PT4101 Datasheet - Powtech

PT4101 White LED Step-Up Converter

The PT4101 is a step-up DC/DC converter designed for driving up to 5 white LEDs in series from a single cell Lithium Ion battery with constant current. Because it directly regulates output current, the PT4101 is ideal for driving light emitting diodes (LEDs) whose light intensity is proportional to .

PT4101 Features

* z z z z z z z Drives Up to 5 Series White LEDs from 3V Up to 87% Efficiency 1.25MHz Fixed Switching Frequency Low 104mV Feedback Voltage Open Load Shutdown PWM Dimming SOT23-6 Packages APPLICATIONS z z z z Cell Phones Handheld Computers and PDAs Digital Cameras Small LCD Displays ORDERING INFORMAT

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