2

LT1129/LT1129-3.3/LT1129-5

112935fc

OBSOLETE PACKAGE

*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5

= ADJ FOR LT1129

*PIN 2 = SENSE FOR LT1129-3.3/LT1129-5

= ADJ FOR LT1129

*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

Consult factory for Military grade parts.

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

(Note 1)

Q PACKAGE

5-LEAD PLASTIC DD

FRONT VIEW

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

GND

GND

SHDN

SENSE/

ADJ*

3

2

1

FRONT VIEW

TAB

IS

GND

ST PACKAGE

3-LEAD PLASTIC SOT-223

OUTPUT

GND

T PACKAGE

5-LEAD PLASTIC TO-220

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

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.

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