICAL CHARACTERISTICS