AAT3167_07 Datasheet, PDF (6/14 Pages) Advanced Analogic Technologies – High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications

AAT3167
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.
Load Characteristics
(V_IN = 3.9V; 1.5X Mode; 18mA Load)
Load Characteristics
(V_IN = 2.9V; 2X Mode; 18mA Load)
V_IN
(40mV/div)
CP
(40mV/div)
V_SINK
(40mV/div)
V_IN
(40mV/div)
CP
(40mV/div)
V_SINK
(40mV/div)
Time (500ns/div)
Time (500ns/div)
V_IN
(40mV/div)
CP
(40mV/div)
V_SINK
(40mV/div)
Load Characteristics
(V_IN = 4.2V; 1.5X Mode; 27mA Load)
Time (500ns/div)
V_IN
(40mV/div)
CP
(40mV/div)
V_SINK
(40mV/div)
Load Characteristics
(V_IN = 3.3V; 2X Mode; 27mA Load)
Time (500ns/div)
Input Ripple vs. Input Voltage
18
16
27mA
14
12
18mA
10
8
6
4
14mA
2
0
2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5
Input Voltage (V)
6
3167.2007.03.1.4