AAT3158
High Efficiency 1X/1.5X/2X Charge Pump
for White LED Applications
Typical Characteristics
Load Characteristics
(VIN = 3.7V; 1.5X Mode; 20mA/ch Load)
Load Characteristics
(VIN = 3.5V; 1.5X Mode; 14mA/ch Load)
VIN
(20mV/div)
VIN
(20mV/div)
VCP
(40mV/div)
VCP
(40mV/div)
VSINK
(20mV/div)
VSINK
(20mV/div)
Time (500ns/div)
Time (500ns/div)
Load Characteristics
(VIN = 2.9V; 2X Mode; 20mA/ch Load)
Load Characteristics
(VIN = 2.9V; 2X Mode; 14mA/ch Load)
VIN
(20mV/div)
VIN
(20mV/div)
VCP
(40mV/div)
VCP
(40mV/div)
VSINK
(40mV/div)
VSINK
(40mV/div)
Time (500ns/div)
Time (500ns/div)
Input Ripple vs. Input Voltage
14.0
12.0
10.0
8.0
20mA/ch
14mA/ch
6.0
4.0
10mA/ch
2.0
0.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
6
3158.2006.02.1.0
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
