Datasheet4U Logo Datasheet4U.com

CP2126 Datasheet White Led Step-up Converter

Manufacturer: CHIP

Overview: CP2126 Product Brief DC/DC Series CP2126_PB_ ENG _Rev1.0 March,2004 Step-Up White-LED Driver .. 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 ponents. The external capacitor can be as small as 0.22uF, saving space and cost versus alternative solutions. A low 95mV feedback voltage minimizes power loss in the current setting resistor for better efficiency.

Datasheet Details

Part number CP2126
Manufacturer CHIP
File Size 96.71 KB
Description White LED Step-up Converter
Datasheet CP2126_CHIP.pdf

Key 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 CS LX 5 3 95mV + + RC CC 1 VREF 1.25V A1 - A2 R S Q Q1 + + Ramp Generator Power Down 900KHz Oscillator A3 - 0.2 Ohm 2 GND SHDN 4 Copyright ©2004 Chiphomer Technology Limited Page.

More Datasheets from CHIP

Part Number Description
CP2122 Step-Up White-LED Driver
CP2123 Step-Up White-LED Driver Brief
CP2123 Step-Up White-LED Driver
CP2124 Step-Up White-LED Driver Brief
CP2124 Step-Up White-LED Driver
CP2125 White LED Step-up Converter
CP2125E Step-Up White-LED Driver
CP2128 Low Noise Charge Pump DC/DC Converter
CP2129 White LED Step-up Converter
CP2130 High Efficiency 1x/1.5x Fractional Charge Pump

CP2126 Distributor