AAT3122 查看數據表（PDF） - Analog Technology Inc
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AAT3122
Analog Technology Inc
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)
100
95
90
VDIODE = 3.3V
85
VDIODE = 3.4V
80
75
70
VDIODE = 3.5V
65
VDIODE = 3.6V
60
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)
IDIODE vs. VIN
90
VDIODE = 3.3V VDIODE = 3.4V VDIODE = 3.5V
85
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
VIH
0.750
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)
3122.2005.11.1.3
5
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