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LT3045 Datasheet(PDF) 10 Page - Linear Technology

Part # LT3045
Description  20V, 500mA, Ultralow Noise, Ultrahigh PSRR Linear Regulator with VIOC Control
PDF  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT3045 Datasheet(HTML) 10 Page - Linear Technology

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LT3045-1
10
30451fa
For more information www.linear.com/LT3045-1
TYPICAL PERFORMANCE CHARACTERISTICS
VOUT Forced Above VOUT(NOMINAL)
Power Supply Ripple Rejection
Power Supply Ripple Rejection
ISET During Start-Up with Fast
Start-Up Enabled
Output Overshoot Recovery
Current Sink
Output Overshoot Recovery
Current Sink
TJ = 25°C, unless otherwise noted.
VPGFB = 290mV
VSET = 1.3V
VIN-TO-VSET 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
30451 G37
VIN = 5V
RSET = 33.2k
150°C
125°C
25°C
–55°C
VOUT – VSET (mV)
0
5
10
15
20
0
2
4
6
8
10
12
30451 G38
VIN = 5V
RSET = 33.2k
VOUT – VSET > 5mV
TEMPERATURE (°C)
–75 –50 –25 0
25 50 75 100 125 150
0
1
2
3
4
5
6
7
30451 G39
VIN = 5V
RSET = 33.2k
OUTPUT VOLTAGE (V)
4 5 6 7 8 9 10 11 12 13 14 15
0
2
4
6
8
30451 G40
IIN WHEN VEN = 0V
IOUT WHEN VEN = 0V
IIN WHEN VEN = VIN
IOUT WHEN VEN = VIN
VIN = 5V
RSET = 30.1k
COUT = 10µF
IL = 500mA
CSET = 4.7µF
CSET = 0.47µF
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
20
30
40
50
60
70
80
90
100
110
120
30451 G41
VIN = 5V
RSET = 30.1k
CSET = 0.47µF
IL = 500mA
COUT = 10µF
COUT = 22µF
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
20
30
40
50
60
70
80
90
100
110
120
30451 G42
Power Supply Ripple Rejection
Power Supply Ripple Rejection
as a Function of Error Amplifier
Input Pair
Power Supply Ripple Rejection
VIN = 5V
RSET = 30.1k
COUT = 10µF
CSET = 0.47µF
IL = 500mA
IL = 300mA
IL = 100mA
IL = 50mA
IL = 1mA
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
20
40
60
80
100
120
140
30451 G43
VIN = VOUT + 2V
IL = 500mA
COUT = 10µF
CSET = 0.47µF
VOUT ≥ 1.3V
0.6V < VOUT < 1.3V
VOUT ≤ 0.6V
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
20
30
40
50
60
70
80
90
100
110
120
30451 G44
IL = 500mA
RSET = 30.1k
COUT = 10µF
CSET = 0.47µF
100kHz
500kHz
1MHz
2MHz
INPUT–TO–OUTPUT DIFFERENTIAL (V)
0
1
2
3
4
5
0
10
20
30
40
50
60
70
80
90
100
30451 G45



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