AAT3122 View Datasheet(PDF) - Advanced Analogic Technologies
Part Name
Description
MFG CO.
AAT3122
Advanced Analogic Technologies
'AAT3122' PDF : 12 Pages View PDF
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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