High Efficiency 1X/1.5X/2X Charge
Pump for White LED Applications
Typical Characteristics
Unless otherwise noted, V
IN
= 3.5V, C
IN
= C
OUT
= C
1
= C
2
= 1µF, T
A
= 25°C.
AAT3166
EN/SET Latch Timeout vs. Input Voltage
EN/SET Latch Timeout (μs)
μ
350
400
EN/SET Off Timeout vs. Input Voltage
EN/SET Off Timeout (μs)
μ
300
250
200
150
100
50
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
350
300
250
200
150
100
50
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
-40°C
-40°C
25°C
85°C
25°C
85°C
Input Voltage (V)
Input Voltage (V)
Enable Threshold High vs. Input Voltage
Enable Threshold Low (V)
Enable Threshold High (V)
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
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
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
Enable Threshold Low vs. Input Voltage
-40°C
-40°C
25°C
85°C
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)
Input Voltage (V)
3166.2006.05.1.2
7