lt3009 Linear Technology Corporation, lt3009 Datasheet - Page 6

• Manufacturer Part Number: lt3009
• Description: 3?a Iq, 20ma Low Dropout Linear Regulators
• Manufacturer: Linear Technology Corporation

LT3009 Series
TYPICAL PERFORMANCE CHARACTERISTICS
6
500
450
400
350
300
250
200
150
100
250
450
400
350
300
200
150
100
50
20
18
16
14
12
10
50
0
8
6
4
2
0
0
0
Quiescent Current
0
GND Pin Current
LT3009-5
0
SHDN Pin Input Current
2
1
1
LT3009-1.8
LT3009-3.3
4
2
2
R
SHDN PIN VOLTAGE (V)
L
LT3009-5
6
INPUT VOLTAGE (V)
= 50k, I
3
INPUT VOLTAGE (V)
3
8
4
4
R
R
L
L
L
10
= 250Ω, I
= 100μA
= 500Ω, I
5
5
12
6
6
R
L
= 5k, I
14
L
7
L
7
= 20mA
= 10mA
I
LOAD
16
8
8
L
= 1mA
= 1μA
18
3009 G10
3009 G16
3009 G13
9
9
20
10
10
1600
1400
1000
1200
1000
800
600
400
200
250
500
450
400
350
300
200
150
100
100
50
10
0
0
1
0.001
–50 –25
0
GND Pin Current vs I
SHDN Pin Input Current
GND Pin Current
LT3009-1.8
V
V
V
SHDN
IN
OUT
1
= 3.8V
R
= 3.3V
0.01
= 20V
L
2
= 18k, I
0
TEMPERATURE (°C)
INPUT VOLTAGE (V)
3
25
R
R
R
L
0.1
LOAD (mA)
4
L
L
L
= 100μA
= 90Ω, I
= 180Ω, I
= 1.8k, I
50
5
6
1
LOAD
L
75
L
L
= 20mA
= 1mA
= 10mA
7
100 125 150
10
8
3009 G17
3009 G11
3009 G14
T
9
A
= 25°C, unless otherwise noted.
100
10
250
450
400
350
300
200
150
100
1.4
1.0
0.2
1.2
0.8
0.6
0.4
70
60
50
40
30
20
10
50
0
0
0
–50 –25
–50 –25
GND Pin Current
LT3009-3.3
0
SHDN Pin Thresholds
Current Limit
1
R
2
L
0
0
= 33k, I
TEMPERATURE (°C)
TEMPERATURE (°C)
INPUT VOLTAGE (V)
3
25
25
V
V
OFF TO ON
ON TO OFF
4
L
IN
IN
= 100μA
= 20V
= 1.6V
50
50
5
R
R
R
L
L
L
= 165Ω, I
= 330Ω, I
= 3.3k, I
6
75
75
7
100 125 150
100 125 150
L
L
L
8
= 1mA
= 20mA
= 10mA
3009 G18
3009 G12
3009 G15
9
3009fa
10