LT3024 LINER [Linear Technology], LT3024 Datasheet - Page 4

• Manufacturer Part Number: LT3024
• Description: Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulator
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
LT3024
Note 4: Operating conditions are limited by maximum junction
temperature. The regulated output voltage specification will not apply for
all possible combinations of input voltage and output current. When
operating at maximum input voltage, the output current range must be
limited. When operating at maximum output current, the input voltage
range must be limited.
Note 5: To satisfy requirements for minimum input voltage, the LT3024 is
tested and specified for these conditions with an external resistor divider
(two 250k resistors) for an output voltage of 2.44V. The external resistor
divider will add a 5 A DC load on the output.
Note 6: Dropout voltage is the minimum input to output voltage differential
needed to maintain regulation at a specified output current. In dropout, the
output voltage will be equal to: V
Note 7: GND pin current is tested with V
load. This means the device is tested while operating in its dropout region
TYPICAL PERFOR A CE CHARACTERISTICS
4
500
450
400
350
300
250
200
150
100
500
450
400
350
300
250
200
150
100
50
50
0
0
0
0
Output 2
Typical Dropout Voltage
Output 1
Typical Dropout Voltage
10 20 30 40 50 60 70 80 90 100
50 100 150 200 250 300 350 400 450 500
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
T
J
T
= 125 C
T
J
J
T
= 125 C
J
= 25 C
= 25 C
IN
– V
W
DROPOUT
IN
3024 G01
3024 G04
= 2.44V and a current source
U
.
500
450
400
350
300
250
200
150
100
500
450
400
350
300
250
200
150
100
50
50
0
0
0
0
Output 2
Guaranteed Dropout Voltage
Output 1
Guaranteed Dropout Voltage
50 100 150 200 250 300 350 400 450 500
10 20 30 40 50 60 70 80 90 100
= TEST POINTS
= TEST POINTS
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
T
T
T
T
J
J
J
J
or at the minimum input voltage specification. This is the worst-case GND
pin current. The GND pin current will decrease slightly at higher input
voltages. Total GND pin current is equal to the sum of GND pin currents
from Output 1 and Output 2.
Note 8: ADJ1 and ADJ2 pin bias current flows into the pin.
Note 9: SHDN1 and SHDN2 pin current flows into the pin.
Note 10: 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 the GND pin.
Note 11: For the LT3024 dropout voltage will be limited by the minimum
input voltage specification under some output voltage/load conditions. See
the curve of Minimum Input Voltage in the Typical Performance
Characteristics.
125 C
125 C
25 C
25 C
3024 G02
3024 G05
500
450
400
350
300
250
200
150
100
500
450
400
350
300
250
200
150
100
50
50
0
0
–50
–50
Output 2 Dropout Voltage
Output 1 Dropout Voltage
I
L
= 50mA
–25
–25
I
L
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
= 100mA
I
L
= 100mA
25
25
I
I
L
L
= 250mA
= 10mA
50
50
I
I
L
L
I
L
= 50mA
= 10mA
= 1mA
75
75
I
L
I
= 500mA
L
100
100
= 1mA
3024 G06
3024 G03
3024f
125
125