LT3023 データシートの表示（PDF） - Linear Technology
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LT3023 Datasheet PDF : 16 Pages
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LT3023
TYPICAL PERFORMANCE CHARACTERISTICS
Input Ripple Rejection
80
70
CBYP = 0.01μF
60
CBYP = 1000pF
50
CBYP = 100pF
40
30
20
10
IL = 100mA
VIN = 2.3V + 50mVRMS RIPPLE
0 COUT = 10μF
0.01 0.1
1
10
FREQUENCY (kHz)
100 1000
3023 G19
Input Ripple Rejection
80
Channel-to-Channel Isolation
70
60
VOUT1
20mV/DIV
50
40
VOUT2
20mV/DIV
30
20 VIN = VOUT (NOMINAL) +
1V + 0.5VP-P RIPPLE
10 AT f = 120Hz
IL = 50mA
0
–50 –25 0 25 50 75
TEMPERATURE (°C)
100 125
3023 G20
50μs/DIV
COUT1, COUT2 = 10μF
CBYP1, CBYP2 = 0.01μF
ΔIL1 = 10mA to 100mA
ΔIL2 = 10mA to 100mA
VIN = 6V, VOUT1 = VOUT2 = 5V
3023 G21a
Channel-to-Channel Isolation
100
ILOAD = 100mA PER CHANNEL
90
80
70
60
50
40
30
20
10
0
0.01
0.1
1
10 100 1000
FREQUENCY (kHz)
3023 G21b
Minimum Input Voltage
2.5
2.0
IL = 100mA
1.5
IL = 50mA
1.0
0.5
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3023 G22
Output Noise Spectral Density
10
COUT = 10μF
CBYP = 0
IL = 100mA
1
VOUT SET FOR 5V
VOUT =VADJ
0.1
Output Noise Spectral Density
10
COUT = 10μF
IL = 100mA
VOUT SET FOR 5V
1
CBYP = 1000pF
CBYP = 100pF
VOUT =VADJ
0.1
CBYP = 0.01μF
0.01
0.01
0.1
1
10
FREQUENCY (kHz)
100
3023 G24
0.01
0.01
0.1
1
10
FREQUENCY (kHz)
100
3023 G25
6
Load Regulation
0
–1
–2
–3
–4
–5
–6
–7
–8
–9
ΔIL = 1mA TO 100mA
–10
–50 –25 0 25 50 75
TEMPERATURE (°C)
100 125
3023 G23
RMS Output Noise vs
Bypass Capacitor
160
COUT = 10μF
140
IL = 100mA
f = 10Hz TO 100kHz
120
100
VOUT SET FOR 5V
80
60
40
VOUT =VADJ
20
0
10
100
1k
10k
CBYP (pF)
3023 G26
3023fa
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