AAT3151
High Efficiency 1X/1.5X/2X Charge Pump
For White LED Applications
Typical Characteristics
EN/SET Latch Timeout vs. Input Voltage
EN/SET Off Timeout vs. Input Voltage
400
350
350
300
300
250
200
150
100
50
-40°C
-40°C
250
200
150
25°C
85°C
25°C
85°C
100
50
0
0
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 5.3 5.5
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 5.3 5.5
Input Voltage (V)
Input Voltage (V)
Input Ripple vs. Input Voltage
Enable Threshold High vs. Input Voltage
1.2
1.1
1
18
16
14
12
10
8
-40°C
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
20mA
30mA
25°C
85°C
6
4
10.2mA
2
0
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 5.3 5.5
2.50 2.67 2.84 3.01 3.18 3.35 3.52 3.69 3.86 4.03 4.20
Input Voltage (V)
Input Voltage (V)
Enable Threshold Low vs. Input Voltage
1.2
1.1
1
-40°C
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
25°C
85°C
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 5.3 5.5
Input Voltage (V)
3151.2007.03.1.10
7
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
