LT1763MPDE-3 データシートの表示（PDF） - Linear Technology
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LT1763MPDE-3 Datasheet PDF : 22 Pages
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LT1763 Series
TYPICAL PERFORMANCE CHARACTERISTICS
LT1763
Minimum Input Voltage
2.50
2.25
2.00
IL = 500mA
1.75
1.50
IL = 1mA
1.25
1.00
0.75
0.50
0.25 VOUT = 1.22V
0
–50 –25 0 25 50 75
TEMPERATURE (°C)
100 125
1763 G46
Output Noise Spectral Density
10
COUT = 10μF
IL = 500mA
LT1763-5
CBYP = 1000pF
1
CBYP = 100pF
LT1763
0.1 CBYP = 0.01μF
0.01
10
100
1k
10k
FREQUENCY (Hz)
100k
1763 G49
LT1763-5
10Hz to 100kHz Output Noise
CBYP = 0
Load Regulation
5
LT1763
0
LT1763-2.5
LT1763-1.5
LT1763-1.8
–5
LT1763-3
–10
LT1763-3.3
–15
LT1763-5
–20 VIN = VOUT(NOMINAL) + 1V
$IL = 1mA TO 500mA
–25
–50 –25 0 25 50 75
TEMPERATURE (°C)
100 125
1763 G47
RMS Output Noise
vs Bypass Capacitor
160
COUT = 10μF
140
IL = 500mA
f = 10Hz TO 100kHz
120 LT1763-5
LT1763-3.3
100
LT1763-3
80
LT1763-2.5
60
40 LT1763
20
0
10
LT1763-1.8
LT1763-1.5
100
1000
CBYP (pF)
10000
1763 G50
LT1763-5
10Hz to 100kHz Output Noise
CBYP = 100pF
Output Noise Spectral Density
CBYP = 0
10
LT1763-3
LT1763-5
LT1763-3.3
1
LT1763
LT1763-2.5
0.1
LT1763-1.8 LT1763-1.5
COUT = 10μF
IL = 500mA
0.01
10
100
1k
10k
FREQUENCY (Hz)
100k
1763 G48
RMS Output Noise
vs Load Current (10Hz to 100kHz)
160
COUT = 10μF
140
CBYP = 0
CBYP = 0.01μF
120
100
LT1763-5
80
60
LT1763
40
20
0
0.01
LT1763-5
LT1763
0.1
1
10
100
LOAD CURRENT (mA)
1000
1763 G51
LT1763-5
10Hz to 100kHz Output Noise
CBYP = 1000pF
VOUT
100μV/DIV
VOUT
100μV/DIV
VOUT
100μV/DIV
COUT = 10μF
IL = 500mA
1ms/DIV
1763 G52
12
COUT = 10μF
IL = 500mA
1ms/DIV
1763 G53
COUT = 10μF
IL = 500mA
1ms/DIV
1763 G54
1763fg
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