CP2126 white LED driver circuit diagram

Published:2011/8/25 20:59:00 Author:Lucas | Keyword: white LED driver | From:SeekIC

CP2126 is the boost DC / DC converter which uses constant current to drive white LED. CP2126's main technical characteristics are as follow. ① the 3.2V power supply can drive four series of white LEDs. ② high efficiency: 85% (typical value). ③ it only needs 0.22μF output capacitor. ④ stable 20V bipolar switch. ⑤ working switching frequency is 900kHz, and it can the small inductor with the height in only 1mm. ⑥ working temperature environment meets the industry-standard: -40 ~ 85 ℃. ⑦it uses flat SOT23-5L package.



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