LT3029 LINER [Linear Technology], LT3029 Datasheet - Page 4

• Manufacturer Part Number: LT3029
• Description: Dual 500mA/500mA Low Dropout, Low Noise, Micropower Linear Regulator
• Manufacturer: LINER [Linear Technology]

LT3029
ELECTRICAL CHARACTERISTICS
Note 7: GND pin current is tested with V
load. This means the device is tested while operating in its dropout region
or at the minimum input voltage specifi cation. This is the worst-case
GND pin current. The GND pin current decreases slightly at higher input
voltages. Total GND pin current equals the sum of output 1 and output 2
GND pin currents.
Note 8: ADJ1/ADJ2 pin bias current fl ows into the pin.
Note 9: The LT3029 contains current limit foldback circuitry. See the
Typical Performance Characteristics for current limit as a function of the
V
TYPICAL PERFORMANCE CHARACTERISTICS
4
IN
– V
OUT
differential voltage.
500
450
400
350
300
250
200
150
100
500
450
400
350
300
250
200
150
100
50
50
0
0
–75 –50 –25 0
0
Typical Dropout Voltage
Dropout Voltage vs Temperature
50 100 150 200 250 300 350 400 450 500
I
L
= 1mA
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
25 50 75 100 125 150 175
IN
T
= 2.437V and a current source
I
J
L
= –55°C
= 50mA
T
J
T
= 25°C
I
J
I
I
T
L
L
L
I
= 150°C
J
L
= 250mA
= 100mA
= 500mA
= 125°C
= 10mA
3029 G01
3029 G03
Note 10: SHDN1/ SHDN2 pin current fl ows into the pin.
Note 11: The LT3029 minimum input voltage specifi cation limits dropout
voltage under some output voltage/load conditions. See the curve of
Minimum Input Voltage in the Typical Performance Characteristics.
Note 12: The LT3029 includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature exceeds the maximum operating junction temperature when
overtemperature protection is active. Continuous operation above the
specifi ed maximum operating junction temperature may impair device
reliability.
500
450
400
350
300
250
200
150
100
150
125
100
50
75
50
25
0
0
–75 –50 –25 0
0
Guaranteed Dropout Voltage
Quiescent Current (per Channel)
V
R
IN
L
= TEST POINTS
50 100 150 200 250 300 350 400 450 500
= 243k, I
= 6V
T
J
= 25°C, unless otherwise noted.
OUTPUT CURRENT (mA)
L
TEMPERATURE (°C)
V
= 5μA
SHDN
25 50 75 100 125 150 175
T
T
J
J
= 150°C
= V
= 25°C
IN
3029 G04
3029 G02
3029f