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LT3083MPDF 数据表(PDF) 8 Page - Analog Devices

部件名 LT3083MPDF
功能描述  Adjustable 3A Single Resistor Low Dropout Regulator
PDF  28 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

LT3083MPDF 数据表(HTML) 8 Page - Analog Devices

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LT3083
8
Rev. B
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Noise Spectral Density
Output Voltage Noise
Error Amplifier Gain and Phase
Ripple Rejection, Single Supply
Ripple Rejection, Dual Supply,
VCONTROL Pin
Ripple Rejection, Dual Supply,
IN Pin
10
100
10M
3083 G25
0
10
100
70
60
90
80
50
40
30
20
1k
10k
100k
1M
FREQUENCY (Hz)
ILOAD = 0.1A
ILOAD = 1.5A
COUT = 10µF CERAMIC
CSET = 0.1µF CERAMIC
RIPPLE = 50mVP-P
VIN – VCONTROL = VOUT(NOMINAL) + 2V
ILOAD = 0.5A
10
100
10M
3083 G26
0
15
120
105
90
75
60
45
30
1k
10k
100k
1M
FREQUENCY (Hz)
COUT = 10µF CERAMIC
CSET = 0.1µF
VIN = VOUT(NOMINAL) + 1V
VCONTROL = VOUT(NOMINAL) + 2V
ILOAD = 0.1A
ILOAD = 1.5A
10
100
10M
3083 G27
0
15
120
105
90
75
60
45
30
1k
10k
100k
1M
FREQUENCY (Hz)
COUT = 10µF CERAMIC
CSET = 0.1µF
VIN = VOUT(NOMINAL) + 1V
VCONTROL = VOUT(NOMINAL) + 2V
ILOAD = 0.5A
ILOAD = 0.1A
ILOAD = 1.5A
–50
50
150
3083 G28
70
72
80
78
76
79
77
75
74
73
71
25
–25
0
75 100 125
TEMPERATURE (°C)
VIN = VCONTROL = VOUT(NOMINAL) + 2V
RIPPLE = 500mVP-P, ƒ = 120Hz
ILOAD = 0.5A
CSET = 0.1µF, COUT = 10µF
Ripple Rejection (120Hz)
10
100
100k
3083 G29
10
1000
100
1
100
10
1k
10k
FREQUENCY (Hz)
3083 G30
VOUT
100µV/DIV
TIME 1ms/DIV
VOUT = 1V, RSET = 20k
CSET = 0.1µF, COUT = 10µF
ILOAD = 3A
10
100
1M
3083 G31
–15
–12
21
12
9
18
15
6
3
0
–6
–3
–9
–396
–360
36
–108
–144
0
–36
–72
–180
–216
–288
–252
–324
1k
10k
100k
FREQUENCY (Hz)
PHASE
GAIN
ILOAD = 0.5A
ILOAD = 1.5A
ILOAD = 3A
TA = 25°C, unless otherwise noted.



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