LTC3611 Просмотр технического описания (PDF) - Linear Technology
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LTC3611 Datasheet PDF : 24 Pages
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LTC3611
TYPICAL PERFORMANCE CHARACTERISTICS
Input and Shutdown Currents
vs Input Voltage
1400
40
1200
1000
800
600
400
200
EXTVCC OPEN
35
30
25
SHUTDOWN
20
15
10
EXTVCC = 5V
5
0
0
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
3611 G20
INTVCC Load Regulation
0.30
0.20
0.10
0
–0.10
–0.20
–0.30
–0.40
0
10
20
30
40
50
INTVCC LOAD CURRENT (mA)
3611 G21
EXTVCC Switch Resistance
vs Temperature
10
FCB Pin Current vs Temperature
0
IEXTVCC vs Frequency
30
VIN = 24V
VOUT = 2.5V
25
20
15
10
5
0
400 500 600 700 800 900 1000
FREQUENCY (KHz)
3611 G28
RUN/SS Pin Current
vs Temperature
3
8
6
4
2
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3611 G22
–0.25
–0.50
–0.75
–1.00
–1.25
–1.50
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3611 G23
2
PULL-DOWN CURRENT
1
0
–1
–2
–50 –25
PULL-UP CURRENT
0 25 50 75
TEMPERATURE (°C)
100 125
3611 G24
RUN/SS Pin Current
vs Temperature
5.0
Undervoltage Lockout Threshold
vs Temperature
4.0
4.5
3.5
LATCHOFF ENABLE
4.0
3.0
LATCHOFF THRESHOLD
3.5
2.5
3.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3611 G25
2.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3611 G26
3611fb
7
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