AAT3157 Datasheet, PDF (7/11 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump For White LED Applications

AAT3157
High Efficiency 1X/1.5X/2X Charge Pump
For White LED Applications
Typical Characteristics
C_IN = C_OUT = C₁ = C₂ = 1.0µF; T_A = 25°C, V_IN = 3.6V, unless otherwise noted.
EN/SET Off Timeout vs. Input Voltage
Enable Threshold High vs. Input Voltage
350
300
-40°C
250
200
150
25°C ^85°C
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
Input Voltage (V)
1.4
1.2
-40°C
1.0
0.8
25°C
85°C
0.6
0.4
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Enable Threshold Low vs. Input Voltage
1.4
1.2
1.0
-40°C
0.8
0.6
25°C _85°C
0.4
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
3157.2006.05.1.2
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