AAT3141
High Efficiency 1X/1.5X/2X Charge Pump
for White LED Applications
Typical Characteristics
(Unless otherwise noted, VIN = 3.5V, CIN = CCP = C1 = C2 = 1µF, TA = 25°C)
Line Response
(1X Mode, 4x19mA Load)
Line Response
(1X Mode, 4x30mA Load)
VIN
(0.5V/div)
VIN
(0.5V/div)
VLED
(20mV/div)
VLED
(20mV/div)
VCP
(0.5V/div)
VCP
(0.5V/div)
ID
(10mA/div)
ID
(10mA/div)
1ms/div
1ms/div
Line Response
(1.5X Mode, 4x19mA Load)
Line Response
(1.5X Mode, 4x30mA Load)
VIN
(0.5V/div)
VIN
(0.5V/div)
VLED
(20mV/div)
VLED
(20mV/div)
VCP
(0.5V/div)
VCP
(0.5V/div)
ID
(10mA/div)
ID
(10mA/div)
1ms/div
1ms/div
Load Characteristics
(1.5X Mode, 4x15mA Load)
Load Characteristics
(1.5X Mode, 4x30mA Load)
VF
(20mV/div)
VF
(20mV/div)
IIN
(10mA/div)
IIN
(10mA/div)
VCP
(20mV/div)
VCP
(20mV/div)
1µs/div
1µs/div
6
3141.2004.07.0.91
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
