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LTC3452 - Synchronous Buck-Boost MAIN/CAMERA White LED Driver

Features

  • High Efficiency: ≥85% Over Entire Li-Ion Battery Range.
  • Wide VIN Range: 2.7V to 5.5V.
  • Independent MAIN/CAMERA Current Control.
  • Up to 425mA Continuous Output Current.
  • Internal Soft-Start.
  • Open/Shorted LED Protection.
  • PWM Brightness Control.
  • LED Current Matching Typically.

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Full PDF Text Transcription

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U U LTC3452 Synchronous Buck-Boost MAIN/CAMERA White LED Driver FEATURES ■ High Efficiency: ≥85% Over Entire Li-Ion Battery Range ■ Wide VIN Range: 2.7V to 5.5V ■ Independent MAIN/CAMERA Current Control ■ Up to 425mA Continuous Output Current ■ Internal Soft-Start ■ Open/Shorted LED Protection ■ PWM Brightness Control ■ LED Current Matching Typically <2.5% ■ Constant Frequency 1MHz Operation ■ Low Shutdown Current: 6.5µA ■ Overtemperature Protection ■ Small Thermally Enhanced 20-Lead (4mm × 4mm) QFN Package U APPLICATIO S ■ Cell Phones ■ Digital Cameras ■ PDAs ■ Portable Devices , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
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