EUP2571-White LED Step-Up Converter In Tiny SOT-23 Package DataSheet

DESCRIPTION

      The EUP2571 is a constant current step-up converter specifically designed to drive white LEDs. The Step-up converter topology allows series connection of the white LEDs so the LED currents are identical for uniform brightness. The EUP2571 switches at 1.1MHz, allowing the use of tiny external components. The input and output capacitor can be as small as 1μF, saving space and cost versus alternative solutions. A low 0.25V feedback voltage minimizes power loss in the current setting resistor for better efficiency.
      The EUP2571 is available in low profile SOT23-5, SOT23-6 package.

FEATURES

•  2.6V to 5.5V Input Range
•  26V Output with Over Voltage Protection
•  High Efficiency :85 % Typical
•  PWM Dimming Control
•  Internal High Power 30V MOSFET Switch
•  Fast 1.1MHz Switching Frequency
•  Small, Low-Profile Inductors and Capacitors
•  SOT23-5,SOT23-6 Package
•  RoHS Compliant and 100% Lead (Pb)-Free

APPLICATIONS

•  Mobile Phone
•  Digital Still Camera
•  PDAs, Handheld Computers
•  MP3 Players
•  GPS Receivers