Datasheet

LT3045
9
Rev. B
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TYPICAL PERFORMANCE CHARACTERISTICS
V
OUT
Forced Above V
OUT(NOMINAL)
Power Supply Ripple Rejection Power Supply Ripple Rejection
PG Output Low Voltage PG Pin Leakage Current
I
SET
During Start-Up with Fast
Start-Up Enabled
I
SET
During Start-Up with Fast
Start-Up Enabled
Output Overshoot Recovery
Current Sink
Output Overshoot Recovery
Current Sink
T
J
= 25°C, unless otherwise noted.
V
IN
= 2V
V
PGFB
= 290mV
I
PG
= 100µA
TEMPERATURE (°C)
–75
–50
–25
0
25
50
75
100
125
150
0
5
10
15
20
25
30
35
40
45
50
V
PG
(mV)
3045 G34
V
PG
= 2V
V
PGFB
= 310mV
TEMPERATURE (°C)
–75
–50
–25
0
25
50
75
100
125
150
0
10
20
30
40
50
60
70
80
90
100
I
PG
(nA)
3045 G35
V
IN
= 2.5V
V
PGFB
= 290mV
V
SET
= 1.3V
TEMPERATURE (°C)
–75
–50
–25
0
25
50
75
100
125
150
0
0.5
1.0
1.5
2.0
2.5
3.0
I
SET
(mA)
3045 G36
V
PGFB
= 290mV
V
SET
= 1.3V
V
IN
-TO-V
SET
DIFFERENTIAL (V)
0
2
4
6
8
10
12
14
16
18
20
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
I
SET
(mA)
3045 G37
V
IN
= 5V
R
SET
= 33.2k
150°C
125°C
25°C
–55°C
V
OUT
– V
SET
(mV)
0
5
10
15
20
0
2
4
6
8
10
12
OUTPUT SINK CURRENT (mA)
3045 G38
V
IN
= 5V
R
SET
= 33.2k
V
OUT
– V
SET
> 5mV
TEMPERATURE (°C)
–75
–50
–25
0
25
50
75
100
125
150
0
1
2
3
4
5
6
7
OUTPUT SINK CURRENT (mA)
3045 G39
V
IN
= 5V
R
SET
= 33.2k
I
IN
when V
EN
= 0V
I
OUT
when V
EN
= 0V
I
IN
when V
EN
= V
IN
I
OUT
when V
EN
= V
IN
OUTPUT VOLTAGE (V)
4
5
6
7
8
9
10
11
12
13
14
15
0
2
4
6
8
CURRENT (mA)
3045 G40
V
IN
= 5V
R
SET
= 30.1k
C
OUT
= 10µF
I
L
= 500mA
C
SET
= 4.7µF
C
SET
= 0.47µF
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
20
30
40
50
60
70
80
90
100
110
120
PSRR (dB)
3045 G41
V
IN
= 5V
R
SET
= 30.1k
C
SET
= 0.47µF
I
L
= 500mA
C
OUT
= 10µF
C
OUT
= 22µF
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
20
30
40
50
60
70
80
90
100
110
120
PSRR (dB)
3045 G42
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