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CAT3603 Datasheet 3-channel Led Driver

Manufacturer: onsemi

Overview: CAT3603 3-Channel LED Driver in 3 x 3 mm Package.

General Description

The CAT3603 is a charge pump LED driver operating in either 1x (LDO) mode or 1.5x fractional mode regulating current through each of the 3 LED pins.

Operation at a constant switching frequency of 1 MHz allows the use of very small value ceramic capacitors.

The CAT3603 drives 3 white LEDs in parallel and provides tightly matched regulated current to achieve uniform brightness in LCD backlighting applications.

Key Features

  • Drives up to 3 LEDs.
  • Current Setting Resistor.
  • Compatible with Supply Voltage of 3 V to 5.5 V.
  • Power Efficiency up to 91%.
  • Output Current up to 30 mA per LED.
  • Fractional Pump 1x/1.5x.
  • Low Noise Input Ripple.
  • Fixed High Frequency Operation 1 MHz.
  • “Zero” Current Shutdown Mode.
  • Soft Start and Current Limiting.
  • Short Circuit Protection.
  • 12.
  • lead TDFN 3 mm x 3 mm Package.
  • This.

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