Datasheet

LT1763 Series
10
1763fg
TYPICAL PERFORMANCE CHARACTERISTICS
LT1763-2.5
GND Pin Current
LT1763-3
GND Pin Current
LT1763-3.3
GND Pin Current
INPUT VOLTAGE (V)
12
10
8
6
4
2
0
GND PIN CURRENT (mA)
1763 G28
0123
4
5
678910
R
L
= 5Ω
I
L
= 500mA*
R
L
= 8.33Ω
I
L
= 300mA*
R
L
= 25Ω
I
L
= 100mA*
T
J
= 25°C
V
IN
= V
SHDN
*FOR V
OUT
= 2.5V
INPUT VOLTAGE (V)
12
10
8
6
4
2
0
GND PIN CURRENT (mA)
1763 G29
0123
4
5
678910
R
L
= 6Ω
I
L
= 500mA*
R
L
= 10Ω
I
L
= 300mA*
R
L
= 30Ω
I
L
= 100mA*
T
J
= 25°C
V
IN
= V
SHDN
*FOR V
OUT
= 3V
INPUT VOLTAGE (V)
12
10
8
6
4
2
0
GND PIN CURRENT (mA)
1763 G30
0123
4
5
678910
R
L
= 6.6Ω
I
L
= 500mA*
R
L
= 11Ω
I
L
= 300mA*
R
L
= 33Ω
I
L
= 100mA*
T
J
= 25°C
V
IN
= V
SHDN
*FOR V
OUT
= 3.3V
SHDN Pin Threshold
(On-to-Off)
SHDN Pin Threshold
(Off-to-On) SHDN Pin Input Current
TEMPERATURE (°C)
–50
SHDN PIN THRESHOLD (V)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
50
75
1763 G34
–25
25
100
125
I
L
= 1mA
TEMPERATURE (°C)
–50
SHDN PIN THRESHOLD (V)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
50
75
1763 G35
–25
25
100
125
I
L
= 500mA
I
L
= 1mA
SHDN PIN VOLTAGE (V)
SHDN PIN INPUT CURRENT (μA)
1763 G36
0123
4
5
678910
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
LT1763-5
GND Pin Current
LT1763
GND Pin Current
GND Pin Current vs I
LOAD
INPUT VOLTAGE (V)
12
10
8
6
4
2
0
GND PIN CURRENT (mA)
1763 G31
0123
4
5
678910
R
L
= 10Ω
I
L
= 500mA*
R
L
= 16.7Ω
I
L
= 300mA*
R
L
= 50Ω
I
L
= 100mA*
T
J
= 25°C
V
IN
= V
SHDN
*FOR V
OUT
= 5V
INPUT VOLTAGE (V)
12
10
8
6
4
2
0
GND PIN CURRENT (mA)
1763 G32
0123
4
5
678910
R
L
= 2.44Ω
I
L
= 500mA*
R
L
= 4.07Ω
I
L
= 300mA*
R
L
= 12.2Ω
I
L
= 100mA*
T
J
= 25°C
V
IN
= V
SHDN
*FOR V
OUT
= 1.22V
OUTPUT CURRENT (mA)
12
10
8
6
4
2
0
GND PIN CURRENT (mA)
1763 G33
0 50 100 150
200
250
300 350 400 450 500
V
IN
= V
OUT(NOMINAL)
+ 1V