LT3060 查看數據表（PDF） - Linear Technology
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LT3060 Datasheet PDF : 20 Pages
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LT3060
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
Input Ripple Rejection
100
90 VOUT = 0.6V
80
70
VOUT = 5V
60
50
COUT = 10μF
40
30
20
IL = 100mA
CREF/BYP = CFF = 0
10 VIN = VOUT(NOMINAL) + 1.5V +
50mVRMS RIPPLE
COUT = 2.2μF
0
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
3060 G19
Minimum Input Voltage
2.2
2.0
1.8
1.6
IL = 100mA
1.4
IL = 50mA
1.2
1.0
0.8
0.6
0.4
0.2 VSHDN = VIN
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3060 G22
Output Noise Spectral Density
vs CREF/BYP, CFF = 0
10
VOUT = 5V
CREF/BYP = 100pF
1
VOUT = 0.6V
0.1
CREF/BYP = 10nF
COUT = 10μF
IL = 100mA
0.01
10
100
CREF/BYP = 1nF
1k
10k
FREQUENCY (Hz)
100k
3060 G25
5V Input Ripple Rejection
100
CREF/BYP = CFF = 10nF
90
CREF/BYP = 10nF, CFF = 0
80
70
60
50
40
30
20
IL = 100mA
VOUT = 5V
CREF/BYP = CFF = 0
10 COUT = 10μF
0 VIN = 6V + 50mVRMS RIPPLE
10 100 1k 10k 100k 1M 10M
FREQUENCY (Hz)
3060 G20
Load Regulation
4
3
2
1
0
–1
–2
VIN = 2.1V
–3 VOUT = 0.6V
$IL = 1mA TO 100mA
–4
–75 –50 –25 0 25 50
75 100 125 150 175
TEMPERATURE (°C)
3060 G23
Output Noise Spectral Density
vs CFF, CREF/BYP = 10nF
10
1
CFF = 10nF
CFF = 0
0.1
VOUT = 5V
COUT = 10μF
0.01 IL = 100mA
10
100
CFF = 1nF
CFF = 100pF
1k
10k
FREQUENCY (Hz)
100k
3060 G26
Ripple Rejection vs Temperature
100
90
CREF/BYP = 10nF
80
CREF/BYP = 0
70
60
50
40
30
20 IL = 100mA
10 VOUT = 0.6V
VIN = 2.6V + 0.5VP-P RIPPLE AT f = 120Hz
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3060 G21
Output Noise Spectral Density
CREF/BYP = 0, CFF = 0
10
1
0.1
0.01
10
VOUT = 5V
VOUT = 3.3V
VOUT = 2.5V
VOUT = 1.8V
VOUT = 1.5V
VOUT = 1.2V
VOUT = 0.6V
COUT = 10μF
IL = 100mA
100
1k
10k
100k
FREQUENCY (Hz)
3060 G24
RMS Output Noise vs Load Current
vs CREF/BYP, CFF = 0
110
VOUT = 0.6V
100 COUT = 10μF
CREF/BYP = 0
90
80
CREF/BYP = 10pF
70
60
50
CREF/BYP = 100pF
40
30 CREF/BYP = 1nF
20 CREF/BYP = 10nF
10
CREF/BYP = 100nF
0
0.01
0.1
1
10
100
LOAD CURRENT (mA)
3060 G27
3060f
7
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