LTC1174
LTC1174-3.3/LTC1174-5
W W U W
ABSOLUTE AXI U RATI GS
(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)
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
LTC1174................................................. VIN – 13.5V
LTC1174HV ............................................ VIN – 18.5V
U W
U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
TOP VIEW
V (V *)
OUT FB
1
2
3
4
8
7
6
5
SHUTDOWN
V
(V *)
OUT FB
1
2
3
4
SHUTDOWN
8
7
6
5
LB
I
LB
I
OUT
PGM
OUT
PGM
LB
IN
V
IN
LB
IN
GND
V
IN
GND
SW
SW
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
* ADJUSTABLE OUTPUT VERSION
* ADJUSTABLE OUTPUT VERSION
TJMAX = 125°C, θJA = 150°C/W
TJMAX = 125°C, θJA = 110°C/W
ORDER PART NUMBER
ORDER PART NUMBER
S8 PART MARKING
LTC1174CN8
LTC1174CS8
1174
LTC1174CN8-3.3
LTC1174CN8-5
LTC1174IN8
LTC1174CS8-3.3
LTC1174CS8-5
LTC1174IS8
117433
117450
1174I
LTC1174HVCN8
LTC1174HVCN8-3.3
LTC1174HVCN8-5
LTC1174HVCS8
LTC1174HVCS8-3.3
LTC1174HVCS8-5
LTC1174HVIS8
1174H
1174H3
1174H5
1174HI
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.
ELECTRICAL CHARACTERISTICS
The
●
denotes specifications which apply over the full operating
= V , I = 0V, unless otherwise noted.
temperature range, otherwise specifications are at T = 25°C. V = 9V, V
A
IN
SHUTDOWN
IN PGM
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
1
UNITS
µA
I
Feedback Current
LTC1174/LTC1174HV
LTC1174/LTC1174HV
FB
V
V
Feedback Voltage
●
1.20
1.25
1.30
V
FB
Regulated Output Voltage
LTC1174-3.3/LTC1174HV-3.3
LTC1174-5/LTC1174V-5
●
●
3.14
4.75
3.30
5.00
3.46
5.25
V
V
OUT
∆V
OUT
Output Voltage Line Regulation
V
= 6V to 12V, I
= 100mA, I
= V (Note 3)
10
70
mV
IN
LOAD
PGM
IN
1174fe
2