CP2123 Description
The CP2123 is a step-up DC/DC converter specifically designed for driving white LEDs with a constant current. The device can drive up to 33 white LEDs from a 3.5V power supply or 60 white LEDs from a 10-24V power supply. PWM dimming control is supported to adjust the brightness of white LEDs.
CP2123 Key Features
- Inherently matched LED current
- High efficiency: Up to 90%
- Over-voltage protection with linear OVP voltage setting
- Fast 1.4 MHz switching frequency
- Shutdown current: <1μA
- SOT23-6L and DFN-8L package
- Up to 1MHz PWM Dimming
- Drives up to 12 series connected LEDs from a 3.5V power supply
- Drives up to 33(11×3) LEDs from a 3.5V power supply
- Drives up to 60 LEDs from a 10V power supply