5

LTC1177-5/LTC1177-12

LTC1177-12

Output Voltage vs Temperature

LTC1177-12

Input Current vs Temperature

TEMPERATURE (

°C)

–55

3.0

2.8

2.6

2.4

2.2

2.0

1.8

1.6

25

75

1177-12 G14

–25

0

50

100

125

NO LOAD

N18

SW28

TEMPERATURE (

°C)

–55

6.4

6.2

6.0

5.8

5.6

5.4

5.2

5.0

25

75

1177-12 G13

–25

0

50

100

125

N18

SW28

NO LOAD

LTC1177-12

Output Voltage vs Input Voltage

INPUT VOLTAGE (V)

9

8

7

6

5

4

3

10

11

12

13

1177-12 G15

14

N18

15

SW28

LTC1177-12

Input Current vs Input Voltage

INPUT VOLTAGE (V)

9

3.4

3.0

2.6

2.2

1.8

1.4

10

11

N18

SW28

12

13

1177-12 G16

14

15

SENSE: Current Limit Sense Input. Connecting a 1

Ω resis-

tor from the Sense pin to GND2 limits the current through

GND2: Floating Ground Connects to the source of the

external N-channel MOSFET.

GND1: Input Ground. The ground connection of the input

control signal.

12.6V

OUT: Output Voltage. The output voltage level is 8V (typ)

for SW package and 7.5V (typ) for N package (LTC1177-

pin is to drive the gate of the external N-channel MOSFET.