LT3050 Просмотр технического описания (PDF) - Linear Technology
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LT3050 Datasheet PDF : 26 Pages
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LT3050 Series
TYPICAL PERFORMANCE CHARACTERISTICS TJ = 25°C, unless otherwise noted.
Reverse Output Current
1.0
ALL PINS GROUNDED EXCEPT FOR OUT
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
10
20
30
40
50
VOUT (V)
3050 G16
Reverse Output Current
50
VOUT = VADJ = 1.2V
45 VIN = 0
40
35
30
25
20
15
IADJ
10
5
0
–75 –50 –25
IOUT
0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3050 G17
Input Ripple Rejection
90
CREF/BYP = 10nF
80
CREF/BYP = 100pF
CREF/BYP = 0
70
60
50
40
30
20 IL = 100mA
COUT = 10μF
10 VOUT = 5V
VIN = 5.8V + 50mVRMS RIPPLE
0
10 100 1K 10K 100K
FREQUENCY (Hz)
1M 10M
3050 G18
Input Ripple Rejection
90
COUT = 10μF
80
COUT = 2.2μF
70
60
50
40
30
20 IL = 100mA
CREF/BYP = 100pF
10 VOUT = 5V
VIN = 5.8V + 50mVRMS RIPPLE
0
10 100 1K 10K 100K
FREQUENCY (Hz)
1M 10M
3050 G19
Ripple Rejection vs Temperature
100
COUT = 10µF
90
CREF/BYP = 10nF
80
70
60
50
40
30
20 IL = 100mA
10
VOUT = 5V
VIN = 5.8V + 0.5VP-P RIPPLE AT f = 120Hz
0
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3050 G19a
Minimum Input Voltage
2.2
IL =100mA
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–75 –50 –25
0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3050 G20
Load Regulation
4
ΔIL = 1mA TO 100mA
3 VOUT = 0.6V
VIN = 2.2V
2
1
0
–1
–2
–3
–4
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3050 G21
8
Load Regulation
–0
–3
–6
–9
–12
–15
–18
–21
–24
–27 ΔIL = 1mA TO 100mA
–30 VOUT = 3.3V
VIN = 3.9V
–33
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3050 G21a
Load Regulation
–0
–5
–10
–15
–20
–25
–30
–35
–40 ΔIL = 1mA TO 100mA
–45 VOUT = 5V
VIN = 5.6V
–50
–75 –50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
3050 G21b
3050fa
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