Charge Pumps
  • SC627
    • LED Light Management Unit with SemWire™ Interface
  • SC627A
    • LED Light Management Unit with I2C Interface
  • SC630
    • Fixed 3.3V High Output Charge Pump Buck/Boost Regulator
  • SC631
    • Fixed 4.4V Output Charge Pump Regulator
  • SC658
    • Backlight LED Driver for 4 LEDs with SemPulse™ Interface
  • SC657
    • Backlight LED Driver for 5 LEDs with SemPulse™ Interface
  • SC654
    • Light Management Unit for 6 LEDs with SemPulse™ Interface
  • SC652
    • Backlight LED Driver for 5 LEDs with Charge Pump and PWM Control
  • EZ1587I
    • 3 Amp Positive Voltage Regulator
  • LCDA24
    • 24 V Low-Capacitance TVS Diode Array For High-Speed Data Interfaces
  • LCDA15C-8
    • 15 V Low-Capacitance, 8-Line TVS Array
  • SC561
    • Dual Output Low Noise LDO Linear Regulator
  • SC810
    • Single Input/Single Mode Single-cell Li-ion Battery Charger
  • SCDAS4F
    • Standard Recovery, High Current Center Tap and Doubler Rectifier Assemblies
Semtech SC619

Semtech SC619

Charge Pump Flash LED Driver with Safety Timer

The SC619 is a high-current charge pump designed specifically for use with white LEDs used in camera flash applications. Only two small bucket capacitors are required to develop the output drive, providing a low EMI solution compared to inductive boost regulators.

Features

  • Flash and spotlight — two selectable modes
  • Flash mode — up to 700mA output
  • Flash mode — 500mA max output (over rated voltage, temperature, and load conditions)
  • Flash mode safety timer shut-off — 1 second
  • Spotlight mode set to 20% of flash current
  • Spotlight mode — up to 140mA output
  • Spotlight mode —1x mode (under most conditions) for best efficiency
  • Input range — 3.0V to 5.25V
  • External fl ash control pin for synchronization to a camera module or graphics controller
  • Short-circuit, over-voltage, and over-temperature protection
  • Soft-start functionality
  • Separate flash and spotlight control inputs for maximum versatility
  • Ultra-thin package MLPD-UT-10 — 3mm x 3mm x 0.6mm

Applications

  • Mobile camera phones
  • Digital cameras
  • PDAs with built-in cameras

Packaging

MLPD-UT-10 (3X3 mm)

Order Codes

  • SC619ULTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel