Datasheet

LT1963A Series
10
1963aff
For more information www.linear.com/LT1963A
Typical perForMance characTerisTics
TEMPERATURE (°C)
–50
7
6
5
4
3
2
1
0
25 75
1963A G25
–25 0
50 100 125
SHDN PIN INPUT CURRENT (µA)
V
SHDN
= 20V
TEMPERATURE (°C)
–50
ADJ PIN BIAS CURRENT (µA)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
50
75
1963A G26
–25
25
100
125
ADJ Pin Bias Current
SHDN PIN VOLTAGE (V)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
SHDN PIN INPUT CURRENT (µA)
1963A G24
0 2 4 6
8
10
12 14 16 18 20
INPUT/OUTPUT DIFFERENTIAL (V)
0 2 6 10 14 18
CURRENT LIMIT (A)
3.0
2.5
2.0
1.5
1.0
0.5
0
4 8 12 16
1963A G27
20
T
J
= 125°C
T
J
= 25°C
T
J
= –50°C
ΔV
OUT
= 100mV
Current Limit
Current Limit
TEMPERATURE (°C)
–50
CURRENT LIMIT (A)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
50
75
1963A G28
–25
25
100
125
V
IN
= 7V
V
OUT
= 0V
OUTPUT VOLTAGE (V)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
REVERSE OUTPUT CURRENT (mA)
1963A G29
0 1 2 3
4
5
6 7 8 9 10
LT1963A
LT1963A-1.5
LT1963A-3.3
T
J
= 25°C
V
IN
= 0V
CURRENT FLOWS INTO
OUTPUT PIN
V
OUT
= V
ADJ
(LT1963A)
V
OUT
= V
FB
(LT1963A-1.5/1.8/-2.5/-3.3)
LT1963A-2.5
LT1963A-1.8
TEMPERATURE (°C)
–50
REVERSE OUTPUT CURRENT (mA)
0
50
75
1963A G30
–25
25
100
125
LT1963A-1.8/-2.5/-3.3
LT1963A
V
IN
= 0V
V
OUT
= 1.21V (LT1963A)
V
OUT
= 1.5V (LT1963A-1.5)
V
OUT
= 1.8V (LT1963A-1.8)
V
OUT
= 2.5V (LT1963A-2.5)
V
OUT
= 3.3V (LT1963A-3.3)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Reverse Output Current
Reverse Output Current
SHDN Pin Input Current
SHDN Pin Input Current