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LT3045 Datasheet(PDF) 24 Page - Analog Devices

Part # LT3045
Description  5.5V, 3A Ultralow Noise, High PSRR, 45mV Dropout Linear Regulator with PMBus
PDF  62 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT3045 Datasheet(HTML) 24 Page - Analog Devices

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Data Sheet
LT3074
analog.com
Rev 0.
24 of 62
Figure 58. IN Pin PSRR
Figure 59. BIAS Pin PSRR
Figure 60. BIAS Pin PSRR
Figure 61. BIAS Pin PSRR
Figure 62. Noise Spectral Density
Figure 63. Noise Spectral Density
VOUT = 4.2V
ILOAD = 3A
VIN = 4.5V
VBIAS = 5.4V
COUT = 22µF
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
0
10
20
30
40
50
60
70
80
90
100
110
120
VOUT = 1V
VIN = 1.3V
VBIAS = 5V
COUT = 22µF
CBIASAF = 2.2µF
ILOAD = 3A
ILOAD = 2A
ILOAD = 1A
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
0
10
20
30
40
50
60
70
80
90
100
110
120
VOUT = 0.5V
ILOAD = 3A
VIN = 0.8V
VBIAS = 2.45V
COUT = 22µF
BIASAF
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
0
10
20
30
40
50
60
70
80
90
100
110
120
VOUT = 4.2V
ILOAD = 3A
VIN = 4.5V
VBIAS = 5.4V
COUT = 22µF
CBIASAF = 2.2µF
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
0
10
20
30
40
50
60
70
80
90
100
110
120
CSETCAP = 4.7µF
COUT = 22µF
VIN = 1.3
VOUT = 1V
VBIAS = 3.3V
ILOAD = 10mA
ILOAD = 0.5A
ILOAD = 1A
ILOAD = 2A
ILOAD = 3A
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
0.1
1
10
100
400
ILOAD = 3A
COUT = 22µF
VIN = 1.3
VOUT = 1V
VBIAS = 3.3V
CSETCAP = 0.1µF
CSETCAP = 0.47µF
CSETCAP = 1µF
CSETCAP = 4.7µF
CSETCAP = 10µF
CSETCAP = 22µF
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
0.1
1
10
100
700



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