3412EFE データシートの表示（PDF） - Linear Technology
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3412EFE Datasheet PDF : 20 Pages
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LTC3412
TYPICAL PERFOR A CE CHARACTERISTICS
Switch On-Resistance
vs Temperature
120
VIN = 3.3V
110
100
PFET ON-RESISTANCE
90
80
70
60
50 NFET ON-RESISTANCE
40
30
20
–40 –20 0 20 40 60 80 100 120
TEMPERATURE (°C)
3412 G13
Frequency vs Input Voltage
1050
R = 309k
1040
1030
1020
1010
1000
990
2.5
3 3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
3412 G16
DC Supply Current vs Temperature
350
VIN = 3.3V
300
ACTIVE
250
200
150
100
SLEEP
50
0
–40 –20
0 20 40 60 80 100 120
TEMPERATURE (°C)
3412 G19
Switch Leakage vs Input Voltage
2.5
2.0
1.5
1.0
SYNCHRONOUS SWITCH
0.5
MAIN SWITCH
0
2.5 3 3.5 4 4.5
INPUT VOLTAGE (V)
5 5.5
3412 G14
Switching Frequency
vs Temperature
1010
1008
VIN = 3.3V
1006
1004
1002
1000
998
996
994
992
990
–40 –20 0 20 40 60 80 100 120
TEMPERATURE (°C)
3412 G17
Minimum Peak Inductor Current
vs Burst Clamp Voltage
4000
VIN = 3.3V
3500
3000
2500
2000
1500
1000
500
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
BURST CLAMP VOLTAGE (V)
3412 G20
Frequency vs ROSC
4500
4000
VIN = 3.3V
3500
3000
2500
2000
1500
1000
500
0
50 150 250 350 450 550 650 750 850 950
ROSC (kΩ)
3412 G15
DC Supply Current
vs Input Voltage
350
300
ACTIVE
250
200
150
100
50
2.5
SLEEP
3 3.5 4 4.5 5 5.5
INPUT VOLTAGE (V)
3412 G18
Current Limit vs Input Voltage
6.8
6.6
6.4
6.2
6.0
5.8
5.6
5.4
2.75
3.25 3.75 4.25 4.75
INPUT VOLTAGE (V)
5.25
3412 G21
3412fb
5
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