AAT3122 Ver la hoja de datos (PDF) - Advanced Analogic Technologies
Número de pieza
componentes Descripción
Fabricante
AAT3122
Advanced Analogic Technologies
AAT3122 Datasheet PDF : 12 Pages
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AAT3122
High Efficiency 1X/1.5X Fractional Charge
Pump for White LED Applications
Typical Characteristics
(unless otherwise noted: VIN = 3.6V, CIN = COUT = C1 = C2 = 1µF, TA = 25°C)
Efficiency vs. VIN (ID = 80mA)
IDIODE vs. VIN
100%
95%
90%
VDIODE = 3.3V
85%
80%
VDIODE = 3.4V
75%
70%
VDIODE = 3.5V
65%
60%
VDIODE = 3.6V
55%
50%
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1
VIN (V)
90
85
VDIODE = 3.3V
VDIODE = 3.4V VDIODE = 3.5V
VDIODE = 3.6V
80
75
70
65
60
55
50
45
40
2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 4.7 4.9 5.1
VIN (V)
Quiescent Current vs. VIN
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
2.50
VDIODE = 3.3V
VDIODE = 3.4V
VDIODE = 3.5V
VDIODE = 3.6V
3.00
3.50
4.00
VIN (V)
4.50
5.00
5.50
VIH and VIL vs. VIN
0.850
0.825
0.800
0.775
0.750
VIH
0.725
0.700
VIL
0.675
0.650
0.625
0.600
2.5
3.0
3.5
4.0
4.5
5.0
5.5
VIN (V)
3122.2004.08.1.2
5
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