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XR3081 - Step-Up Converter

General Description

The XR3081 is a current-mode and fixed frequency boost converter with an integrated N-FET to drive up to 5~6 white LEDs in series.

The series connection allows the LED current to be identical for uniform brightness.

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Datasheet Details

Part number XR3081
Manufacturer XySemi
File Size 456.36 KB
Description Step-Up Converter
Datasheet download datasheet XR3081 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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XR3081 _______________________________________________________________________________________________________ 1.2MHz, High-Efficiency, Step-Up Converter for 5 to 6 White LEDs General Description The XR3081 is a current-mode and fixed frequency boost converter with an integrated N-FET to drive up to 5~6 white LEDs in series. The series connection allows the LED current to be identical for uniform brightness. Its low on resistance of N- FET and feedback voltage reduce power loss and achieve high efficiency. Fast 1.2MHz current-mode PWM operation is available for input and output capacitors and a small inductor while minimizing ripple on the input supply. The OVP pin monitors the output voltage and stops switching if exceeds the over-voltage threshold.