lt3050 Linear Technology Corporation, lt3050 Datasheet - Page 5
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lt3050
Manufacturer Part Number
lt3050
Description
100ma, Low Noise Linear Regulator With Precision Current Limit And Diagnostic Functions
Manufacturer
Linear Technology Corporation
Datasheet
1.LT3050.pdf
(20 pages)
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TYPICAL PERFORMANCE CHARACTERISTICS
2.50
2.25
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
600
550
500
450
400
350
300
250
200
150
100
50
80
70
60
50
40
30
20
10
0
0
0
–75
0
0 1 2
Typical Dropout Voltage
Quiescent Current
GND Pin Current
V
OUT
–50
10 20 30 40 50 60 70 80 90 100
= 5V
–25 0
OUTPUT CURRENT (mA)
3 4
V
V
I
V
ALL OTHER PINS = 0V
TEMPERATURE (°C)
INPUT VOLTAGE (V)
L
IN
OUT
IN
R
T
= 5μA
T
J
L
= V
= 12V
25
J
≤ 125°C
5
= 5k, I
= 5V
≤ 25°C
SHDN
50
6
R
R
R
L
L
L
L
= 12V
7
= 1mA
75 100 125 150 175
= 50, I
= 100, I
= 500, I
8
L
9 10 11 12
L
L
= 100mA
= 50mA
= 10mA
3050 G01
3050 G04
3050 G07
600
550
500
450
400
350
300
250
200
150
100
612
610
608
606
604
602
600
598
596
594
592
590
588
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
50
0
0
–75
0
Guaranteed Dropout Voltage
ADJ Pin Voltage
GND Pin Current vs I
0 10 20 30 40 50 60 70 80 90 100
V
V
IN
OUT
=TEST POINTS
–50
10 20 30 40 50 60 70 80 90 100
= 5.6V
= 5V
–25 0
OUTPUT CURRENT (mA)
TEMPERATURE (°C)
25
I
LOAD
50
(mA)
T
T
J
75 100 125 150 175
J
LOAD
= 125°C
= 25°C
T
3050 G05
3050 G02
3050 G08
J
= 25°C, unless otherwise noted.
100
600
550
500
450
400
350
300
250
200
150
100
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
90
80
70
60
50
40
30
20
10
50
0
0
0
–75 –50
–75
0
Dropout Voltage
5V Quiescent Current
SHDN Pin Threshold
I
L
–50
= 1mA
5
V
V
–25
–25 0
SHDN
SHDN
ON TO OFF
10
TEMPERATURE (°C)
TEMPERATURE (°C)
0
= V
= 0
15
V
IN
25 50 75 100 125 150 175
25
, R
, R
20
V
L
IN
L
50
= 0
= 500k
(V)
25
75 100 125 150 175
LT3050
30
OFF TO ON
I
L
35
I
I
L
L
= 100mA
I
L
= 50mA
= 10mA
= 1mA
40
3050 G03
3050 G06
3050 G09
5
3050f
45