AP3156
HIGH EFFICIENCY 1X/1.5X/2X CHARGE PUMP
FOR WHITE LED APPLICATIONS
Typical Performance Characteristics
Efficiency vs. Supply Voltage
Turn-On to 1X Mode
(V IN = 4.2V; 20mA Load)
VF=3. 3 V
VF=2.8V
VF=3.0V
Turn-On from 1.5X Mode
(V IN = 3.5V; 20mA Load)
Turn-Off from 1.5X Mode
(V IN = 3.5V; 20mA Load)
Turn-On to 2X Mode
(V IN = 2.7V; 20mA Load)
Current Matching vs. Temperature
AP3156 Rev. 1
6 of 15
www.diodes.com
SEPTEMBER 2009
? Diodes Incorporated
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