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
1
2
20 GND
19 GND
18 GND
17 GND
16 GND
15 GND
14 IN
GND
GND
GND
GND
GND
GND
OUT
FRONT VIEW
TOP VIEW
3
5
4
3
2
1
V
IN
4
1
2
3
4
8
7
6
5
V
IN
OUTPUT
SENSE/
ADJ*
SHDN
5
TAB
IS
GND
GND
GND
6
GND
GND
SENSE/ADJ*
OUTPUT
7
NC
SHDN
8
13 SHDN
12 GND
11 GND
SENSE
GND
GND
S8 PACKAGE
Q PACKAGE
5-LEAD PLASTIC DD
9
8-LEAD PLASTIC SO
10
*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5
= ADJ FOR LT1129
*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5
= ADJ FOR LT1129
F PACKAGE
20-LEAD PLASTIC TSSOP
θ = 60°C/W
JA
θ
JA
= 30°C/W
NOTE: ALL GROUND PINS ARE INTERNALLY CONNECTED
= 40°C/W
θ
JA
OBSOLETE PACKAGE
FRONT VIEW
FRONT VIEW
5
4
3
2
1
V
IN
3
2
1
OUTPUT
GND
SHDN
TAB
IS
GND
TAB
IS
GND
GND
SENSE/ADJ*
OUTPUT
V
IN
T PACKAGE
5-LEAD PLASTIC TO-220
ST PACKAGE
3-LEAD PLASTIC SOT-223
*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5 = ADJ FOR LT1129
= 50°C/W
θ
JA
= 50°C/W
θ
JA
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
1129
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
LT1129CS8#PBF
LT1129CS8#TRPBF
LT1129IS8#TRPBF
LT1129CS8-3.3#TRPBF
LT1129IS8-3.3#TRPBF
LT1129CS8-5#TRPBF
LT1129IS8#PBF
1129I
–40°C to 125°C
0°C to 125°C
LT1129CS8-3.3#PBF
LT1129IS8-3.3#PBF
LT1129CS8-5#PBF
11293
1129I3
–40°C to 125°C
0°C to 125°C
11295
112935ff
2
Linear [ Linear ]
