LT1963A Series
Typical perForMance characTerisTics
LT1963A GND Pin Current
LT1963A-1.5 GND Pin Current
LT1963A-1.8 GND Pin Current
100
90
80
70
60
50
40
30
20
10
0
10
8
100
90
80
70
60
50
40
30
20
10
0
T = 25°C
J
T = 25°C
J
T = 25°C
J
V
= V
IN
V
= V
IN
OUT
SHDN
V
= V
SHDN
SHDN
IN
*FOR V
= 1.5V
*FOR V
= 1.8V
*FOR V
= 1.21V
OUT
OUT
R
= 4.33, I = 300mA*
L
L
R
= 1.2, I = 1.5A*
L
6
L
R
L
= 1, I = 1.5A*
L
R
= 1.5, I = 1A*
L
L
4
R
L
= 1.8, I = 1A*
L
R
L
= 12.1, I = 100mA*
L
R
L
= 3, I = 500mA*
L
2
R
L
= 3.6, I = 500mA*
L
R
L
= 121, I = 10mA*
L
0
4
0
1
2
3
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9 10
0
1
2
3
4
5
6
7
8
9
10
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
1963A G17
1963A G16
1963A G43
LT1963A-2.5 GND Pin Current
LT1963A GND Pin Current
LT1963A-3.3 GND Pin Current
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
T = 25°C
J
T = 25°C
J
T = 25°C
J
V
= V
IN
V
= V
SHDN
V
= V
IN
SHDN
IN
SHDN
*FOR V
= 3.3V
*FOR V
= 1.21V
OUT
*FOR V
= 2.5V
OUT
OUT
R
L
= 2.2, I = 1.5A*
L
R
L
= 1.67, I = 1.5A*
L
R
L
= 0.81, I = 1.5A*
L
R
L
= 2.5, I = 1A*
L
R
L
= 3.3, I = 1A*
L
R
L
= 1.21, I = 1A*
L
R
L
= 5, I = 500mA*
L
R
L
= 6.6, I = 500mA*
L
R
L
= 2.42, I = 500mA*
L
4
0
1
2
3
4
6
7
8
9
10
4
0
1
2
3
5
6
7
8
9
10
5
0
1
2
3
6
7
8
9
10
5
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
1963A G18
1963A G19
1963A G20
GND Pin Current vs ILOAD
SHDN Pin Threshold (Off-to-On)
SHDN Pin Threshold (On-to-Off)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
100
90
80
70
60
50
40
30
20
10
0
I
= 1mA
V
IN
= V
+1V
L
OUT (NOMINAL)
I
= 1.5A
L
I
= 1mA
L
–50
0
25
50
75 100 125
–50
0
25
50
75 100 125
–25
–25
0.8
OUTPUT CURRENT (A)
0
0.2 0.4 0.6
1.0 1.2 1.4 1.6
TEMPERATURE (°C)
TEMPERATURE (°C)
1963A G22
1963A G23
1963A G21
1963aff
9
For more information www.linear.com/LT1963A
Linear [ Linear ]
