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1A Charge Pump LED Driver


The EUP3611 is a large-current charge pump designed specifically for white LEDs used in camera flash applications. Only one small bucket capacitor is required to develop the output drive, providing a low EMI solution compared with inductive boost regulators.

The EUP3611 has two operation modes: Flash mode and Movie mode. In Flash mode, the EUP3611 is capable of delivering up to 1A. A safety timer is also included to ensure the LED can not be on indefinitely and overheat.

The EUP3611 is available in a 10-pin TDFN and WCSP-12 packages.


  • •Flash mode - output current up to 1A at VIN=3.6V
  • •Flash and movie - two able modes
  • •Built in flash mode safety timer protection
  • •1X and 2X automatic mode for high efficiency
  • •Input range – 2.7V to 5.5V
  • •External flash control pin for synchronization to a camera module or graphics controller
  • •Short-circuit, over-voltage, over-current and over-temperature protection
  • •Soft-start functionality
  • •3mm 3mm TDFN-10 and 1.2mm 1.6mm WCSP-12 Packages
  • •RoHS compliant and 100% lead (Pb)-free
  • Halogen-Free


  • •Mobile Camera Phones
  • •Digital Cameras
  • •PDAs with Built-In Cameras
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