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Mobile Phone
Mobile Phone
DSC
MP3
White LED Backlighting
LCD Display Supply
Very High Efficiency Over 80% of Battery Life
Very High Efficiency Over 80% of Battery Life
Support up to 3 White LEDs
Support Up to 60mA Output Current
1% Typical LED Current Matching
Soft Start Function
Auto Charge Pump Mode Selection
250kHz Fixed Frequency Oscillator
Output Over Voltage Protection
16 Steps Brightness Control
Low Input Noise and EMI
RoHS Compliant and 100% Lead (Pb)-Free
3-Channel Charge Pump White LED Driver with Low Dropout Current Source
The RT9373A is a high efficiency and cost effective charge pump white LED ,driver. It supports up to 3 white LEDs with regulated constant current for ,uniform intensity. The RT9373A maintains the highest efficiency by utilizing a ,x1/x1.5/x2 charge pump and low dropout current regulators.,User can easily configure each LED current from 1.25mA to 20mA by a pulse ,dimming control. The dimming of white LEDs current can be achieved by applying ,a pulse signal to the EN pin. There are totally 16 steps of current could be ,set by users.,RT9373A is available in a WQFN3x3-16L package.,,
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