LT1963EST LINEAR [Linear Integrated Systems], LT1963EST Datasheet - Page 7
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LT1963EST
Manufacturer Part Number
LT1963EST
Description
1.5A, Low Noise, Fast Transient Response LDO Regulators
Manufacturer
LINEAR [Linear Integrated Systems]
Datasheet
1.LT1963EST.pdf
(16 pages)
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TYPICAL PERFOR A CE CHARACTERISTICS
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
7
6
5
4
3
2
1
0
0
–50
–50
SHDN Pin Input Current
Reverse Output Current
V
V
V
V
V
IN
OUT
OUT
OUT
OUT
–25
–25
= 0V
= 1.21V (LT1963)
= 1.8V (LT1963-1.8)
= 2.5V (LT1963-2.5)
= 3.3V (LT1963-3.3)
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
LT1963-1.8/-2.5/-3.3
25
25
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
50
–50
50
Current Limit
V
V
IN
OUT
LT1963
–25
75
= 7V
75
V
= 0V
W
SHDN
100
100
0
= 20V
TEMPERATURE ( C)
1963 G25
1963 G30
U
125
125
25
50
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
75
80
70
60
50
40
30
20
10
0
0
–50
10
Ripple Rejection
ADJ Pin Bias Current
I
V
L
100
IN
= 0.75A
= V
–25
1963 G28
100
OUT(NOMINAL)
C
125
OUT
0
TEMPERATURE ( C)
= 100 F TANTALUM
+10 1 F CERAMIC
FREQUENCY (Hz)
1k
25
C
OUT
+1V + 50mV
50
= 10 F TANTALUM
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
10k
0
0
Reverse Output Current
75
1
RMS
100k
LT1963
100
2
RIPPLE
1963 G26
1963 G31
OUTPUT VOLTAGE (V)
3
125
1M
4
LT1963-1.8
5
6
LT1963-2.5
3.0
2.5
2.0
1.5
1.0
0.5
76
74
72
70
68
66
64
62
0
7
– 50
LT1963-3.3
0
Current Limit
Ripple Rejection
I
V
RIPPLE AT f = 120Hz
L
IN
8
= 0.75A
– 25
2
V
= V
OUT
INPUT/OUTPUT DIFFERENTIAL (V)
1963 G29
9
OUT(NOMINAL)
4
= 100mV
T
LT1963 Series
T
10
J
J
0
= 125 C
TEMPERATURE ( C)
6
T
V
CURRENT FLOWS INTO
OUTPUT PIN
V
V
= 25 C
J
IN
OUT
OUT
= 25 C
= 0V
8
25
= V
= V
+1V + 0.5V
10
ADJ
FB
50
(LT1963-1.8/-2.5/-3.3)
12
(LT1963)
T
14
75
J
P-P
= – 50 C
16
100
18
1963 G32
1963 G27
1963fa
7
125
20