Datasheet

LT1963A Series
9
1963aff
For more information www.linear.com/LT1963A
Typical perForMance characTerisTics
INPUT VOLTAGE (V)
0
GND PIN CURRENT (mA)
10
8
6
4
2
0
4
1963A G16
1
2
3
1098765
R
L
= 121, I
L
= 10mA*
R
L
= 12.1, I
L
= 100mA*
R
L
= 4.33, I
L
= 300mA*
T
J
= 25°C
V
SHDN
= V
IN
*FOR V
OUT
= 1.21V
LT1963A GND Pin Current
INPUT VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
0
GND PIN CURRENT (mA)
1963A G17
0 1 2 3
4
5
6 7 8 9 10
R
L
= 1.8, I
L
= 1A*
R
L
= 1.2, I
L
= 1.5A*
R
L
= 3.6, I
L
= 500mA*
T
J
= 25°C
V
SHDN
= V
IN
*FOR V
OUT
= 1.8V
LT1963A-1.8 GND Pin CurrentLT1963A-1.5 GND Pin Current
INPUT VOLTAGE (V)
0
GND PIN CURRENT (mA)
60
80
100
8
1963A G43
40
20
50
70
90
30
10
0
21
43
6 7 9
5
10
T
J
= 25°C
V
SHDN
= V
IN
*FOR V
OUT
= 1.5V
R
L
= 1, I
L
= 1.5A*
R
L
= 1.5, I
L
= 1A*
R
L
= 3, I
L
= 500mA*
INPUT VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
0
GND PIN CURRENT (mA)
1963A G18
0 1 2 3
4
5
6 7 8 9 10
R
L
= 2.5, I
L
= 1A*
R
L
= 1.67, I
L
= 1.5A*
R
L
= 5, I
L
= 500mA*
T
J
= 25°C
V
SHDN
= V
IN
*FOR V
OUT
= 2.5V
INPUT VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
0
GND PIN CURRENT (mA)
1963A G19
0 1 2 3
4
5
6 7 8 9 10
R
L
= 3.3, I
L
= 1A*
R
L
= 2.2, I
L
= 1.5A*
R
L
= 6.6, I
L
= 500mA*
T
J
= 25°C
V
SHDN
= V
IN
*FOR V
OUT
= 3.3V
INPUT VOLTAGE (V)
100
90
80
70
60
50
40
30
20
10
0
GND PIN CURRENT (mA)
1963A G20
0 1 2 3
4
5
6 7 8 9 10
R
L
= 1.21, I
L
= 1A*
R
L
= 0.81, I
L
= 1.5A*
R
L
= 2.42, I
L
= 500mA*
T
J
= 25°C
V
SHDN
= V
IN
*FOR V
OUT
= 1.21V
LT1963A-2.5 GND Pin Current
LT1963A-3.3 GND Pin Current
LT1963A GND Pin Current
OUTPUT CURRENT (A)
100
90
80
70
60
50
40
30
20
10
0
GND PIN CURRENT (mA)
1963A G21
0 0.2 0.4 0.6
0.8
1.0
1.2 1.4 1.6
V
IN
= V
OUT (NOMINAL)
+1V
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
1963A G23
–25
25
100
125
I
L
= 1mA
I
L
= 1.5A
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
1963A G22
–25
25
100
125
I
L
= 1mA
GND Pin Current vs I
LOAD
SHDN Pin Threshold (On-to-Off)
SHDN Pin Threshold (Off-to-On)