AAT3123 Datasheet, PDF (5/18 Pages) List of Unclassifed Manufacturers – High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications

AAT3123/23A/24
High Efficiency 1X/1.5X Fractional Charge
Pump for White LED Applications
Typical Characteristics
Unless otherwise noted, V_IN = 3.5V, C_IN = C_OUT = C₁ = C₂ = 1µF, T_A = 25°C.
Efficiency vs. Input Voltage
(4x20mA)
100
95
90
V_DIODE = 3.2V
V_DIODE = 3.4V
85
V_DIODE = 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
V_DIODE = 3.2V
V_DIODE = 3.4V
85
80
V_DIODE = 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)
I_DIODE vs. Input Voltage
(4x20mA)
85
V_DIODE = 3.2V
V_DIODE = 3.4V
80
75
V_DIODE = 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)
I_DIODE vs. Input Voltage
(4x10mA)
45
V_DIODE = 3.2V
V_DIODE = 3.4V
40
V_DIODE = 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
V_IH and V_IL vs. V_IN
2.6
0.850
2.4
2.2
0.825
2.0
0.800
1.8
1.6
0.775
V_IH
0.750
1.4
1.2
1.0
V_DIODE = 3.4V
0.725
0.700
V_IL
0.8
0.6 VDIODE = 3.0V
0.4
V_DIODE = 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
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