AAT3123 ETC, AAT3123 Datasheet - Page 5

• Manufacturer Part Number: AAT3123
• Description: High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications
• Manufacturer: ETC

Typical Characteristics
(Unless otherwise noted, V
3123.2003.09.1.1
100%
95%
90%
85%
80%
75%
70%
65%
60%
55%
50%
85
80
75
70
65
60
2.6
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
2.7
2.7
2.7
V
2.9
DIODE
2.9
2.9
V
DIODE
V
= 3.0V
DIODE
3.1
Efficiency vs. V
3.1
Quiescent Current vs. V
3.1
= 3.0V
I
DIODE
= 3.0V
3.3
3.3
3.3
V
V
DIODE
DIODE
3.5
3.5
vs. V
3.5
= 3.2V
= 3.2V
3.7
3.7
3.7
V
V
V
IN
IN
IN
IN
IN
3.9
3.9
(V)
3.9
(4x20mA)
(V)
(V)
= 3.5V, C
IN
V
DIODE
4.1
4.1
V
4.1
(4x20mA)
V
V
DIODE
DIODE
DIODE
= 3.4V
4.3
4.3
4.3
= 3.4V
= 3.4V
= 3.2V
4.5
4.5
4.5
IN
IN
= C
4.7
4.7
4.7
OUT
4.9
4.9
4.9
High Efficiency 1X/1.5X Fractional Charge
5.1
= C1 = C2 = 1µF, T
5.1
5.1
0.850
0.825
0.800
0.775
0.750
0.725
0.700
0.675
0.650
0.625
0.600
Pump for White LED Applications
2.5
100%
95%
90%
85%
80%
75%
70%
65%
60%
55%
50%
45
40
35
2.7
2.7
2.9
3.0
2.9
A
V
DIODE
V
= 25°C)
DIODE
3.1
Efficiency vs. V
3.1
= 3.0V
I
DIODE
= 3.0V
V
3.3
3.3
IH
3.5
V
V
DIODE
DIODE
and V
3.5
vs. V
3.5
= 3.2V
= 3.2V
3.7
V
3.7
V
IN
4.0
V
IL
IN
IN
(V)
IN
3.9
(V)
vs. V
3.9
(4x10mA)
(V)
V
IN
4.1
DIODE
4.1
V
(4x10mA)
DIODE
IN
4.5
= 3.4V
4.3
4.3
= 3.4V
4.5
4.5
5.0
4.7
4.7
4.9
4.9
5.5
5.1
5.1
5