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LM2758 - Switched Capacitor Flash LED Driver

Datasheet Summary

Description

LM2758 is an integrated low-noise, high-current switched capacitor DC/DC converter with a regulated current sink.

The device is capable of driving loads up to 700 mA from a singlecell Li-Ion battery.

Features

  • Up to 700 mA Output Current.
  • Ultra-Small Solution Size.
  • No Inductor, Only 4 Capacitors and a resistor Required.
  • 1.514 mm x 1.996 mm x 0.6 mm thin micro SMD package 90% Peak Efficiency Indicator, Torch and Flash Modes Time-Out Circuitry Limits Flash Duration to 814 msec. (typ. ) Adaptive 1x and 1.5x Gains for Maximum Efficiency True Shutdown Internal Soft-Start Eliminates Inrush Current.

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Datasheet preview – LM2758

Datasheet Details

Part number LM2758
Manufacturer National Semiconductor
File Size 1.00 MB
Description Switched Capacitor Flash LED Driver
Datasheet download datasheet LM2758 Datasheet
Additional preview pages of the LM2758 datasheet.

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www.DataSheet.in LM2758 Switched Capacitor Flash LED Driver in micro SMD October 9, 2009 LM2758 Switched Capacitor Flash LED Driver in micro SMD General Description LM2758 is an integrated low-noise, high-current switched capacitor DC/DC converter with a regulated current sink. The device is capable of driving loads up to 700 mA from a singlecell 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. One external low-power resistor sets the desired current for Indicator, Torch and Flash modes. To protect the devices and the flash LED, internal Time-out circuitry turns off the LM2758 in case of a faulty prolonged Flash mode.
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