CP2126 Datasheet - CHIP

CP2126 White LED Step-up Converter

CP2126 Product Brief DC/DC Series CP2126_PB_ ENG _Rev1.0 March,2004 Step-Up White-LED Driver www.datasheet4u.com OVERVIEW The CP2126 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive two, three or four white LEDs in series from a Li-Ion cell. Series connection of LEDs provides identical LED currents resulting in uniform brightness. The CP2126 switches at 900KHz， allowing the use of tiny components. The external capacitor can be.

CP2126 Features

* Inherently matched LED current High efficiency: 85% typical Drives up to four LEDs from a 3.2V supply 20V stable bipolar switch Fast 900KHz switching frequency Uses tiny 1mm tall inductors Requires only 0.22uF output capacitor Operating Industrial temperature range: -40℃ ~ 85℃ SOT23-5L package VIN

CP2126_CHIP.pdf