Datasheet

2
LT1129/LT1129-3.3/LT1129-5
112935fd
OBSOLETE PACKAGE
*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5
= ADJ FOR LT1129
θ
JA
≈ 50°C/W
θ
JA
≈ 50°C/ W
*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5
= ADJ FOR LT1129
θ
JA
≈ 30°C/ W
θ
JA
≈ 60°C/W
*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5
= ADJ FOR LT1129
ORDER PART
NUMBER
PART
MARKING
LT1129CST-3.3
LT1129CST-5
LT1129IST-3.3
LT1129IST-5
LT1129CT
LT1129CT-3.3
LT1129CT-5
LT1129IT
LT1129IT-3.3
LT1129IT-5
LT1129CQ
LT1129CQ-3.3
LT1129CQ-5
LT1129IQ
LT1129IQ-3.3
LT1129IQ-5
1129
11293
11295
1129I
1129I3
1129I5
ORDER PART
NUMBER
ORDER PART
NUMBER
LT1129CS8
LT1129CS8-3.3
LT1129CS8-5
LT1129IS8
LT1129IS8-3.3
LT1129IS8-5
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
(Note 1)
Q PACKAGE
5-LEAD PLASTIC DD
FRONT VIEW
V
IN
SHDN
GND
SENSE/ADJ*
OUTPUT
5
4
3
2
1
TAB
IS
GND
1
2
3
4
8
7
6
5
TOP VIEW
OUTPUT
GND
NC
S8 PACKAGE
8-LEAD PLASTIC SO
V
IN
GND
GND
SHDN
SENSE/
ADJ*
3
2
1
FRONT VIEW
TAB
IS
GND
ST PACKAGE
3-LEAD PLASTIC SOT-223
OUTPUT
GND
V
IN
T PACKAGE
5-LEAD PLASTIC TO-220
V
IN
SHDN
GND
SENSE/ADJ*
OUTPUT
FRONT VIEW
5
4
3
2
1
TAB
IS
GND
ORDER PART
NUMBER
LT1129CF-3.3
NOTE: ALL GROUND PINS ARE
INTERNALLY CONNECTED
θ
JA
≈ 40°C/ W
Input Voltage ...................................................... ±30V*
Output Pin Reverse Current ................................. 10mA
Sense Pin Current ................................................ 10mA
Adjust Pin Current ............................................... 10mA
Sense Pin, Adjust Pin Reverse Voltage ................ – 0.6V
Shutdown Pin Input Voltage (Note 2) ........ 6.5V, – 0.6V
Shutdown Pin Input Current (Note 2) .................. 20mA
Output Short-Circuit Duration ......................... Indefinite
Storage Temperature Range ................ – 65°C to 150°C
Operating Junction Temperature Range (Note 2)
LT1129C-X ......................................... 0°C to 125°C
LT1129C-X Extended Temperature Range
(Note 12) ........................................ –40°C to 125°C
LT1129I-X ...................................... –40°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
* For applications requiring input voltage ratings greater than 30V, contact the factory.
ORDER PART
NUMBER
1
2
3
4
5
6
7
8
9
10
TOP VIEW
F PACKAGE
20-LEAD PLASTIC TSSOP
20
19
18
17
16
15
14
13
12
11
GND
GND
GND
GND
GND
GND
OUT
SENSE
GND
GND
GND
GND
GND
GND
GND
GND
IN
SHDN
GND
GND
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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/