LT1965
ELECTRICAL CHARACTERISTICS
Note 9: ADJ pin bias current flows into the ADJ pin.
Note 10: SHDN pin current flows into the SHDN pin.
Note 13: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Note 11: Reverse output current is tested with the IN pin grounded and the
OUT pin forced to the rated output voltage. This current flows into the OUT
pin and out of the GND pin.
Note 12: For the LT1965, the minimum input voltage specification limits
the dropout voltage under some output voltage/load conditions.
TYPICAL PERFORMANCE CHARACTERISTICS
Typical Dropout Voltage
Guaranteed Dropout Voltage
Dropout Voltage
500
450
400
350
300
250
200
150
100
50
500
450
400
350
300
250
200
150
100
50
500
450
400
350
300
250
200
150
100
50
= TEST POINTS
T
= 125°C
= 25°C
J
I
= 1.1A
L
T
= 125°C
= 25°C
J
T
J
I
I
= 500mA
= 100mA
L
T
J
L
I
= 1mA
L
0
0
0
–50 –25
0
25
50
75 100 125
0
0.2
0.6
0.8
1
1.2
0
0.2
0.6
0.8
1
1.2
0.4
0.4
TEMPERATURE (°C)
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
1965 G03
1965 G01
1965 G02
Quiescent Current
ADJ Pin Voltage
Quiescent Current
1.218
1.214
1.210
1.206
1.202
1.198
1.194
1.190
1.186
1.182
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
I
= 1mA
V
= 6V
T
= 25°C
J
L
IN
L
R
=
, I = 0
IN
R
= 4.02k
∞
L
L
V
= V
V
= V
SHDN
SHDN
IN
–50 –25
0
25
50
75 100 125
0
2
4
6
8
10 12 14 16 18 20
–50 –25
0
25
50
75 100 125
TEMPERATURE (°C)
TEMPERATURE (°C)
INPUT VOLTAGE (V)
1965 G05
1965 G04
1965 G06
1965f
4
Linear [ Linear ]
