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2MHz, 1A Flash LED Driver

        • Input voltage range: 2.7V~5.5V

        • Dual Flash LED outputs

        • Drive up to total 1A or 0.5A per channel

        • High efficiency LED driver (up to 89%)

        • 2MHz step-up converter

        • Very small inductor: 1.0µH

        • Independent flash-mode enable and movie/torch-mode enable pins

        • Movie/torch-mode dimming via PWM control

        • One resistor sets flash-mode LED current

        • One resistor sets movie/torch-mode LED current

        • Integrated thermal regulation control

        • LED open/short protection

        • Over-voltage protection

        • Cycle-by-cycle inductor current limit

        • 0.1 µA shutdown current

        • Pb-free Package: TDFN2x3-14

        • -40°C to +85°C Temperature Range


  • Mobile Phones

  • Smart Phones and PDAs

  • Digital Still Cameras

Key Electrical Specifications

Vin(Min) Vin(Max) Channels Output Current Per Channel (Max) Control  Package
2.7V 5.5V 2 500mA  PWM TDFN23-14

Typical Application Diagram