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KB4312 - Constant Current Switching Regulator

General Description

The KB4312 step-up converter drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-held devices.

Key Features

  • Operating Voltage:2.5V~6.5V.
  • High Operating Frequency: 1.2MHz.
  • High Efficiency: Up to 92%.
  • High Output Voltage: Up to 28V(max).
  • Shutdown Current.

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Datasheet Details

Part number KB4312
Manufacturer Kingbor Technology
File Size 177.48 KB
Description Constant Current Switching Regulator
Datasheet download datasheet KB4312 Datasheet

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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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Kingbor Technology Co.,Ltd TEL:(86)0755-26508846 FAX:(86)0755-26509052 KB4312 Very Low Cost Tiny Package, High Performance, Constant Current Switching Regulator for White LED FEATURES •Operating Voltage:2.5V~6.5V •High Operating Frequency: 1.2MHz •High Efficiency: Up to 92% •High Output Voltage: Up to 28V(max) •Shutdown Current <1PA •18V Output Over-voltage protection (ADJ) •Digital Dimming Control. •Built-in Cycle-by Cycle Current-limiting. •Built-in Soft-Start Function. •0.24V Low Reference Voltage(+/-5%) •Tiny SOT23 Package APPLICATIONS • LED Module • LED Backlight for LCD Display (1” ~6.5 ” ) • Constant Current Source! DESCRIPTION The KB4312 step-up converter drives white LEDs with a constant current to provide backlight in cell phones, PDAs, and other hand-held devices.