Datasheet

5
LT1963 Series
1963fc
OUTPUT CURRENT (A)
0
DROPOUT VOLTAGE (mV)
500
450
400
350
300
250
200
150
100
50
0
0.4
0.8
1.0
1963 • G01
0.2 0.6
1.2
1.4
1.6
T
J
= 125°C
T
J
= 25°C
TEMPERATURE (°C)
–50
OUTPUT VOLTAGE (V)
100
1963 G07
050
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
–25 25 75 125
I
L
= 1mA
TEMPERATURE (°C)
–50
ADJ PIN VOLTAGE (V)
100
1963 G08
050
1.230
1.225
1.220
1.215
1.210
1.205
1.200
1.195
1.190
–25 25 75 125
I
L
= 1mA
TYPICAL PERFOR A CE CHARACTERISTICS
UW
LT1963-3.3 Output Voltage
LT1963 ADJ Pin Voltage
TEMPERATURE (°C)
–50
OUTPUT VOLTAGE (V)
100
1963 G06
050
2.58
2.56
2.54
2.52
2.50
2.48
2.46
2.44
2.42
–25 25 75 125
I
L
= 1mA
LT1963-2.5 Output Voltage
OUTPUT CURRENT (A)
GUARANTEED DROPOUT VOLTAGE (mV)
600
500
400
300
200
100
0
0
0.4
0.8
1.0
1963 • G02
0.2 0.6
1.2
1.4
1.6
T
J
≤ 125°C
T
J
≤ 25°C
TEST POINTS
TEMPERATURE (°C)
–50
DROPOUT VOLTAGE (mV)
500
450
400
350
300
250
200
150
100
50
0
0
50
75
1963 G03
–25
25
100
125
I
L
= 100mA
I
L
= 1mA
I
L
= 0.5A
I
L
= 1.5A
TEMPERATURE (°C)
–50
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
25 75
1963 G04
–25 0
50 100 125
QUIESCENT CURRENT (mA)
LT1963-1.5/-1.8/-2.5/-3.3
LT1963
V
IN
= 6V
R
L
= ∞, I
L
= 0
V
SHDN
= V
IN
TEMPERATURE (°C)
–50
OUTPUT VOLTAGE (V)
100
1963 G05
050
1.84
1.83
1.82
1.81
1.80
1.79
1.78
1.77
1.76
–25 25 75 125
I
L
= 1mA
Typical Dropout Voltage Guaranteed Dropout Voltage
Dropout Voltage
Quiescent Current LT1963-1.8 Output Voltage
TEMPERATURE (°C)
–50
OUTPUT VOLTAGE (V)
100
1963 G04i
050
1.54
1.53
1.52
1.51
1.50
1.49
1.48
1.47
1.46
–25 25 75 125
I
L
= 1mA
LT1963-1.5 Output Voltage