AAT3142_07 Datasheet, PDF (5/16 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications

AAT3142
High Efficiency 1X/1.5X/2X Charge Pump
for White LED Applications
Typical Characteristics
V_IN = 3.5V, C_IN = C_CP = C₁ = C₂ = 1µF, T_A = 25°C, unless otherwise noted.
Efficiency vs. Input Voltage
(Code 26)
Efficiency vs. Input Voltage
(D1 = 3.5V, D2 = 3.3V, D3 = 3.2V)
100
90
80
3.0V_F
100
90 Code 26
80
70
70
60
60
Code 32
50
3.5V_F
50 _{Code 28}
40
40
30
2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2
30
2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2
Input Voltage (V)
Input Voltage (V)
Efficiency vs. Input Voltage
(D1-D2 = 3.5V, D3 = 3.2V)
100
90 _{Code 26}
80
70
60
50
Code 32
40 _{Code 28}
30
2.9 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2
Input Voltage (V)
3142.2007.03.1.2
5