LT1129/LT1129-3.3/LT1129-5
W W U W
ABSOLUTE AXI U RATI GS
(Note 1)
Input Voltage ...................................................... ±30V*
Output Pin Reverse Current ................................. 10mA
Sense Pin Current................................................ 10mA
Adjust Pin Current ............................................... 10mA
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.
U
W
U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
FRONT VIEW
TOP VIEW
ORDER PART
NUMBER
5
4
3
2
1
V
IN
1
2
3
4
8
7
6
5
V
IN
OUTPUT
SENSE/
ADJ*
1
2
GND
GND
GND
GND
GND
GND
IN
20
19
18
17
16
15
14
13
12
11
GND
GND
GND
GND
GND
GND
OUT
SHDN
GND
TAB
LT1129CF-3.3
IS
GND
3
GND
GND
GND
SENSE/ADJ*
OUTPUT
4
NC
SHDN
5
S8 PACKAGE
8-LEAD PLASTIC SO
Q PACKAGE
5-LEAD PLASTIC DD
6
7
*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5
= ADJ FOR LT1129
*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5
= ADJ FOR LT1129
8
SHDN
GND
GND
SENSE
GND
GND
9
θJA ≈ 60°C/W
θ
JA ≈ 30°C/ W
10
ORDER PART
NUMBER
ORDER PART
NUMBER
PART
MARKING
F PACKAGE
20-LEAD PLASTIC TSSOP
LT1129CQ
LT1129CS8
1129
NOTE: ALL GROUND PINS ARE
INTERNALLY CONNECTED
LT1129CQ-3.3
LT1129CQ-5
LT1129IQ
LT1129CS8-3.3
LT1129CS8-5
LT1129IS8
11293
11295
1129I
1129I3
1129I5
θ
JA ≈ 40°C/ W
LT1129IQ-3.3
LT1129IQ-5
LT1129IS8-3.3
LT1129IS8-5
OBSOLETE PACKAGE
FRONT VIEW
FRONT VIEW
ORDER PART
NUMBER
ORDER PART
NUMBER
5
4
3
2
1
V
IN
3
2
1
OUTPUT
GND
SHDN
TAB
IS
GND
TAB
IS
GND
LT1129CST-3.3
LT1129CST-5
LT1129IST-3.3
LT1129IST-5
LT1129CT
GND
LT1129CT-3.3
LT1129CT-5
LT1129IT
SENSE/ADJ*
OUTPUT
V
IN
LT1129IT-3.3
LT1129IT-5
ST PACKAGE
3-LEAD PLASTIC SOT-223
T PACKAGE
5-LEAD PLASTIC TO-220
θJA ≈ 50°C/ W
*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5
= ADJ FOR LT1129
θ
JA ≈ 50°C/W
Consult factory for Military grade parts.
112935fc
2
Linear Systems [ Linear Systems ]
