LTC3220EPF 查看數據表（PDF） - Linear Technology
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LTC3220EPF Datasheet PDF : 20 Pages
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LTC3220/LTC3220-1
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C unless otherwise noted.
1x Mode Switch Resistance
vs Temperature
0.80
0.75
0.70
VIN = 3.3V
0.65
0.60
VIN = 3.6V
0.55
VIN = 3.9V
0.50
0.45
0.40
0.35
0.30
–40 –25 –10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
3220 G04
2x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
4.9
4.7
4.5
4.3
4.1
3.9
3.7
3.5
3.3
3.1
2.9
–40 –25 –10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
3220 G07
VIN Shutdown Current
vs VIN Voltage
7.5
6.5
TA = 125°C
TA = 85°C
5.5
TA = 25°C
4.5
TA = –40°C
3.5
2.5
1.5
2.9
3.55
4.2
4.85
VOLTAGE (V)
5.5
3220 G10
1.5x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
4.5
4.3
4.1
3.9
3.5
3.3
3.1
2.9
2.7
2.5
–40 –25 –10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
3220 G05
2x Mode CPO Voltage vs ICPO
5.2
5.1
3.3V-3.6V
5.0
4.9
3.2V
4.8
3.1V
3V
4.7
4.6
4.5
4.4
4.3
4.2
0
60 120 180 240 300 360
ICPO (mA)
3220 G08
DVCC Current vs DVCC Voltage
3.0 RST = SDA = DVCC
2.5
2.0
fSCL = 400kHz
1.5
fSCL = 100kHz
1.0
0.5
0
1.5
fSCL = 10kHz
2.5
3.5
4.5
DVCC VOLTAGE (V)
5.5
3220 G11
1.5x Mode CPO Voltage vs ICPO
4.8
4.6
3.6V 3.5V
4.4
4.2
3V
3.1V
4.0
3.2V
3.3V
3.4V
3.8
3.6
0
60 120 180 240 300 360
ICPO (mA)
3220 G06
Oscillator Frequency
vs VIN Voltage
810
800
TA = 25°C
790
780
TA = –45°C
770
760
TA = 125°C
TA = 85°C
750
740
730
2.9
3.55
4.2
4.85
VIN VOLTAGE (V)
5.5
3220 G09
1x Mode No Load VIN Current
vs VIN Voltage
610
605
600
595
590
585
580
2.9
3.55
4.2
4.85
VIN VOLTAGE (V)
5.5
3220 G12
32201fb
5
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