LED Drivers
  • SC668
    • 8 LED Light Management Unit Automatic Dropout Prevention , Ambient Light Sense Input, PWM Dimming, and 4 LDOs
  • SC667
    • 7 LED Light Management Unit Automatic Dropout Prevention, Ambient Light Sense Input, PWM Dimming, and 4 LDOs
  • SC662
    • Backlight Driver for 6 LEDs with SemPulse® Interface
  • SC657
    • Charge Pump LED Driver for 5BL + SemPulse Interface
  • SC5010H
    • High Efficiency 8-Channel LED Driver with I2C Interface and Phase-Shifted PWM Dimming
  • SC5010
    • High Efficiency 8-Channel LED Driver with I2C Interface and Phase-Shifted PWM Dimming
  • SC4541
    • High Frequency LED Driver with Integrated Schottky and Simple Interconnect
  • SC446
    • High Efficiency Integrated Driver for 3-Strings of 100mA LEDs
Semtech SC653

Semtech SC653

Charge Pump LED Driver for 4BL + 2LDO + SemPulse Interface

The SC653 is a highly integrated light management unit that provides two low-noise LDOs, a multi-mode high efficiency charge pump, and four programmable LED drivers. Performance is optimized for use in single-cell Liion battery applications.

Features


  • Input supply voltage range — 2.9V to 5.5V
  • Four programmable current sinks with 29 steps from
    0mA to 25mA
  • Very high effi ciency charge pump driver system with
    three modes — 1x, 1.5x and 2x
  • One programmable 100mA low-noise LDO regulator
  • One programmable 150mA low-noise LDO regulator
  • Charge pump frequency — 250kHz
  • SemPulse single wire interface
  • Backlight current accuracy — ±1.5% typical
  • Backlight current matching — ±0.5% typical
  • Fade-in/fade-out feature for main backlight
  • Automatic sleep mode (LEDs off ) — IQ = 100μA
  • Shutdown current — 0.1μA (typical)
  • Ultra-thin package — 2.3 x 2.3 x 0.6 (mm)
  • Fully WEEE and RoHS compliant

Applications


  • Cellular phones, smart phones, and PDAs
  • LCD modules
  • Portable media players
  • Digital cameras and GPS units
  • Display backlighting and LED indicators

Packaging

MLPQ-UT-18

Order Codes

  • SC653ULTRT: Lead-Free, WEEE and RoHS compliant, 3000 pcs, Tape and Reel Only