z Input voltage range : 2.5V-6V z Output voltage range : up to 23V externally set-up reference voltage 0.25V　　 z Oscillation frequency : 1.0MHz　 z On resistance : 0.8Ω z .

on cellular phones, PDAs and digital cameras etc. Output voltage of up to 23V can be derived, and from a 3.2V input six .

The AP3127B Series is a fixed frequency, constant current step-up DC/DC converter ideal for driving LEDs used in backlighting applications on cellular phones, PDAs and digital cameras etc. Output voltage of up to 23V can be derived, and from a 3.2V i.

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