Diodes AP3154A - Manual (Page 6)

AP3154A
120mA HIGH EFFICIENCY WHITE LED DRIVER
AP3154A Rev. 1 6 of 14 AUGUST 2009
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Typical Performance Characteristics
Efficiency vs. Supply Voltage Turn-On to 1X Mode
(V
IN
= 4.2V; 20mA Load)
Turn-On from 1.5X Mode
(V
IN
= 3.5V; 20mA Load)
Turn-On to 2X Mode
(V
IN
= 2.7V; 20mA Load)
Turn-Off from 1.5X Mode
(V
IN
= 3.5V; 20mA Load)
Current Matching vs. Temperature