PRELIMINARY CM9153 Charge Pump White LED Driver
Features
• • • • • • • • • • • • • • • 3.0V to 6.5V input voltage range Two mode operation; 1x and 1.5x Fixed 4.5V output with initial accuracy of ± 2% Supports 150mA (@4V) continuous output current High efficiency at both high and low input voltages Low external parts count, requires no inductor PWM brightness control via the ENA pin 650-kHz switching frequency Low shutdown current of
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