com Preliminary RT9269 Tiny Package, High Efficiency, Constant Current LED Driver General Description The RT9269 is a compact, high efficient LED driver with high flexibility of application configurations in charge pump mode or in boost rectifier mode, delivering Tens of mA constant output current for driving 1~4 white LED’s.
The 0.
25V low reference voltage minimized the power loss across the current-setting resistor.
The wide applicable VDD range makes RT9269 suitable for 1 to 4 battery cell applications as well as being supplied with 2.
5/3.
3/5/6V system powers.
The 500kHz high switching rate minimized the size of external components.
Besides, the 17µA low quiescent curre...

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