Diodes AP3156 Manuel d'utilisateur télécharger pdf (Page 6)

AP3156

HIGH EFFICIENCY 1X/1.5X/2X CHARGE PUMP

FOR WHITE LED APPLICATIONS

AP3156 Rev. 1 6 of 15 SEPTEMBER 2009

www.diodes.com © Diodes Incorporated

Typical Performance Characteristics

Efficiency vs. Supply Voltage

Turn-On to 1X Mode

= 4.2V; 20mA Load)

Turn-On from 1.5X Mode

= 3.5V; 20mA Load)

Turn-On to 2X Mode

= 2.7V; 20mA Load)

Turn-Off from 1.5X Mode

= 3.5V; 20mA Load)

Current Matching vs. Temperature

VF=3.3V

VF=3.0V

VF=2.8V

1 2 3 4 5 6 7 8 9 10 11 ... 14 15

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Diodes AP3156 Manuel d'utilisateur Page 6