LT3008 LINER [Linear Technology], LT3008 Datasheet - Page 5

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

TYPICAL PERFORMANCE CHARACTERISTICS
100
50
90
80
70
60
40
30
20
10
1.5
1.4
1.3
1.2
1.1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
30
27
24
21
18
15
12
–50
9
6
3
0
1
0
Current Limit
–50
0
Quiescent Current
SHDN Pin Thresholds
–25
–25
2
0
0
TEMPERATURE (°C)
INPUT VOLTAGE (V)
TEMPERATURE (°C)
4
25
25
V
V
ON TO OFF
IN
OFF TO ON
IN
50
= 45V
= 2V
50
6
75
75
8
100 125
V
I
100 125
LOAD
OUT
10
= 3.3V
3008 G13
= 1μA
3008 G07
3008 G10
150
150
12
50
45
40
35
30
25
20
15
10
400
350
300
250
200
150
100
5
0
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
50
–50
0
2
1
0
Reverse Output Current
0
OUT = ADJ = 1.2V
IN = SHDN = GND
0
GND Pin Current
SHDN Pin Input Current
V
–25
OUT
1
5
= 3.3V
2
10
0
100μA (R
TEMPERATURE (°C)
SHDN PIN VOLTAGE (V)
INPUT VOLTAGE (V)
3
15
25
4
ADJ
LOAD
20
20mA (R
50
10mA (R
5
1mA (R
= 33k)
25
75
6
LOAD
30
LOAD
100 125
7
LOAD
= 165Ω)
35
= 330Ω)
8
OUT
= 3.3k)
3008 G14
3008 G08
T
3008 G11
40
9
J
150
= 25°C, unless otherwise noted.
10
45
1000
90
80
50
10
70
60
40
30
20
100
0
1.2
1.8
1.6
1.4
0.8
0.6
0.4
0.2
10
10
1
0.001
Input Ripple Rejection
2
1
0
–50
GND Pin Current vs I
SHDN Pin Input Current
V
V
IN
OUT
–25
= 3.8V
100
= 3.3V
0.01
0
FREQUENCY (Hz)
TEMPERATURE (°C)
1000
25
0.1
LOAD (mA)
V
SHDN
V
V
I
LOAD
2.2μF
IN
OUT
50
10000
= 45V
= 2.1V + 50mV
= 600mV
= 20mA
1
LT3008
LOAD
10μF
75
100000
100
10
3008 G15
125
RMS
1000000
3008 G09
3008 G12
5
3008f
100
150