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MAX8631X - White LED Charge Pump

Features

  • Powers Up to 8 LEDs Up to 30mA/LED Drive for Backlight Up to 400mA Total Drive for Flash.
  • Two Internal Low-Noise 200mA LDOs.
  • 94% Max/85% Avg Efficiency (PLED/PBATT) over Li+ Battery Discharge.
  • 0.2% Typical LED Current Matching.
  • Adaptive 1x/1.5x/2x Mode Switchover.
  • Flexible Brightness Control Single-Wire Serial Pulse Interface (32 Steps) 2-Bit Logic (Three Levels).
  • Thermal TA Derating Function.
  • Low Input Ripple and EMI.

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Full PDF Text Transcription

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www.DataSheet4U.com 19-3688; Rev 2; 5/06 KIT ATION EVALU E L B A AVAIL 1x/1.5x/2x White LED Charge Pump with Two LDOs in 4mm x 4mm Thin QFN General Description Features ♦ Powers Up to 8 LEDs Up to 30mA/LED Drive for Backlight Up to 400mA Total Drive for Flash ♦ Two Internal Low-Noise 200mA LDOs ♦ 94% Max/85% Avg Efficiency (PLED/PBATT) over Li+ Battery Discharge ♦ 0.2% Typical LED Current Matching ♦ Adaptive 1x/1.5x/2x Mode Switchover ♦ Flexible Brightness Control Single-Wire Serial Pulse Interface (32 Steps) 2-Bit Logic (Three Levels) ♦ Thermal TA Derating Function ♦ Low Input Ripple and EMI ♦ 2.7V to 5.
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