lt1764aeq-trpbf Linear Technology Corporation, lt1764aeq-trpbf Datasheet - Page 7

• Manufacturer Part Number: lt1764aeq-trpbf
• Description: 3a, Fast Transient Response, Low Noise, Ldo Regulators
• Manufacturer: Linear Technology Corporation

TYPICAL PERFOR A CE CHARACTERISTICS
200
160
120
160
140
120
100
40
80
80
60
40
20
10
0
0
9
8
7
6
5
4
3
2
1
0
0
0
GND Pin Current vs I
LT1764A-2.5 GND Pin Current
0
SHDN Pin Input Current
V
IN
1
2
= V
0.5
OUT(NOM)
2
4
SHDN PIN VOLTAGE (V)
OUTPUT CURRENT (A)
3
INPUT VOLTAGE (V)
6
1.0
R
I
L
L
= 1.5A*
4
+ 1V
= 1.66Ω
8
1.5
10
5
R
L
I
L
T
V
*FOR V
12
6
LOAD
= 0.83Ω
J
SHDN
= 3A*
2.0
= 25°C
R
I
14
7
L
L
= 0.7A*
= V
OUT
W
= 3.57Ω
16
8
2.5
IN
= 2.5V
1764 G18
1764 G21
18
9
1764 G24
U
3.0
10
20
200
160
120
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
80
40
10
0
0
9
8
7
6
5
4
3
2
1
0
–50
–50
0
SHDN Pin Input Current
LT1764A-3.3 GND Pin Current
SHDN Pin Threshold
(On-to-Off)
V
I
L
SHDN
1
= 1mA
–25
–25
= 20V
2
0
0
3
INPUT VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
4
R
I
25
25
L
L
R
= 1.5A*
I
= 2.2Ω
L
L
5
= 1.1Ω
= 3A*
50
50
T
V
*FOR V
6
J
SHDN
= 25°C
7
75
75
R
I
= V
OUT
L
L
= 0.7A*
8
= 4.71Ω
IN
100
100
= 3.3V
9
1764 G19
1764 G25
1764 G22
125
125
10
150
120
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
30
90
60
0
0
0
– 50
–50
LT1764A GND Pin Current
0
ADJ Pin Bias Current
SHDN Pin Threshold
(Off-to-On)
1
– 25
LT1764A Series
–25
2
R
I
0
0
L
3
L
INPUT VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
= 1.5A*
= 0.81Ω
I
R
L
I
I
L
L
L
= 1mA
4
25
= 0.4Ω
= 3A
= 3A*
25
5
50
50
T
V
*FOR V
J
6
SHDN
= 25°C
7
75
75
R
I
= V
L
OUT
L
= 0.7A*
= 1.73Ω
IN
8
= 1.21V
100
100
1764afb
1764 G20
9
1764 G23
1756 G26
7
125
125
10