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LM2758TL/NOPB

Switched Capacitor Flash LED Driver in DSBGA Package

Packaging

Package | PIN: YZR | 12
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $1.50
10-24 $1.34
25-99 $1.25
100-249 $1.09
250-499 $1.00
500-749 $0.84
750-999 $0.69
1000+ $0.63

Features

  • Up to 700-mA Output Current
  • 90% Peak Efficiency
  • Indicator, Torch, and Flash Modes
  • Time-out Circuitry Limits Flash Duration to 814 Milliseconds (Typical)
  • Adaptive 1× and 1.5× Gains for Maximum Efficiency
  • True Shutdown
  • Internal Soft-Start Eliminates Inrush Current
  • Ultra-Small Solution Size
    • No Inductor, Only 4 Capacitors and a Resistor Required
    • 2.022 mm × 1.527 mm × 0.6 mm Thin DSBGA package

Texas Instruments  LM2758TL/NOPB

The LM2758 device 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 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.

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. Internal soft-start circuitry limits the amount of inrush current during start-up.

For all available packages, see the orderable addendum at the end of the data sheet.