LT1965
TYPICAL PERFORMANCE CHARACTERISTICS
GND Pin Current
GND Pin Current
GND Pin Current vs ILOAD
25.0
22.5
20.0
17.5
15.0
12.5
10.0
7.50
5.00
2.50
0
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
V
= V
+ 1V
OUT(NOMINAL)
T
= 25°C
SHDN
T
= 25°C
SHDN
IN
J
V
J
= V
V
= V
IN
= 1.2V
IN
*FOR V
*FOR V
= 1.2V
OUT
OUT
R
= 24Ω, I = 50mA*
L
L
R
= 1.091Ω, I = 1.1A*
L
L
R
R
= 120Ω, I = 10mA*
L
L
L
R
= 2.4Ω, I = 500mA*
L
L
= 1.2k, I = 1mA*
L
R
= 12Ω, I = 100mA*
L
L
0
0
0.2
0.6
0.8
1.0
1.2
0
1
2
3
4
5
6
7
8
9
10
0.4
0
1
2
3
4
5
6
7
8
9
10
LOAD CURRENT (A)
INPUT VOLTAGE (V)
INPUT VOLTAGE (V)
1965 G09
1965 G08
1965 G07
SHDN Pin Threshold
SHDN Pin Input Current
SHDN Pin Input Current
6
5
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
6.0
5.9
5.8
5.7
5.6
5.5
5.4
5.3
5.2
5.1
5.0
V
= 20V
SHDN
OFF TO ON
4
3
ON TO OFF
2
1
0
0
2
4
6
8
10 12 14 16 18 20
–50 –25
0
25
50
75 100 125
–50 –25
0
25
50
75 100 125
SHDN PIN VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
1965 G11
1965 G10
1965 G12
ADJ Pin Bias Current
Current Limit vs VIN–VOUT
Current Limit vs Temperature
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
2.5
2.0
1.5
1.0
0.5
0
3.0
2.5
2.0
1.5
1.0
0.5
0
V
V
= 7V
ΔV
= –100mV
IN
OUT
OUT
= 0V
T
= –50°C
J
T
= 125°C
J
T
= 25°C
J
0
2
4
6
8
10 12 14 16 18 20
–50 –25
0
25
50
75 100 125
–50 –25
0
25
50
75 100 125
TEMPERATURE (°C)
INPUT/OUTPUT DIFFERENTIAL (V)
TEMPERATURE (°C)
1965 G13
1965 G14
1965 G15
1965f
5
Linear [ Linear ]
