LT1965 Series
typical perForMance characteristics
LT1965-2.5 GND Pin Current
(Light Load)
LT1965-2.5 GND Pin Current
(Heavy Load)
LT1965-3.3 GND Pin Current
(Light Load)
25
20
15
10
5
12
10
8
12
10
8
T = 25°C
SHDN
T = 25°C
SHDN
T = 25°C
SHDN
J
J
J
V
= V
V
= V
V
= V
IN
IN
IN
*FOR V
= 2.5V
*FOR V
= 2.5V
*FOR V
= 3.3V
OUT
OUT
OUT
R = 2.272Ω, I = 1.1A*
L
L
6
6
R = 5Ω, I = 500mA*
L
L
R = 330Ω, I = 10mA*
4
4
L
L
R = 250Ω, I = 10mA*
L
L
R = 2.5k, I = 1mA*
R = 3.3k, I = 1mA*
L L
L
L
R = 50Ω, I = 50mA*
R = 66Ω, I = 50mA*
2
2
L
L
L
L
R = 25Ω, I = 100mA*
L
L
0
0
0
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
1965 G20
1965 G21
1965 G19
LT1965-3.3 GND Pin Current
(Heavy Load)
LT1965 GND Pin Current
(Light Load)
LT1965 GND Pin Current
(Heavy Load)
25
20
15
10
5
25
20
15
10
5
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
T = 25°C
SHDN
T = 25°C
J
SHDN
T = 25°C
J
J
V
= V
V
= V
V
= V
IN
= 1.2V
IN
= 1.2V
SHDN
OUT
IN
*FOR V
= 3.3V
*FOR V
*FOR V
OUT
OUT
R
= 24Ω, I = 50mA*
L
L
R = 3Ω, I = 1.1A*
L
L
R
= 1.091Ω, I = 1.1A*
L
L
R
R
= 120Ω, I = 10mA*
L
L
R = 6.6Ω, I = 500mA*
L
L
R
= 2.4Ω, I = 500mA*
L
L
= 1.2k, I = 1mA*
L
L
R = 33Ω, I = 100mA*
L
L
R = 12Ω, I = 100mA*
L L
0
0
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
1965 G23
1965 G24
1965 G22
GND Pin Current vs ILOAD
SHDN Pin Threshold
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.50
5.00
2.50
0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
V
= V
+ 1V
OUT(NOMINAL)
IN
OFF TO ON
ON TO OFF
0
0.2
0.6
0.8
1.0
1.2
0.4
–50 –25
0
25 50 75 100 125 150
LOAD CURRENT (A)
TEMPERATURE (°C)
1965 G26
1965 G25
1965fb
8
For more information www.linear.com/LT1965
Linear Systems [ Linear Systems ]
