AAT3131_08 ANALOGICTECH [Advanced Analogic Technologies], AAT3131_08 Datasheet - Page 5

• Manufacturer Part Number: AAT3131_08
• Description: High Efficiency 1X/1.5X Fractional Charge Pump for White LED Applications
• Manufacturer: ANALOGICTECH [Advanced Analogic Technologies]

Typical Characteristics
Unless otherwise noted, V
3131.2005.12.1.2
100
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
95
90
85
80
75
70
65
60
55
50
2.50
2.7
Quiescent Current vs. Input Voltage
2.9
V
V
V
V
V
V
3.00
DIODE
DIODE
DIODE
DIODE
Efficiency vs. Input Voltage
DIODE
DIODE
3.1
= 3.3V
= 3.4V
= 3.5V
= 3.6V
= 3.3V
= 3.4V
3.3
3.50
3.5
Input Voltage (V)
Input Voltage (V)
3.7
(4x20mA)
IN
4.00
3.9
= 3.5V, C
V
V
DIODE
DIODE
4.1 4.3
= 3.5V
= 3.6V
4.50
IN
4.5
= C
5.00
4.7 4.9
OUT
Charge Pump for White LED Applications
= C
5.50
5.1
1
= C
0.600
2
0.850
0.825
0.800
0.775
0.750
0.725
0.700
0.675
0.650
0.625
High Efficiency 1X/1.5X Fractional
= 1µF, T
2.5
90
85
80
75
70
65
60
55
50
45
40
2.7
2.9
A
V
DIODE
3.0
= 25°C.
3.1
= 3.3V
I
V
3.3
DIODE
V
IH
IH
3.5
V
DIODE
3.5
and V
V
vs. Input Voltage
Input Voltage (V)
IL
= 3.4V V
(4x20mA)
3.7
V
IN
4.0
IL
3.9
(V)
vs. V
DIODE
4.1
= 3.5V
V
IN
4.5
DIODE
4.3
AAT3131
= 3.6V
4.5
5.0
4.7
4.9
5.1
5.5
5