LTC3441 데이터 시트보기 (PDF) - Linear Technology
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LTC3441 Datasheet PDF : 20 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
Graphs apply to both the LT3420 and LT34201-1 unless otherwise noted.
Efficiency for Figure 2 Circuit,
LT3420-1
90
TA = 25°C
80
VIN = 5V
70
VIN = 3.3V
60
50
40
VCC = VBAT = VIN
50 100 150 200 250 300 350
VOUT (V)
3420 G13
Quiescent Current in Refresh Mode
140
TA = 25°C
120
100
80
60
2.5 4.0 5.5 7.0 8.5
10
VCC (V)
3420 G16
Input Current, LT3420
1000
900
FIGURE 1 CIRCUIT
VCC = VBAT = 3.3V
TA = 25°C
800
700
600
500
50 100 150 200 250 300 350
VOUT (V)
3420 G14
VCC Minimum Operating Voltage
2.6
ENABLE VOLTAGE
2.5
IS HYSTERETIC
2.4
2.3
2.2
2.1
V–
V+
2.0
1.9
1.8
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3420 G17
LT3420/LT3420-1
Input Current, LT3420-1
600
FIGURE 2 CIRCUIT
VCC = VBAT = 3.3V
550 TA = 25°C
500
450
400
350
300
50
100 150 200 250
VOUT (V)
300 350
3420 G15
VBAT Minimum Operating Voltage
2.0
ENABLE VOLTAGE
IS HYSTERETIC
1.8
V+
1.6
1.4
V–
1.2
1.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3420 G18
3420fa
5
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