AAT3123 查看數據表（PDF） - Analog Technology Inc
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AAT3123
Analog Technology Inc
AAT3123 Datasheet PDF : 18 Pages
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AAT3123/23A/24
High Efficiency 1X/1.5X Fractional Charge
Pump for White LED Applications
Typical Characteristics
Unless otherwise noted, VIN = 3.5V, CIN = COUT = C1 = C2 = 1µF, TA = 25°C.
Efficiency vs. Input Voltage
(4x20mA)
100
95
90
VDIODE = 3.2V
VDIODE = 3.4V
85
VDIODE = 3.0V
80
75
70
65
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
Input Voltage (V)
Efficiency vs. Input Voltage
(4x10mA)
100
95
90
VDIODE = 3.2V
VDIODE = 3.4V
85
80
VDIODE = 3.0V
75
70
65
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
Input Voltage (V)
IDIODE vs. Input Voltage
(4x20mA)
85
VDIODE = 3.2V
VDIODE = 3.4V
80
75
VDIODE = 3.0V
70
65
60
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
Input Voltage (V)
IDIODE vs. Input Voltage
(4x10mA)
45
VDIODE = 3.2V
VDIODE = 3.4V
40
VDIODE = 3.0V
35
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
Input Voltage (V)
Quiescent Current vs. Input Voltage
VIH and VIL vs. VIN
2.6
0.850
2.4
2.2
0.825
2.0
0.800
1.8
1.6
0.775
VIH
0.750
1.4
1.2
1.0
VDIODE = 3.4V
0.725
0.700
VIL
0.8
0.6 VDIODE = 3.0V
0.4
VDIODE = 3.2V
0.675
0.650
0.2
0.625
0.0
0.600
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
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
Input Voltage (V)
3123.2005.12.1.4
5
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