AP3127B Step-Up DC/DC Converter

Chipown

Description

AP3127B Chipown Step-Up DC/DC Converter Series White LED Backlight Driver General .
The AP3127B Series is a fixed frequency, constant current step-up DC/DC converter ideal for driving LEDs used in backlighting applications on cellular.

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Datasheet Specifications

Part number: AP3127B
Manufacturer: Chipown
File Size: 433.07 KB
Datasheet: AP3127B-Chipown.pdf
Description: Step-Up DC/DC Converter

Features

* 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 Efficiency : 88%(When driving 3 white LEDs in series Vin=3.6V ILED=20mA) z Control : PWM control z Stand-by Current : ISTB=1.0uA z

Applications

* on cellular phones, PDAs and digital cameras etc. Output voltage of up to 23V can be derived, and from a 3.2V input six white LED’s can be driven in series or alternatively, using a 2.5V input, a network of two parallel legs with three in each may be driven. Luminance of the LED’s is controlled by c

AP3127B Distributors

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