LT1963EST LINEAR [Linear Integrated Systems], LT1963EST Datasheet - Page 6

• Manufacturer Part Number: LT1963EST
• Description: 1.5A, Low Noise, Fast Transient Response LDO Regulators
• Manufacturer: LINEAR [Linear Integrated Systems]

LT1963 Series
TYPICAL PERFOR A CE CHARACTERISTICS
6
10
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
100
8
6
4
2
0
0
90
80
70
60
50
40
30
20
10
–50
0
LT1963 GND Pin Current
0
SHDN Pin Threshold (On-to-Off)
LT1963-3.3 GND Pin Current
0
I
L
1
= 1mA
–25
1
R
2
L
2
R
= 121, I
L
R
R
3
INPUT VOLTAGE (V)
0
= 12.1, I
TEMPERATURE ( C)
L
L
3
INPUT VOLTAGE (V)
= 4.33, I
= 6.6, I
R
4
L
R
L
25
4
= 10mA*
L
= 2.2, I
L
= 3.3, I
5
L
= 100mA*
L
5
= 500mA*
50
T
V
*FOR V
= 300mA*
J
SHDN
6
L
= 25 C
L
6
= 1.5A*
T
V
*FOR V
J
= 1A*
SHDN
7
= 25 C
75
= V
OUT
7
W
IN
= V
8
OUT
= 1.21V
8
100
IN
1963 G16
= 3.3V
9
1963 G22
1963 G19
9
U
10
125
10
100
100
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
–50
0
0
LT1963-1.8 GND Pin Current
LT1963 GND Pin Current
SHDN Pin Threshold (Off-to-On)
1
1
–25
2
2
R
R
R
L
L
0
R
TEMPERATURE ( C)
R
3
INPUT VOLTAGE (V)
L
= 2.42, I
3
INPUT VOLTAGE (V)
= 3.6, I
L
L
= 1.21, I
= 0.81, I
R
= 1.8, I
L
4
4
25
= 1.2, I
L
L
= 500mA*
5
5
I
L
= 500mA*
L
L
L
50
= 1A*
= 1A*
= 1.5A
T
V
*FOR V
= 1.5A*
L
T
V
*FOR V
6
J
SHDN
6
= 1.5A*
J
SHDN
= 25 C
I
= 25 C
L
75
7
7
= 1mA
= V
OUT
= V
OUT
IN
8
8
IN
= 1.21V
100
= 1.8V
1963 G23
1963 G17
1963 G20
9
9
125
10
10
100
100
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
0
0
GND Pin Current vs I
0
LT1963-2.5 GND Pin Current
SHDN Pin Input Current
V
IN
1
0.2
2
= V
OUT (NOMINAL)
2
4
0.4 0.6
R
R
SHDN PIN VOLTAGE (V)
L
OUTPUT CURRENT (A)
L
R
3
INPUT VOLTAGE (V)
6
= 5, I
L
= 1.67, I
= 2.5, I
4
8
L
= 500mA*
0.8
10 12 14 16 18 20
+1V
5
L
L
= 1.5A*
= 1A*
T
V
*FOR V
6
LOAD
1.0 1.2
J
SHDN
= 25 C
7
= V
OUT
8
IN
= 2.5V
1.4
1963 G21
1963 G18
1963 G24
9
1963fa
1.6
10