LT1963A Series
ELECTRICAL CHARACTERISTICS
The
●
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
A
= 25∞C. (Note 2)
PARAMETER
Minimum Input Voltage (Notes 4,12)
Regulated Output Voltage (Note 5)
CONDITIONS
I
LOAD
= 0.5A
I
LOAD
= 1.5A
LT1963A-1.5
LT1963A-1.8
LT1963A-2.5
LT1963A-3.3
ADJ Pin Voltage
(Notes 4, 5)
Line Regulation
LT1963A
LT1963A-1.5
LT1963A-1.8
LT1963A-2.5
LT1963A-3.3
LT1963A (Note 4)
LT1963A-1.5
LT1963A-1.8
LT1963A-2.5
LT1963A-3.3
V
IN
= 2.21V, I
LOAD
= 1mA
2.5V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A
V
IN
= 2.3V, I
LOAD
= 1mA
2.8V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A
V
IN
= 3V, I
LOAD
= 1mA
3.5V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A
V
IN
= 3.8V, I
LOAD
= 1mA
4.3V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A
V
IN
= 2.21V, I
LOAD
= 1mA
2.5V < V
IN
< 20V, 1mA < I
LOAD
< 1.5A
DV
IN
= 2.21V to 20V, I
LOAD
= 1mA
DV
IN
= 2.3V to 20V, I
LOAD
= 1mA
DV
IN
= 3V to 20V, I
LOAD
= 1mA
DV
IN
= 3.8V to 20V, I
LOAD
= 1mA
DV
IN
= 2.21V to 20V, I
LOAD
= 1mA
V
IN
= 2.5V,
DI
LOAD
= 1mA to 1.5A
V
IN
= 2.5V,
DI
LOAD
= 1mA to 1.5A
V
IN
= 2.8V,
DI
LOAD
= 1mA to 1.5A
V
IN
= 2.8V,
DI
LOAD
= 1mA to 1.5A
V
IN
= 3.5V,
DI
LOAD
= 1mA to 1.5A
V
IN
= 3.5V,
DI
LOAD
= 1mA to 1.5A
V
IN
= 4.3V,
DI
LOAD
= 1mA to 1.5A
V
IN
= 4.3V,
DI
LOAD
= 1mA to 1.5A
●
●
●
●
●
●
●
●
●
●
●
●
MIN
TYP
1.9
2.1
MAX
2.5
1.523
1.545
1.827
1.854
2.538
2.575
3.350
3.400
1.228
1.246
6
7
10
10
5
9
18
10
20
15
30
20
35
8
15
0.06
0.10
0.17
0.22
0.27
0.35
0.45
0.55
1.5
1.6
5.5
25
120
10
2
1
30
1
UNITS
V
V
V
V
V
V
V
V
V
V
V
V
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
V
V
V
V
V
V
V
V
mA
mA
mA
mA
mA
mV
RMS
mA
V
V
mA
mA
dB
A
A
1963af
1.477
1.447
1.773
1.737
2.462
2.412
3.250
3.200
1.192
1.174
1.500
1.500
1.800
1.800
2.500
2.500
3.300
3.300
1.210
1.210
2.0
2.5
3.0
3.5
1.5
2
2
Load Regulation
●
2.5
●
3
●
LT1963A (Note 4) V
IN
= 2.5V,
DI
LOAD
= 1mA to 1.5A
V
IN
= 2.5V,
DI
LOAD
= 1mA to 1.5A
Dropout Voltage
V
IN
= V
OUT(NOMINAL)
(Notes 6, 7, 12)
I
LOAD
= 1mA
I
LOAD
= 1mA
I
LOAD
= 100mA
I
LOAD
= 100mA
I
LOAD
= 500mA
I
LOAD
= 500mA
I
LOAD
= 1.5A
I
LOAD
= 1.5A
GND Pin Current
V
IN
= V
OUT(NOMINAL)
+ 1V
(Notes 6, 8)
I
LOAD
= 0mA
I
LOAD
= 1mA
I
LOAD
= 100mA
I
LOAD
= 500mA
I
LOAD
= 1.5A
C
OUT
= 10mF, I
LOAD
= 1.5A, BW = 10Hz to 100kHz
(Notes 4, 9)
V
OUT
= Off to On
V
OUT
= On to Off
V
SHDN
= 0V
V
SHDN
= 20V
V
IN
= 6V, V
SHDN
= 0V
V
IN
– V
OUT
= 1.5V (Avg), V
RIPPLE
= 0.5V
P-P
,
f
RIPPLE
= 120Hz, I
LOAD
= 0.75A
V
IN
= 7V, V
OUT
= 0V
V
IN
= V
OUT(NOMINAL)
+ 1V,
DV
OUT
= – 0.1V
2
●
0.02
●
0.10
●
0.19
●
0.34
●
●
●
●
●
●
1.0
1.1
3.8
15
80
40
3
Output Voltage Noise
ADJ Pin Bias Current
Shutdown Threshold
SHDN Pin Current
(Note 10)
Quiescent Current in Shutdown
Ripple Rejection
Current Limit
●
●
0.25
0.90
0.75
0.01
3
0.01
mA
55
63
2
●
1.6
3
LINER [ LINEAR TECHNOLOGY ]
