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LM2759 - 1A Switched Capacitor Flash LED Driver

General Description

LM2759 is an integrated low-noise, high-current switched capacitor DC/DC converter with a regulated current source.

The device requires only four small ceramic capacitors making the total solution area less than 22 mm2 and the height less than 1 mm.

Key Features

  • Up to 1A Output Current Solution Area < 22 mm2 No Inductor Required 90% Peak Efficiency Adaptive 1x, 1.5x and 2x Gains for Maximum Efficiency Load Disconnect in Shutdown Accurate Input Current Control During Gain Transitions Flash Time-Out TX Input Pin Ensures Synchronization with RF Power Amplifier Pulse Torch, Flash, and Indicator Modes External Flash Enable via Strobe Input Pin Strobe Input Disable via I.

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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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LM2759 PRODUCT BRIEF: 1A Switched Capacitor Flash LED Driver with I2C Compatible Interface November 20, 2008 LM2759 PRODUCT BRIEF 1A Switched Capacitor Flash LED Driver with I2C www.datasheet4u.com Compatible Interface General Description LM2759 is an integrated low-noise, high-current switched capacitor DC/DC converter with a regulated current source. The device requires only four small ceramic capacitors making the total solution area less than 22 mm2 and the height less than 1 mm. The LM2759 is capable of driving loads up to 1A from a single-cell Li-Ion battery. Maximum efficiency is achieved over the input voltage range by actively selecting the proper gain based on the LED forward voltage and current requirements.