LT3008 データシートの表示（PDF） - Linear Technology
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LT3008 Datasheet PDF : 16 Pages
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LT3008
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, unless otherwise noted.
Input Ripple Rejection
80
70
60
50
40
30
20
10
VIN = VOUT (NOMINAL) + 2V + 0.5VP-P
RIPPLE AT f = 120Hz
ILOAD = 20mA
0
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3008 G16
Load Regulation
5
4.5
$IL = 1μA to 20mA
VOUT = 600mV
4 VIN = 2V
3.5
3
2.5
2
1.5
1
0.5
0
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3008 G17
Output Noise Spectral Density
100
COUT = 2.2μF
5V
ILOAD = 20mA
3.3V
2.5V
1.8V
1.5V
10
1V
0.6V
1
0.1
10
100
1k
10k
FREQUENCY (Hz)
100k
3008 G18
RMS Output Noise
vs Load Current
500 COUT = 10μF
450
400
350
300
250
200
150
100
50
0
0.001 0.01
0.1
1
ILOAD (mA)
5V
3.3V
2.5V
1.8V
1.5V
1.2V
0.6V
10 100
3008 G19
Transient Response
VOUT
50mV/DIV
IOUT = 1mA TO 20mA
VIN = 5.5V
VOUT = 5V
COUT = 2.2μF
IOUT
20mA/DIV
500μs/DIV
3008 G21
Transient Response
VOUT
50mV/DIV
IOUT = 1mA TO 20mA
VIN = 5.5V
VOUT = 5V
COUT = 10μF
IOUT
20mA/DIV
500μs/DIV
3008 G22
Transient Response (Load Dump)
VOUT
50mV/DIV
VIN
10V/DIV
45V
VOUT = 5V
IOUT = 20mA
COUT = 4.7μF
12V
1ms/DIV
3008 G23
3008f
6
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