LT1129/LT1129-3.3/LT1129-5
ABSOLUTE MAXIMUM RATINGS
(Note 1)
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 3)
LT1129C-X .......................................... 0°C to 125°C
LT1129C-X Extended Temperature Range
(Note 12) ....................................... –40°C to 125°C
LT1129I-X(Note 12) ......................... –40°C to 125°C
LT1129MP-X(Note 12) ..................... –55°C to 125°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
* For applications requiring input voltage ratings greater than 30V, contact the factory.
PIN CONFIGURATION
TOP VIEW
GND
GND
GND
GND
GND
GND
OUT
SENSE
GND
1
2
3
4
5
6
7
8
9
20 GND
19 GND
18 GND
17 GND
16 GND
15 GND
14 IN
13
SHDN
12 GND
11 GND
TAB
IS
GND
FRONT VIEW
5
4
3
2
1
Q PACKAGE
5-LEAD PLASTIC DD
V
IN
SHDN
GND
SENSE/ADJ*
OUTPUT
OUTPUT 1
SENSE/ 2
ADJ*
GND 3
NC 4
TOP VIEW
8 V
IN
7 GND
6 GND
5
SHDN
S8 PACKAGE
8-LEAD PLASTIC SO
GND 10
F PACKAGE
20-LEAD PLASTIC TSSOP
*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5
= ADJ FOR LT1129
θ
JA
= 30°C/W
*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5
= ADJ FOR LT1129
θ
JA
= 60°C/W
NOTE: ALL GROUND PINS ARE INTERNALLY CONNECTED
θ
JA
= 40°C/W
OBSOLETE PACKAGE
FRONT VIEW
3
TAB
IS
GND
2
1
OUTPUT
GND
V
IN
TAB
IS
GND
FRONT VIEW
5
4
3
2
1
T PACKAGE
5-LEAD PLASTIC TO-220
V
IN
SHDN
GND
SENSE/ADJ*
OUTPUT
ST PACKAGE
3-LEAD PLASTIC SOT-223
θ
JA
= 50°C/W
*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5 = ADJ FOR LT1129
θ
JA
= 50°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
1129
1129I
11293
1129I3
11295
PACKAGE DESCRIPTION
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
TEMPERATURE RANGE
0°C to 125°C
–40°C to 125°C
0°C to 125°C
–40°C to 125°C
0°C to 125°C
112935ff
2
LINER [ LINEAR TECHNOLOGY ]
