• SC445
  • 150mA 4-strings高效集成驱动器LED
  • SC440
  • 30mA LED 6-strings高效的集成驱动器
  • SC440A
  • 30mA LED 6-strings高效集成驱动器
  • SC441A
  • 150mA的LED高效集成驱动器4-strings AEC - Q100标准合格
  • SC441C
  • 150mA的LED -高电压输入4-strings高效集成驱动器
  • SC442
  • 10频道,综合效率高120,白色LED驱动器
  • SC443
  • 30mA LED 3-Strings高效集成的升压驱动器
  • SC446
  • 100mA的LED 3-strings高效集成驱动器
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.


  • 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


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



Order Codes

  • SC653ULTRT: Lead-Free, WEEE and RoHS compliant, 3000 pcs, Tape and Reel Only
- Close -
Add Product to Watch List

Please login to the mySemtech member site to add products to your personal Watch List.

If you're not registered for mySemtech, please Register now. mySemtech member benefits include pre-filled forms for quick and easy online ordering, technical support, new product information and more.