LT3008 LINER [Linear Technology], LT3008 Datasheet - Page 4

• Manufacturer Part Number: LT3008
• Description: 3?A IQ, 20mA, 45V Low Dropout Linear Regulator
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFORMANCE CHARACTERISTICS
LT3008
ELECTRICAL CHARACTERISTICS
Note 6: To satisfy minimum input voltage requirements, the LT3008
adjustable version is tested and specifi ed for these conditions with an
external resistor divider (61.9k bottom, 280k top) which sets V
The external resistor divider adds 9.69μA of DC load on the output. This
external current is not factored into GND pin current.
Note 7: GND pin current is tested with V
current source load. GND pin current will increase in dropout. See the GND
Pin Current curves in the Typical Performance Characteristics section.
4
temperature range, otherwise specifi cations are at T
0.600
0.598
0.612
0.610
0.608
0.606
0.604
0.602
0.596
0.594
0.592
0.590
0.588
450
350
300
250
200
100
400
150
50
0
–50 –25
0
Dropout Voltage
ADJ Pin Voltage
I
L
= 100μA
2
4
OUTPUT CURRENT (mA)
0
TEMPERATURE (°C)
6
T
25
J
8
= 125°C
T
J
10 12 14
50
= 25°C
75
100 125 150
16 18
IN
= V
3008 G01
3008 G04
OUT(NOMINAL)
20
–10
300
250
200
100
450
400
350
150
10
–2
–4
–6
–8
50
8
6
4
2
0
0
–50 –25
+ 0.5V and a
–50 –25
J
Dropout Voltage
ADJ Pin Bias Current
= 25°C. (Note 2)
OUT
to 3.3V.
The
1mA
20mA
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
l
25
25
denotes the specifi cations which apply over the full operating
50
50
Note 8: The SHDN pin can be driven below GND only when tied to the IN
pin directly or through a pull-up resistor. If the SHDN pin is driven below
GND by more than –0.3V while IN is powered, the output will turn on.
Note 9: Output noise is listed for the adjustable version with the ADJ pin
connected to the OUT pin. See the RMS Output Noise vs Load Current
curve in the Typical Performance Characteristics Section.
75
75
100μA
10mA
100 125 150
100 125 150
3008 G05
3008 G02
T
J
= 25°C, unless otherwise noted.
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
3
6
5
4
2
1
0
2
1
0
–50 –25
–50 –25
Minimum Input Voltage
Quiescent Current
I
LOAD
= 20mA
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
25
25
50
50
75
75
100 125 150
100 125 150
3008 G06
3008 G03
3008f